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-{"global":{"3dfx":"Enable support for Voodoo chipsets, also called as 3DFX and TDFX","X":"Add support for X11","Xaw3d":"Add support for the 3d athena widget set","a52":"Enable support for decoding ATSC A/52 streams used in DVD","aac":"Enable support for MPEG-4 AAC Audio","aalib":"Add support for media-libs/aalib (ASCII-Graphics Library)","accessibility":"Add support for accessibility (eg 'at-spi' library)","acl":"Add support for Access Control Lists","acpi":"Add support for Advanced Configuration and Power Interface","adns":"Add support for asynchronous DNS resolution","afs":"Add OpenAFS support (distributed file system)","aim":"Enable AIM IM protocol support","alsa":"Add support for media-libs/alsa-lib (Advanced Linux Sound Architecture)","altivec":"Add support for optimizations for G4 and G5/ppc970 processors","ao":"Use libao audio output library for sound playback","apache2":"Add Apache2 support","apm":"Add APM (Advanced Power Management) support","aqua":"Include support for the Mac OS X Aqua (Carbon/Cocoa) GUI","atm":"Enable Asynchronous Transfer Mode protocol support","audiofile":"Add support for libaudiofile where applicable","avahi":"Add avahi/Zeroconf support","ayatana":"Build in support for Ayatana notification using the libindicate or libappindicator plugin","bash-completion":"Enable bash-completion support","bcmath":"Add support for libbcmath","berkdb":"Add support for sys-libs/db (Berkeley DB for MySQL)","bidi":"Enable bidirectional language support","bindist":"Flag to enable or disable options for prebuilt (GRP) packages (eg. due to licensing issues)","blas":"Add support for the virtual/blas numerical library","bluetooth":"Enable Bluetooth Support","bootstrap":"!!internal use only!! DO NOT SET THIS FLAG YOURSELF!, used during original system bootstrapping [make stage2]","boundschecking":"Add the bounds checking patch by Haj Ten Brugge, this will DISABLE the hardened PIE+SSP patches","branding":"Enable Gentoo specific branding","bsf":"Enable support for Apache Bean Scripting Framework (dev-java/bsf)","build":"!!internal use only!! DO NOT SET THIS FLAG YOURSELF!, used for creating build images and the first half of bootstrapping [make stage1]","bzip2":"Use the bzlib compression library","cairo":"Enable support for the cairo graphics library","calendar":"Add support for calendars (not using mcal!)","canna":"Add support for the Canna kana to kanji conversion engine","caps":"Use Linux capabilities library to control privilege","cdb":"Add support for the CDB database engine from the author of qmail","cdda":"Add Compact Disk Digital Audio (Standard Audio CD) support","cddb":"Access cddb servers to retrieve and submit information about compact disks","cdinstall":"Copy files from the CD rather than asking the user to copy them, mostly used with games","cdparanoia":"Enable cdparanoia (audio CD ripper) support","cdr":"Add support for CD writer hardware","cgi":"Add CGI script support","cjk":"Add support for Multi-byte character languages (Chinese, Japanese, Korean)","clamav":"Add support for Clam AntiVirus software (usually with a plugin)","connman":"Add support for net-misc/connman","coreaudio":"Build the CoreAudio driver on Mac OS X systems","cracklib":"Support for cracklib strong password checking","crypt":"Add support for encryption -- using mcrypt or gpg where applicable","cscope":"Enable cscope interface -- in vim for example","css":"Enable reading of encrypted DVDs","ctype":"Enable ctype functions","cups":"Add support for CUPS (Common Unix Printing System)","curl":"Add support for client-side URL transfer library","curlwrappers":"Add support for using curl in streams","custom-cflags":"Build with user-specified CFLAGS (unsupported)","cvs":"Enable CVS (Concurrent Versions System) integration","cxx":"Build support for C++ (bindings, extra libraries, code generation, ...)","dbi":"Enable dev-db/libdbi (database-independent abstraction layer) support","dbm":"Add support for generic DBM databases","dbus":"Enable dbus support for anything that needs it (gpsd, gnomemeeting, etc)","debug":"Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml","dedicated":"Add support for dedicated game servers (some packages do not provide clients and servers at the same time)","dga":"Add DGA (Direct Graphic Access) support for X","directfb":"Add support for DirectFB layer (library for FB devices)","djvu":"Support DjVu, a PDF-like document format esp. suited for scanned documents","doc":"Add extra documentation (API, Javadoc, etc). It is recommended to enable per package instead of globally","dri":"Enable direct rendering: used for accelerated 3D and some 2D, like DMA","dts":"Enable DTS Coherent Acoustics decoder support","dv":"Enable support for a codec used by many camcorders","dvb":"Add support for DVB (Digital Video Broadcasting)","dvd":"Add support for DVDs","dvdr":"Add support for DVD writer hardware (e.g. in xcdroast)","eds":"Enable support for Evolution-Data-Server (EDS)","emacs":"Add support for GNU Emacs","emboss":"Add support for the European Molecular Biology Open Software Suite","encode":"Add support for encoding of audio or video files","enscript":"Add enscript support to colourize code stored in the repository","evo":"Add support for mail-client/evolution","examples":"Install examples, usually source code","exif":"Add support for reading EXIF headers from JPEG and TIFF images","expat":"Enable the use of dev-libs/expat for XML parsing","fam":"Enable FAM (File Alteration Monitor) support","fastcgi":"Add support for the FastCGI interface","fbcon":"Add framebuffer support for the console, via the kernel","ffmpeg":"Enable ffmpeg/libav-based audio/video codec support","fftw":"Use FFTW library for computing Fourier transforms","filecaps":"Use Linux file capabilities to control privilege rather than set*id (this is orthogonal to USE=caps which uses capabilities at runtime e.g. libcap)","firebird":"Add support for the Firebird relational database","flac":"Add support for FLAC: Free Lossless Audio Codec","flatfile":"Add dbm support for flat files","fltk":"Add support for the Fast Light Toolkit gui interface","fontconfig":"Support for configuring and customizing font access via media-libs/fontconfig","foomaticdb":"Add support for the foomatic printing driver database","fortran":"Add support for fortran","freetds":"Add support for the TDS protocol to connect to MSSQL/Sybase databases","freewnn":"Add support for FreeWnn kana to kanji conversion engine","frontbase":"Add support for the frontbase sql server","ftp":"Add FTP (File Transfer Protocol) support","gcj":"Enable building with gcj (The GNU Compiler for the Javatm Programming Language)","gd":"Add support for media-libs/gd (to generate graphics on the fly)","gdbm":"Add support for sys-libs/gdbm (GNU database libraries)","geoip":"Add geoip support for country and city lookup based on IPs","ggi":"Add support for media-libs/libggi (non-X video api/drivers)","gif":"Add GIF image support","gimp":"Build a plugin for the GIMP","git":"Enable git (version control system) support","glut":"Build an OpenGL plugin using the GLUT library","gmp":"Add support for dev-libs/gmp (GNU MP library)","gnome":"Add GNOME support","gnome-keyring":"Enable support for storing passwords via gnome-keyring","gnuplot":"Enable support for gnuplot (data and function plotting)","gnutls":"Add support for net-libs/gnutls (TLS 1.0 and SSL 3.0 support)","gphoto2":"Add digital camera support","gpm":"Add support for sys-libs/gpm (Console-based mouse driver)","gps":"Add support for Global Positioning System","graphviz":"Add support for the Graphviz library","gsl":"Use the GNU scientific library for calculations","gsm":"Add support for the gsm lossy speech compression codec","gstreamer":"Add support for media-libs/gstreamer (Streaming media)","gtk":"Add support for x11-libs/gtk+ (The GIMP Toolkit)","guile":"Add support for the guile Scheme interpreter","gzip":"Compress files with Lempel-Ziv coding (LZ77)","handbook":"Enable handbooks generation for KDE4.","hardened":"Activate default security enhancements for toolchain (gcc, glibc, binutils)","hddtemp":"Enable monitoring of hdd temperature (app-admin/hddtemp)","hdf5":"Add support for the Hierarchical Data Format v5","hscolour":"Include coloured haskell sources to generated documentation (dev-haskell/hscolour)","ibm":"Add support for IBM ppc64 specific systems","iconv":"Enable support for the iconv character set conversion library","icq":"Enable ICQ IM protocol support","icu":"Enable ICU (Internationalization Components for Unicode) support, using dev-libs/icu","idn":"Enable support for Internationalized Domain Names","ieee1394":"Enable FireWire/iLink IEEE1394 support (dv, camera, ...)","imagemagick":"Enable support for Imagemagick (image converter)","imap":"Add support for IMAP (Internet Mail Application Protocol)","imlib":"Add support for imlib, an image loading and rendering library","infiniband":"Enable Infiniband RDMA transport support","inifile":"Add dbm support for .ini files","inotify":"Enable inotify filesystem monitoring support","introspection":"Add support for GObject based introspection","iodbc":"Add support for iODBC library","ios":"Enable support for Apple's iDevice with iOS operating system (iPad, iPhone, iPod, etc)","ipod":"Enable support for iPod device access","ipv6":"Add support for IP version 6","iwmmxt":"Add support for optimizations for ARM iwMMXt instructions","jabber":"Enable jabber IM protocol support","jack":"Add support for the JACK Audio Connection Kit","java":"Add support for Java","java6":"Use Java 1.6 to build package with || ( reduced deps, 1.6 features, source/target 1.6 )","javascript":"Enable javascript support","jbig":"Enable jbig-kit support for tiff, Hylafax, ImageMagick, etc","jingle":"Enable voice calls for jabber","jit":"Enable just-in-time compilation for improved performance. May prevent use of some PaX memory protection features in Gentoo Hardened.","joystick":"Add support for joysticks in all packages","jpeg":"Add JPEG image support","jpeg2k":"Support for JPEG 2000, a wavelet-based image compression format","kde":"Add support for KDE (K Desktop Environment)","kerberos":"Add kerberos support","kolab":"Add support for the Kolab groupware server","kontact":"Enable support for the KDE personal information manager (kde-base/kdepim*)","ladspa":"Enable the ability to support ladspa plugins","lame":"Prefer using LAME libraries for MP3 encoding support","lapack":"Add support for the virtual/lapack numerical library","lash":"Add LASH Audio Session Handler support","latex":"Add support for LaTeX (typesetting package)","lcms":"Add lcms support (color management engine)","ldap":"Add LDAP support (Lightweight Directory Access Protocol)","libass":"SRT/SSA/ASS (SubRip / SubStation Alpha) subtitle support","libav":"Prefer libav over ffmpeg whenever both are supported","libcaca":"Add support for colored ASCII-art graphics","libedit":"Use the libedit library (replacement for readline)","libffi":"Enable support for Foreign Function Interface library","libnotify":"Enable desktop notification support","libsamplerate":"Build with support for converting sample rates using libsamplerate","libwww":"Add libwww support (General purpose WEB API)","lirc":"Add support for lirc (Linux's Infra-Red Remote Control)","livecd":"!!internal use only!! DO NOT SET THIS FLAG YOURSELF!, used during livecd building","lm_sensors":"Add linux lm_sensors (hardware sensors) support","lua":"Enable Lua scripting support","lzma":"Support for LZMA (de)compression algorithm","lzo":"Enable support for lzo compression","m17n-lib":"Enable m17n-lib support","mad":"Add support for mad (high-quality mp3 decoder library and cli frontend)","maildir":"Add support for maildir (~/.maildir) style mail spools","matroska":"Add support for the matroska container format (extensions .mkv, .mka and .mks)","matrox":"Add Matrox MGA support to mplayer","mbox":"Add support for mbox (/var/spool/mail) style mail spools","memlimit":"Add memory usage limiting in supporting programs","mhash":"Add support for the mhash library","migemo":"Enable migemo support for Japanese","mikmod":"Add libmikmod support to allow playing of SoundTracker-style music files","milter":"Add sendmail mail filter (milter) support","mime":"Add MIME support","minimal":"Install a very minimal build (disables, for example, plugins, fonts, most drivers, non-critical features)","mmap":"Add mmap (memory map) support","mms":"Support for Microsoft Media Server (MMS) streams","mng":"Add support for libmng (MNG images)","modplug":"Add libmodplug support for playing SoundTracker-style music files","modules":"Build the kernel modules","mono":"Build Mono bindings to support dotnet type stuff","motif":"Add support for the Motif toolkit","mozilla":"Add support for the Mozilla web-browser","mp3":"Add support for reading mp3 files","mp4":"Support for MP4 container format","mpeg":"Add libmpeg3 support to various packages","mpi":"Add MPI (Message Passing Interface) layer to the apps that support it","mplayer":"Enable mplayer support for playback or encoding","msn":"Enable MSN Messenger IM protocol support","mssql":"Add support for Microsoft SQL Server database","mtp":"Enable support for Media Transfer Protocol","mule":"Add multi-language support to XEmacs","multilib":"On 64bit systems, if you want to be able to compile 32bit and 64bit binaries","musepack":"Enable support for the musepack audio codec","musicbrainz":"Lookup audio metadata using MusicBrainz community service (musicbrainz.org)","mysql":"Add mySQL Database support","mysqli":"Add support for the improved mySQL libraries","nas":"Add support for network audio sound","ncurses":"Add ncurses support (console display library)","neXt":"Enable neXt toolkit","neon":"Enable optimization support for ARM NEON processors","netboot":"Enable network booting","netcdf":"Enable NetCDF data format support","networkmanager":"Enable net-misc/networkmanager support","nis":"Support for NIS/YP services","nls":"Add Native Language Support (using gettext - GNU locale utilities)","nntp":"Add support for newsgroups (Network News Transfer Protocol)","nocd":"Install all files required to run the application without a CD mounted","nptl":"Enable support for Native POSIX Threads Library, the new threading module (requires linux-2.6 or better usually)","nsplugin":"Build plugin for browsers supporting the Netscape plugin architecture (that is almost any modern browser)","ocaml":"Add support/bindings for the Ocaml language","ocamlopt":"Enable ocamlopt support (ocaml native code compiler) -- Produces faster programs (Warning: you have to disable/enable it at a global scale)","oci8":"Add Oracle 8 Database Support","oci8-instant-client":"Use dev-db/oracle-instantclient-basic as Oracle provider instead of requiring a full Oracle server install","odbc":"Add ODBC Support (Open DataBase Connectivity)","offensive":"Enable potentially offensive items in packages","ofx":"Enable support for importing (and exporting) OFX (Open Financial eXchange) data files","ogg":"Add support for the Ogg container format (commonly used by Vorbis, Theora and flac)","openal":"Add support for the Open Audio Library","openexr":"Support for the OpenEXR graphics file format","opengl":"Add support for OpenGL (3D graphics)","openmp":"Build support for the OpenMP (support parallel computing), requires >=sys-devel/gcc-4.2 built with USE=\"openmp\"","oracle":"Enable Oracle Database support","orc":"Use dev-lang/orc for just-in-time optimization of array operations","osc":"Enable support for Open Sound Control","oscar":"Enable Oscar (AIM/ICQ) IM protocol support","oss":"Add support for OSS (Open Sound System)","pam":"Add support for PAM (Pluggable Authentication Modules) - DANGEROUS to arbitrarily flip","pch":"Enable precompiled header support for faster compilation at the expense of disk space and memory (>=sys-devel/gcc-3.4 only)","pcmcia":"Add support for PCMCIA slots/devices found on laptop computers","pcntl":"Add support for process creation functions","pcre":"Add support for Perl Compatible Regular Expressions","pda":"Add support for portable devices","pdf":"Add general support for PDF (Portable Document Format), this replaces the pdflib and cpdflib flags","perl":"Add optional support/bindings for the Perl language","php":"Include support for the PHP language","pie":"Build programs as Position Independent Executables (a security hardening technique)","plasma":"Build optional KDE plasma addons","plotutils":"Add support for plotutils (library for 2-D vector graphics)","png":"Add support for libpng (PNG images)","policykit":"Enable PolicyKit authentication support","portaudio":"Add support for the crossplatform portaudio audio API","posix":"Add support for POSIX-compatible functions","postgres":"Add support for the postgresql database","postscript":"Enable support for the PostScript language (often with ghostscript-gpl or libspectre)","ppds":"Add support for automatically generated ppd (printing driver) files","prefix":"Defines if a Gentoo Prefix offset installation is used","prelude":"Add support/bindings for the Prelude Intrusion Detection System","profile":"Add support for software performance analysis (will likely vary from ebuild to ebuild)","pulseaudio":"Add support for PulseAudio sound server","python":"Add optional support/bindings for the Python language","qdbm":"Add support for the qdbm (Quick Database Manager) library","qmail-spp":"Add support for qmail SMTP plugins","qt4":"Add support for the Qt GUI/Application Toolkit version 4.x","qt5":"Add support for the Qt 5 application and UI framework","quicktime":"Add support for OpenQuickTime","radius":"Add support for RADIUS authentication","raw":"Add support for raw image formats","rdesktop":"Add support for the remote desktop protocol, usually used to connect to Windows servers","readline":"Enable support for libreadline, a GNU line-editing library that almost everyone wants","recode":"Enable support for the GNU recode library","rss":"Enable support for RSS feeds","ruby":"Add support/bindings for the Ruby language","samba":"Add support for SAMBA (Windows File and Printer sharing)","sasl":"Add support for the Simple Authentication and Security Layer","savedconfig":"Use this to restore your config from /etc/portage/savedconfig ${CATEGORY}/${PN}. Make sure your USE flags allow for appropriate dependencies","scanner":"Add support for scanner hardware (e.g. build the sane frontend in kdegraphics)","sdl":"Add support for Simple Direct Layer (media library)","seamonkey":"Add support for the Seamonkey web-browser","seccomp":"Enable seccomp for system call filtering","selinux":"!!internal use only!! Security Enhanced Linux support, this must be set by the selinux profile or breakage will occur","semantic-desktop":"Cross-KDE support for semantic search and information retrieval","session":"Add persistent session support","sharedmem":"Add support for shared memory use","shorten":"Add support for the shorten audio compressor","simplexml":"Support for SimpleXML","skey":"Enable S/Key (Single use password) authentication support","slang":"Add support for the slang text display library (it's like ncurses, but different)","slp":"Add Service Locator Protocol support","smartcard":"Enable smartcard support","smp":"Enable support for multiprocessors or multicore systems","sndfile":"Add support for libsndfile","snmp":"Add support for the Simple Network Management Protocol if available","soap":"Add support for SOAP (Simple Object Access Protocol)","sockets":"Add support for tcp/ip sockets","socks5":"Add support for the socks5 proxy","sound":"Enable sound support","source":"Zip the sources and install them","sox":"Add support for Sound eXchange (SoX)","speex":"Add support for the speex audio codec (used for speech)","spell":"Add dictionary support","sqlite":"Add support for sqlite - embedded sql database","sqlite3":"Add support for sqlite3 - embedded sql database","ssl":"Add support for Secure Socket Layer connections","startup-notification":"Enable application startup event feedback mechanism","static":"!!do not set this during bootstrap!! Causes binaries to be statically linked instead of dynamically","static-libs":"Build static versions of dynamic libraries as well","subversion":"Enable subversion (version control system) support","suid":"Enable setuid root program, with potential security risks","svg":"Add support for SVG (Scalable Vector Graphics)","svga":"Add support for SVGAlib (graphics library)","sybase":"Add support for the Sybase SQL Database Server","sybase-ct":"Add support for Sybase-CT","symlink":"Force kernel ebuilds to automatically update the /usr/src/linux symlink","syslog":"Enable support for syslog","systemd":"Enable use of systemd-specific libraries and features like socket activation or session tracking","sysvipc":"Support for System V-compatible inter-process communication","szip":"Use the szip compression library","taglib":"Enable tagging support with taglib","tcl":"Add support the Tcl language","tcmalloc":"Use the dev-util/google-perftools libraries to replace the malloc() implementation with a possibly faster one","tcpd":"Add support for TCP wrappers","test":"Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore","theora":"Add support for the Theora Video Compression Codec","threads":"Add threads support for various packages. Usually pthreads","tidy":"Add support for HTML Tidy","tiff":"Add support for the TIFF image format","timidity":"Build with Timidity++ (MIDI sequencer) support","tk":"Add support for Tk GUI toolkit","tokenizer":"Add support for the PHP file parser","truetype":"Add support for FreeType and/or FreeType2 fonts","uclibc":"Enable uclibc specific patches and build or link uclibc","udev":"Enable virtual/udev integration (device discovery, power and storage device support, etc)","udisks":"Enable storage management support (automounting, volume monitoring, etc)","unicode":"Add support for Unicode","upnp":"Enable UPnP port mapping support","upnp-av":"Enable UPnP audio/video streaming support","upower":"Enable power management support","usb":"Add USB support to applications that have optional USB support (e.g. cups)","v4l":"Enable support for video4linux (using linux-headers or userspace libv4l libraries)","vaapi":"Enable Video Acceleration API for hardware decoding","vala":"Enable bindings for dev-lang/vala","vanilla":"Do not add extra patches which change default behaviour; DO NOT USE THIS ON A GLOBAL SCALE as the severity of the meaning changes drastically","vcd":"Video CD support","vdpau":"Enable the Video Decode and Presentation API for Unix acceleration interface","vhosts":"Add support for installing web-based applications into a virtual-hosting environment","videos":"Install optional video files (used in some games)","vim-syntax":"Pulls in related vim syntax scripts","vnc":"Enable VNC (remote desktop viewer) support","vorbis":"Add support for the OggVorbis audio codec","wayland":"Enable dev-libs/wayland backend","wavpack":"Add support for wavpack audio compression tools","wddx":"Add support for Web Distributed Data eXchange","webkit":"Add support for the WebKit HTML rendering/layout engine","wifi":"Enable wireless network functions","wmf":"Add support for the Windows Metafile vector image format","wxwidgets":"Add support for wxWidgets/wxGTK GUI toolkit","x264":"Enable h264 encoding using x264","xattr":"Add support for extended attributes (filesystem-stored metadata)","xcb":"Support the X C-language Binding, a replacement for Xlib","xcomposite":"Enable support for the Xorg composite extension","xemacs":"Add support for XEmacs","xface":"Add xface support used to allow a small image of xface format to be included in an email via the header 'X-Face'","xft":"Build with support for XFT font renderer (x11-libs/libXft)","xine":"Add support for the XINE movie libraries","xinerama":"Add support for the xinerama X11 extension, which is mandatory if you work in multiple monitors setup","xinetd":"Add support for the xinetd super-server","xml":"Add support for XML files","xmlrpc":"Support for xml-rpc library","xmp":"Enable support for Extensible Metadata Platform (Adobe XMP)","xmpp":"Enable support for Extensible Messaging and Presence Protocol (XMPP) formerly known as Jabber","xosd":"Sends display using the X On Screen Display library","xpm":"Add support for XPM graphics format","xscreensaver":"Add support for XScreenSaver extension","xv":"Add in optional support for the Xvideo extension (an X API for video playback)","xvid":"Add support for xvid.org's open-source mpeg-4 codec","yahoo":"Enable Yahoo Messenger IM protocol support","yaz":"Add in optional support for the Z39.50 Protocol for Information Retrieval (YAZ)","zeroconf":"Support for DNS Service Discovery (DNS-SD)","zlib":"Add support for zlib (de)compression","zsh-completion":"Enable zsh completion support"},"local":{"app-accessibility":{"brltty":{"api":"build brltty's application program interface","beeper":"support the console tone generator","contracted-braille":"support in-line contracted braille","fm":"support for the sound card synthesizer","midi":"support the musical instrument digital interface","pcm":"support for sound card digital audio","speech":"speech support"},"eflite":{"16k_voice":"Use a higher-quality voice."},"emacspeak":{"espeak":"Adds support for the espeak tts engine"},"festival-it":{"mbrola":"Adds support for mbrola voices"},"freetts":{"jsapi":"build Java Speech API (JSAPI)","mbrola":"Adds support for mbrola voices"},"orca":{"braille":"Enable braille support"},"simon":{"kdepim":"Use kde-base/kdepimlibs","opencv":"Use media-libs/opencv","sphinx":"Build sphinx backend (pulls app-accessibility/julius if disabled"},"speech-dispatcher":{"espeak":"Adds support for espeak speech engine","flite":"Adds support for flite speech engine"},"speechd-el":{"brltty":"brltty support"}},"app-admin":{"bcfg2":{"cheetah":"Include dev-python/cheetah support","genshi":"Include dev-python/genshi support","server":"Installs scripts to be used on the server-side of this app"},"clsync":{"cgroups":"Use cgroups to limit /dev access.","cluster":"Enable clustering support (allows master-master clsync on multiple hosts). Not fully implemented yet.","control-socket":"Enable AF_UNIX control socket support.","extra-hardened":"Enable extra security checks. This will hurt performance.","gio":"Enable GIO for FS monitoring (glib based alternative to inotify interface, not recommended; if both are compiled, may be selected at runtime).","highload-locks":"Allows to use spinlocks for short delays instead of mutexes, but only on SMP systems.","namespaces":"Enable namespaces isolation."},"collectd":{"collectd_plugins_aggregation":"Build the aggregation plugin (aggregate multiplte values into a single value)","collectd_plugins_apache":"Build the apache input plugin (transferred bytes, handled requests, detailed scoreboard statistics)","collectd_plugins_apcups":"Build the apcups input plugin (UPS charge, load, input/output/battery voltage, etc.)","collectd_plugins_ascent":"Build the ascent input plugin (statistics about a free server for World of Warcraft)","collectd_plugins_battery":"Build the battery input plugin (charge, current and voltage of ACPI and PMU based laptop batteries)","collectd_plugins_bind":"Build the bind input plugin (name server and resolver statistics)","collectd_plugins_cgroups":"Build the cgroups CPU accounting collection plugin","collectd_plugins_conntrack":"Build the conntrack input plugin (number of nf_conntrack entries)","collectd_plugins_contextswitch":"Build the contextswitch input plugin (number of context switches done by the operating system)","collectd_plugins_cpu":"Build the cpu input plugin (time spent in the system, user, nice, idle, and related states)","collectd_plugins_cpufreq":"Build the cpufreq input plugin (CPU frequency, for laptops with speedstep or similar)","collectd_plugins_csv":"Build the csv output plugin (write to comma separated values (CSV) files)","collectd_plugins_curl":"Build the curl input plugin (parse statistics from websites using regular expressions)","collectd_plugins_curl_json":"Build the curl_json input plugin (get json data via curl and parse it)","collectd_plugins_curl_xml":"Build the curl_xml input plugin (get xml data via curl and parse it)","collectd_plugins_dbi":"Build the dbi input plugin (execute SQL statements on databases and interpret the reply)","collectd_plugins_df":"Build the df input plugin (mountpoint usage)","collectd_plugins_disk":"Build the disk input plugin (sectors read/written, number of read/write actions, average completion time of IO-operations)","collectd_plugins_dns":"Build the dns input plugin (collects statistics of your DNS traffic on port udp/53)","collectd_plugins_email":"Build the email input plugin (opens a UNIX domain socket and starts accepting connections on that socket)","collectd_plugins_entropy":"Build the entropy input plugin (available entropy on a system)","collectd_plugins_ethstat":"Build the ethstat input plugin (performance statistics of Linux ethernet cards)","collectd_plugins_exec":"Build the exec input/output plugin (executes scripts / applications and reads values back)","collectd_plugins_filecount":"Build the filecount input plugin (countd the number of files in a directory and all its subdirectories)","collectd_plugins_fscache":"Build the fscache input plugin (information about the caching infrastructure for network file-systems etc)","collectd_plugins_gmond":"Build the gmond input plugin (receive data from gmond, the client daemon of the Ganglia project)","collectd_plugins_hddtemp":"Build the hddtemp input plugin (temperature of hard disks)","collectd_plugins_interface":"Build the interface input plugin (information about traffic, packets and errors of interfaces)","collectd_plugins_ipmi":"Build the ipmi input plugin (read hardware sensors from servers using the Intelligent Platform Management Interface (IPMI))","collectd_plugins_iptables":"Build the iptables input plugin (statistics from a ip_tables based packet filter)","collectd_plugins_irq":"Build the irq input plugin (number of times each interrupt has been handled by the os)","collectd_plugins_java":"Build the java input plugin (embeds a JVM into collectd for writing plugins)","collectd_plugins_libvirt":"Build the libvirt input plugin (statistics about virtualized guests on a system)","collectd_plugins_load":"Build the load input plugin (system load)","collectd_plugins_logfile":"Build the logfile output plugin (writes log messages to a text file)","collectd_plugins_lvm":"Build the LVM input plugin","collectd_plugins_madwifi":"Build the madwifi input plugin (information about Atheros wireless LAN chipsets)","collectd_plugins_match_empty_counter":"Build the match_empty_counter filter plugin","collectd_plugins_match_hashed":"Build the match_hashed filter plugin","collectd_plugins_match_regex":"Build the match_regex filter plugin","collectd_plugins_match_timediff":"Build the match_timediff filter plugin","collectd_plugins_match_value":"Build the match_value filter plugin","collectd_plugins_mbmon":"Build the mbmon input plugin (information from mainboard sensors)","collectd_plugins_md":"Build the md input plugin (disk states in Linux md devices)","collectd_plugins_memcachec":"Build the memcachec input plugin (connects to a memcached server)","collectd_plugins_memcached":"Build the memcached input plugin (connects to a memcached daemon)","collectd_plugins_memory":"Build the memory input plugin (physical memory utilization)","collectd_plugins_multimeter":"Build the multimeter input plugin (reads a voltage or current from a multimeter connected to a serial bus)","collectd_plugins_mysql":"Build the mysql input plugin (connects to an MySQL-database and issues a SHOW STATUS command)","collectd_plugins_netlink":"Build the netlink input plugin (opens a netlink socket to the Linux kernel for getting statistics)","collectd_plugins_network":"Build the network input/output plugin (communicates with other instances of collectd)","collectd_plugins_nfs":"Build the nfs input plugin (usage of the Network File System)","collectd_plugins_nginx":"Build the nginx input plugin (number of requests handled by the nginx daemon)","collectd_plugins_notify_desktop":"Build the notify_desktop output plugin (uses libnotify to display notifications to the user)","collectd_plugins_notify_email":"Build the notify_email output plugin (uses libESMTP to send notifications to a configured email address)","collectd_plugins_ntpd":"Build the ntpd input plugin (queries an NTP server)","collectd_plugins_numa":"Build the numa input plugin (statistics of the Linux Non-Uniform Memory Access (NUMA) subsystem)","collectd_plugins_nut":"Build the nut input plugin (collects UPS statistics using the Network UPS Tools)","collectd_plugins_olsrd":"Build the olsrd input plugin (reads information about the Optimized Link State Routing daemon)","collectd_plugins_onewire":"Build the onewire input plugin (collects temperature information from sensors)","collectd_plugins_openvpn":"Build the openvpn input plugin (reads the status file printed by OpenVPN)","collectd_plugins_oracle":"Build the oracle input plugin (SQL-queries one or more Oracle database systems)","collectd_plugins_perl":"Build the perl language binding plugin (embeds a Perl interpreter into collectd for writing plugins)","collectd_plugins_ping":"Build the ping input plugin (measures network latency)","collectd_plugins_postgresql":"Build the postgresql input plugin (connects to and executes SQL statements on a PostgreSQL database)","collectd_plugins_powerdns":"Build the powerdns input plugin (connects to a local PowerDNS instance)","collectd_plugins_processes":"Build the processes input plugin (statistics about processes)","collectd_plugins_protocols":"Build the protocols input plugin (network protocols)","collectd_plugins_python":"Build the python language binding plugin (embeds a Python interpreter into collectd for writing plugins)","collectd_plugins_routeros":"Build the routeros input plugin (collect information on devices running RouterOS)","collectd_plugins_rrdcached":"Build the rrdcached input/output plugin (connects to rrdcached and submits updates for RRD files)","collectd_plugins_rrdtool":"Build the rrdtool output plugin (writes values to RRD-files)","collectd_plugins_sensors":"Build the sensors input plugin (uses lm-sensors to read hardware sensors)","collectd_plugins_serial":"Build the serial input plugin (collects the traffic on serial interfaces)","collectd_plugins_snmp":"Build the snmp input plugin (read values from network devices using SNMP)","collectd_plugins_statsd":"Build the statsd input plugin (accepts statsd-type metrics from a UDP socket)","collectd_plugins_swap":"Build the swap input plugin (amount of memory currently written to swap)","collectd_plugins_syslog":"Build the syslog output plugin (receives messages from collectd and dispatches them to syslog)","collectd_plugins_table":"Build the table input plugin (parses table-like structured plain text)","collectd_plugins_tail":"Build the tail input plugin (follows logfiles as e.g. tail -f)","collectd_plugins_target_notification":"Build the target_notification filter plugin","collectd_plugins_target_replace":"Build the target_replace filter plugin","collectd_plugins_target_scale":"Build the target_scale filter plugin","collectd_plugins_target_set":"Build the target_set filter plugin","collectd_plugins_tcpconns":"Build the tcpconns input plugin (number of TCP connections to or from a specified port)","collectd_plugins_teamspeak2":"Build the teamspeak2 input plugin (collects traffic statistics from a teamspeak2 instance)","collectd_plugins_ted":"Build the ted input plugin (connects to The Energy Detective and reads the current power over connected power lines)","collectd_plugins_thermal":"Build the thermal input plugin (ACPI thermal zone information)","collectd_plugins_threshold":"Build the threshold plugin (checks values against configured thresholds and creates notifications if values are out of bounds)","collectd_plugins_tokyotyrant":"Build the tokyotyrant input plugin (number of records and file size from a running Tokyo Tyrant server)","collectd_plugins_unixsock":"Build the unixsock output plugin (opens a UNIX domain socket and accepts connections)","collectd_plugins_uptime":"Build the uptime input plugin (system uptime)","collectd_plugins_users":"Build the users input plugin (number of users currently logged in)","collectd_plugins_uuid":"Build the uuid plugin (tries hard to determine the UUID of the system it is running on)","collectd_plugins_varnish":"Build the varnish input plugin","collectd_plugins_vmem":"Build the vmem input plugin (information about the virtual memory subsystem)","collectd_plugins_vserver":"Build the vserver input plugin (virtual servers running on a system)","collectd_plugins_wireless":"Build the wireless input plugin (signal quality, signal power and signal-to-noise ratio for wireless LAN cards)","collectd_plugins_write_graphite":"Build the write_graphite output plugin (sends the values collected by collectd to Carbon, the storage layer of the Graphite time-series database)","collectd_plugins_write_http":"Build the write_http output plugin (sends the values collected by collectd to a web-server)","collectd_plugins_write_mongodb":"Build the write_mongodb output plugin (sends the values collected by collectd to a MongoDB)","contrib":"Install user-contributed files in the doc directory"},"conky":{"apcupsd":"enable support for sys-power/apcupsd","audacious":"enable monitoring of music played by media-sound/audacious","eve":"enable support for the eve-online skill monitor","iostats":"enable support for per-task I/O statistics","lua":"enable if you want Lua scripting support","lua-cairo":"enable if you want Lua Cairo bindings for Conky (also enables lua support)","lua-imlib":"enable if you want Lua Imlib2 bindings for Conky (also enables lua and imlib support)","math":"enable support for glibc's libm math library","moc":"enable monitoring of music played by media-sound/moc","mpd":"enable monitoring of music controlled by media-sound/mpd","nano-syntax":"enable syntax highlighting for app-editors/nano","nvidia":"enable reading of nvidia card temperature sensors via media-video/nvidia-settings","portmon":"enable support for tcp (ip4) port monitoring","thinkpad":"enable support for IBM/Lenovo notebooks","weather-metar":"enable support for metar weather service","weather-xoap":"enable support for metar and xoap weather service","xmms2":"enable monitoring of music played by media-sound/xmms2"},"diamond":{"mongo":"Enable MongoDB support","redis":"Enable Redis support"},"diradm":{"automount":"Support for automount data in LDAP","irixpasswd":"Support for storing separate IRIX passwords"},"elektra":{"gcov":"Enable coverage support","simpleini":"Enable simpleini support","uname":"Enable uname information for the key database","yajl":"Enable yajl support"},"eselect-php":{"fpm":"Enable the FastCGI Process Manager SAPI"},"gkrellm":{"X":"Build both the X11 gui (gkrellm) and the server (gkrellmd). Disabling this flag builds the server only.","gnutls":"Enable SSL support for mail checking with net-libs/gnutls (overrides 'ssl' USE flag)","hddtemp":"Enable monitoring harddrive temperatures via app-admin/hddtemp","lm_sensors":"Enable monitoring sensors via sys-apps/lm_sensors","ntlm":"Enable NTLM authentication for mail checking with net-libs/libntlm","ssl":"Enable SSL support for mail checking with dev-libs/openssl"},"glance":{"swift":"Adds swift storage support"},"hddtemp":{"network-cron":"Monthly cronjob to update hddtemp.db."},"keepass":{"aot":"Generate native code at build time, rather than runtime."},"lastpass":{"chrome":"Support for www-client/chrome","chromium":"Support for www-client/chromium","firefox":"Support for www-client/firefox"},"lastpass-cli":{"X":"Use x11-misc/xclip or x11-misc/xsel to copy passwords to the clipboard.","pinentry":"Use app-crypt/pinentry to prompt for passwords."},"logrotate":{"acl":"Installs acl support","selinux":"Installs Security Enhanced Linux support"},"mate-system-tools":{"caja":"Adds support for the Caja file manager","nfs":"Adds support for NFS shares"},"matter":{"entropy":"Add Entropy support"},"mcollective":{"client":"Install client utilities"},"mms-agent":{"monitoring":"Install the monitoring agent"},"openrc-settingsd":{"systemd":"Use the versions of dbus and polkit files provided by sys-apps/systemd"},"packagekit-base":{"command-not-found":"Enable packagekit support on shell \"command not found\"","cron":"Install cron script for auto-update","entropy":"Enable Entropy backend","introspection":"Use dev-libs/gobject-introspection Enable introspection","pm-utils":"Add pm-utils (suspend/resume) functionalities"},"pass":{"X":"Use x11-misc/xclip to copy passwords to the clipboard.","dmenu":"Add support for x11-misc/dmenu with the 'passmenu' program.","fish-completion":"Enable fish completion support.","git":"Use dev-vcs/git for password revisions.","importers":"Allow importing passwords from other password managers using various contributed scripts."},"puppet":{"augeas":"Enable augeas support","diff":"Enable diff support","rrdtool":"Enable rrdtool support","shadow":"Enable shadow support"},"rsyslog":{"dbi":"Build the general database output module (requires dev-db/libdbi)","elasticsearch":"Build the Elasticsearch output module (requires net-misc/curl)","gcrypt":"Add support for encrypted log files using dev-libs/libgcrypt","jemalloc":"Use dev-libs/jemalloc for allocations.","kerberos":"Build the GSSAPI input and output module (requires virtual/krb5)","mongodb":"Build the MongoDB output module (requires dev-libs/libmongo-client)","mysql":"Build the MySQL databse output module (requires virtual/mysql)","normalize":"Build the normalize modify module (requires dev-libs/libee and dev-libs/liblognorm)","omudpspoof":"Build the udpspoof output module (requires net-libs/libnet)","oracle":"Build the Oracle database output module (requires dev-db/oracle-instantclient-basic)","postgres":"Build the PostgreSQL database output module (requires dev-db/postgresql-base)","rabbitmq":"Build the RabbitMQ output module (requires net-libs/rabbitmq-c)","redis":"Build the Redis output module using (requires dev-libs/hiredis)","relp":"Build the Reliable Event Logging Protocol (RELP) output module (requires dev-libs/librelp)","rfc3195":"Build the rfc3195 input module (requires dev-libs/liblogging)","rfc5424hmac":"Build the rfc5424hmac modify module (requires dev-libs/openssl)","snmp":"Build the snmp modify and output module (requires net-analyzer/net-snmp)","ssl":"Add support for encrypted client/server communication (requires net-libs/gnutls)","systemd":"Build the journal input and output module (requires sys-apps/systemd)","usertools":"Installs the user tools (rsgtutil, rscryutil...) corresponding to the set USE flags","zeromq":"Build the ZeroMQ input and output modules (requires net-libs/zeromq)"},"sagan":{"libdnet":"Add support for dev-libs/libdnet","lognorm":"Add support for log/rules normalizations via dev-libs/liblognorm","pcap":"Add support for network packet capture via net-libs/libpcap","smtp":"Build witch SMTP (E-Mail) support","snort":"Add support to interact with Snort IDE using net-analyzer/snortsam'"},"sagan-rules":{"lognorm":"Install normalize rules support with dev-libs/liblognorm"},"salt":{"api":"Enable support for salt-api.","cherrypy":"Enable support for cherrypy.","gnupg":"Enable support for gnupg via python-gnupg.","keyring":"Enable support for keyrings via python-keyring.","libcloud":"Enable salt-cloud support via libcloud.","libvirt":"Support managing virtual machines with app-emulation/libvirt.","mako":"Add support for using the mako template engine for parsing salt states.","mongodb":"Support returning data to a mongodb server.","nova":"Enable support for the OpenStack Nova API","openssl":"Add support for using TLS via OpenSSL.","raet":"Add support for the new RAET transport.","redis":"Support returning data to a redis database.","timelib":"Use timelib to parse english textual date descriptions.","zeromq":"Add support for the zeromq transport."},"sshguard":{"ipfilter":"Enable ipfilter firewall support (only for *bsd)"},"sudo":{"offensive":"Let sudo print insults when the user types the wrong password.","sendmail":"Allow sudo to send emails with sendmail."},"sysklogd":{"logrotate":"use app-admin/logrotate for rotating logs rather than custom cron scripts"},"syslog-ng":{"amqp":"Enable support for AMQP destinations","json":"Enable support for JSON template formatting via dev-libs/json-c","mongodb":"Enable support for mongodb destinations","pacct":"Enable support for reading Process Accounting files (EXPERIMENTAL, Linux only)","redis":"Enable support for Redis destinations","smtp":"Enable support for SMTP destinations","spoof-source":"Enable support for spoofed source addresses"},"sysstat":{"cron":"Install /etc/cron.d script to periodically run sar","isag":"Install isag, the Interactive System Activity Graph tool"},"testdisk":{"ntfs":"Include the ability to read NTFS filesystems","reiserfs":"include reiserfs reading ability"},"tripwire":{"ssl":"Adds support for Secure Socket Layer connections","static":"Builds the package statically","tools":"Installs app-admin/mktwpol, providing scripts for the installation/setup of tripwire, including generating the tripwire policy file and maintenance of the tripwire database"},"ulogd":{"json":"Build JSON output plugin to save packets in JSON file format.","mysql":"Build MySQL output plugin to save packets in a mysql database.","nfacct":"Build NFACCT input plugin to support traffic accounting via nfnetlink_acct.","nfct":"Build NFCT input plugin to support stateful flow-based via nf_conntrack_netlink.","nflog":"Build NFLOG input plugin to support stateless packet-based logging via nfnetlink_queue.","pcap":"Build PCAP output plugin to save packets in libpcap file format.","postgres":"Build PGSQL output plugin to save packets in a postgres database.","sqlite":"Build SQLITE3 output plugin to save packets in a sqlite database."},"webalizer":{"xtended":"Include the 404 extension"},"webapp-config":{"portage":"Propagete python_targets dependencies to sys-apps/portage"},"yaala":{"storable":"Support for persistence of Perl data structures."}},"app-antivirus":{"clamav":{"clamdtop":"A Top like tool which shows what clamd is currently scanning amongst other things","metadata-analysis-api":"Enables collection of file property metadata using ClamAV API for analysis by ClamAV bytecode programs."}},"app-arch":{"cabextract":{"extra-tools":"Install experimental tools: wince_info and wince_rename for examining and processing Windows CE installation cabinet header files; cabinfo for examining the structure of a cab file."},"cfv":{"bittorrent":"Enable support for checking .torrent files"},"dpkg":{"update-alternatives":"Install update-alternatives"},"dump":{"ermt":"encrypted rmt support"},"engrampa":{"caja":"Enable engrampa to integrate with mate-base/caja by providing entries in its context menu"},"file-roller":{"nautilus":"Enable file-roller to integrate with gnome-base/nautilus by providing entries in its context menu","packagekit":"Enable support for the distro-neutral package manager GUI app-admin/packagekit"},"gzip":{"pic":"disable optimized assembly code that is not PIC friendly"},"innoextract":{"c++0x":"Compile innoextract using the C++11 standard."},"libarchive":{"bzip2":"Allow accessing bzip2-compressed archives through libbz2 (which comes with app-arch/bzip2). This only affects libarchive's native support: bsdtar will keep using bunzip2 as a filter if that's not built-in.","e2fsprogs":"Use file flags from sys-fs/e2fsprogs headers instead of virtual/os-headers headers","nettle":"Use dev-libs/nettle as crypto backend","zlib":"Allow accessing gzip-compressed archives through sys-libs/zlib. This only affects libarchive's native support: bsdtar will keep using gunzip as a filter if that's not built-in. It's also needed for supporting extraction of ZIP files."},"libzpaq":{"jit":"Enable just-in-time compilation for faster compression (requires SSE2)"},"lz4":{"valgrind":"Enable usage of dev-util/valgrind in tests"},"p7zip":{"rar":"Enable support for non-free rar decoder"},"pbzip2":{"symlink":"Install symlinks which override app-arch/bzip2 implementation"},"rar":{"all_sfx":"Install all SFX (Self-Extracting) files rather than just the native format (allows creation of Windows EXEs on Linux ELF systems)"},"tar":{"minimal":"just install `tar`"},"unzip":{"natspec":"Use dev-libs/libnatspec to correctly decode non-ascii file names archived in Windows."},"zip":{"natspec":"Use dev-libs/libnatspec to correctly decode non-ascii file names archived in Windows."}},"app-backup":{"amanda":{"s3":"Support for backing up to the Amazon S3 system","xfs":"Support for backing up raw XFS filesystems using xfsdump"},"backup-manager":{"s3":"Support for backing up to the Amazon S3 system"},"bacula":{"bacula-clientonly":"Disable DB support, and just build a client","bacula-nodir":"Disable building of director","bacula-nosd":"Disable building of storage daemon","logwatch":"Install support files for logwatch"},"bareos":{"cephfs":"Enable cephfs storage backend","clientonly":"Only install file-daemon (client)","director":"Install director","fastlz":"Enable support vor lz4, lz4hc and lzfast using dev-libs/bareos-fastlzlib","glusterfs":"Enable glusterfs storage backend","lmdb":"enable build of LMDB support for faster accurate backup","logwatch":"Install support files for logwatch","ndmp":"Enable support for NDMP (Network Data Management Protocol)","rados":"Enable rados storage backend","scsi-crypto":"Enable low level SCSI crypto support","sql-pooling":"Enable SQL pooling support","storage-daemon":"Install storage daemon (bareos-sd)"},"boxbackup":{"client-only":"Disable server support, and just build a client"},"dar":{"dar32":"Enables --enable-mode=32 option, which replace infinite by 32 bit integers","dar64":"Enables --enable-mode=64 option, which replace infinite by 64 bit integers","gcrypt":"Enables strong encryption support"},"deja-dup":{"nautilus":"Build gnome-base/nautilus extension"},"duplicity":{"s3":"Support for backing up to the Amazon S3 system"},"holland-backup-mysql-meta":{"lvm":"Install Holland LVM Plugin","mysqldump":"Install Holland mysqldump Plugin","mysqlhotcopy":"Install Holland mysqlhotcopy Plugin"},"rear":{"udev":"Have ReaR start backup when attaching your USB drive."},"snapper":{"btrfs":"Include Btrfs support sys-fs/btrfs-progs","ext4":"Include Ext4 support sys-fs/e2fsprogs","lvm":"Enable LVM thinprovisioned snapshots support sys-fs/lvm2","xattr":"Add support for getting and setting POSIX extended attributes, through sys-apps/attr."},"spideroak-bin":{"headless":"Build without graphic frontend"},"tsm":{"hsm":"Installs Tivoli Storage Manager for Space Management","tsm_cit":"IBM Tivoli Common Inventory Technology","tsm_hw":"Difference snapshot support for NetApp and N-Series file servers"}},"app-benchmarks":{"jmeter":{"beanshell":"Enable BeanShell scripting support"},"ltp":{"expect":"Build against the expect library for interactive testing","open-posix":"Build and install the POSIX testsuite","pm":"Build and install the power management testsuite","rt":"Build and install the realtime testsuite"},"ramspeed":{"pic":"Force shared libraries to be built as PIC (this is slower)"},"sysbench":{"aio":"Enable libaio support"}},"app-cdr":{"backlite":{"mplayer":"Add support for mplayer preview in addition to X11 and phonon"},"brasero":{"libburn":"Enable dev-libs/libburn backend","nautilus":"Build the gnome-base/nautilus extension","packagekit":"Enable support for the distro-neutral package manager GUI app-admin/packagekit","playlist":"Enable support for playlists through dev-libs/totem-pl-parser","tracker":"Enable audio playlist search using the app-misc/tracker indexer"},"cdemu":{"cdemu-daemon":"Pull app-cdr/cdemu-daemon dependency, useful in chroot environment (bug #315491). Do not disable until you know what you are doing."},"cdrdao":{"gcdmaster":"Enable building of gcdmaster application"},"cdrkit":{"hfs":"Provide building of HFS (Apple) CD-images"},"cuetools":{"extras":"Install additional script that tag files based on cue/toc file information"},"disc-cover":{"cdrom":"Enable audio CD support. This is not needed to make www-apps/disc-cover work."},"gaffitter":{"scripts":"Install additional gaffitter scripts for external programs"},"k3b":{"emovix":"Enable burning support for eMoviX images"},"mirage2iso":{"pinentry":"Support app-crypt/pinentry password input backend."},"mybashburn":{"normalize":"Add support for normalizing audio file volume levels"}},"app-crypt":{"aespipe":{"asm":"Enable assebly modules","cpu_flags_x86_padlock":"Use VIA padlock instructions, detected at run time, code still works on non-padlock processors"},"ccid":{"twinserial":"Enable twinserial reader"},"codecrypt":{"cryptopp":"Build algorithms that need Crypto++ support dev-libs/crypto++"},"eid-mw":{"gtk":"Enable the dialog pages, by using x11-libs/gtk+:2","xpi":"Build and install an extension for Mozilla browsers."},"ekeyd":{"minimal":"Only install the ekey-egd-linux service rather than the full ekeyd package.","munin":"Install a plugin for net-analyzer/munin to graph statistical data from ekeyd.","usb":"Build the libusb-based userland daemon for accessing the EntropyKey (alternative to the CDC USB driver). It is suggested to use this option by default, as the CDC driver in the kernel often seems to be fragile (or the gadget implementation on the EntropyKey is too buggy), and can cause various problems."},"gnupg":{"mta":"Build mta support using virtual/mta.","smartcard":"Build scdaemon software. Enables usage of OpenPGP cards. For other type of smartcards, try app-crypt/gnupg-pkcs11-scd.","tools":"Install extra tools.","usb":"Build direct CCID access for scdaemon; requires dev-libs/libusb."},"gpgme":{"common-lisp":"Install common-lisp files"},"hashcat-gui":{"cuda":"Install oclhashcat-{plus,lite}-bin to take advantage of hardware cuda support.","opencl":"Install oclhashcat-{plus,lite}-bin to take advantage of hardware opencl support."},"heimdal":{"hdb-ldap":"Adds support for LDAP as a database backend","otp":"Adds support for one-time passwords","pkinit":"Adds support for PKINIT for the initial ticket"},"hmaccalc":{"fips":"Enable NSS FIPS mode and support only the FIPS-compliant functions"},"johntheripper":{"cuda":"Use nvidia cuda toolkit for speeding up cracking on capable devices","mozilla":"Support mozilla password cracking","opencl":"Enable opencl support for speeding up cracking on capable devices"},"kstart":{"afs":"Enables afs support which means you can acquire an afs token and set PAGs. It's recommended to set this USE if you need authenticated access to an AFS cell for your daemon/app."},"libsecret":{"vala":"Enable bindings for dev-lang/vala"},"libu2f-host":{"systemd":"Use user ACLs rather than plugdev group to give user access to the HIDRAW device."},"mit-krb5":{"doc":"Creates and installs the API and implementation documentation. This is only useful if you want to develop software which depends on kerberos.","keyutils":"Enable for the keyring ccache using keyutils.","openldap":"Enable support for ldap as a database backend.","pkinit":"Enable pkinit support for the initial ticket."},"oclhashcat-lite-bin":{"virtualcl":"Support for Mosix VirtualCL Clustering Platform"},"oclhashcat-plus-bin":{"virtualcl":"Support for Mosix VirtualCL Clustering Platform"},"ophcrack":{"tables":"Require the additional tables used to carry out cracking (app-crypt/ophcrack-tables)"},"ophcrack-tables":{"vistafree":"Installs the free Vista ophcrack tables","xpfast":"Installs the fast XP ophcrack tables","xpsmall":"Installs the small free XP ophcrack tables"},"p11-kit":{"asn1":"Enable ASN.1 certificate support","trust":"Build the trust policy module"},"pinentry":{"clipboard":"Enable clipboard integration"},"qca":{"botan":"Enable botan plugin","gcrypt":"Enable gcrypt plugin","gpg":"Enable GnuPG plugin","logger":"Enable logger plugin","nss":"Enable NSS plugin","openssl":"Enable OpenSSL plugin","pkcs11":"Enable PKCS#11 plugin","sasl":"Enable SASL plugin","softstore":"Enable softstore plugin"},"seahorse":{"ldap":"Enable seahorse to manipulate GPG keys on a LDAP server."},"shishi":{"3des":"Enable 3DES encryption/checksum type.","aes":"Enable AES encryption/checksum types.","arcfour":"Enable ARCFOUR encryption/checksum type.","des":"Enable DES related encryption/checksum types.","md":"Enable unkeyed MD4/MD5 checksum types.","null":"Enable dummy NULL encryption/checksum type."},"tc-play":{"openssl":"Use openssl crypto backend."},"tpm-tools":{"pkcs11":"Build Token data management utilities based on OpenCryptoki's (dev-libs/opencryptoki) PKCS#11 implementation."},"truecrypt":{"asm":"Enable assembly for optimization"}},"app-dicts":{"aspell-be":{"classic":"Support classic spelling by default"},"gwaei":{"hunspell":"Enable app-text/hunspell spellchecking and morphological analysis","mecab":"Enable app-text/mecab support","unique":"Enable single instance support using dev-libs/libunique."},"myspell-pt":{"preao":"Use the pre ortographic agreement version of the dictionary"}},"app-doc":{"csound-manual":{"html":"Install HTML documentation"},"doxygen":{"clang":"support for sys-devel/clang assisted parsing","dot":"allow to create dot graphs using media-gfx/graphviz","doxysearch":"build doxyindexer and doxysearch.cgi"},"linuxfromscratch":{"htmlsingle":"Install all-on-one-page HTML version."},"pms":{"binary":"Download pre-built files instead of building from sources","html":"Generate PMS as .html as well"},"root-docs":{"api":"Generate html API documentation","http":"Build HttpServer documentation","math":"Provide all math related documentation","metric":"Default to A4 paper size and metric measurement. Letter will be used otherwise"},"tldp-howto":{"html":"Install multi-chapter HTML docs","htmlsingle":"Install all-on-one-page HTML docs","pdf":"Install pdf docs","text":"Install plain-text docs"}},"app-editors":{"emacs":{"athena":"Enable the MIT Athena widget set (x11-libs/libXaw)","games":"Support shared score files for games","gconf":"Use gnome-base/gconf to read the system font name","gfile":"Use gfile (dev-libs/glib) for file notification","gsettings":"Use gsettings (dev-libs/glib) to read the system font name","gtk3":"Link against version 3 of the GIMP Toolkit instead of version 2 (x11-libs/gtk+)","gzip-el":"Compress bundled Emacs Lisp source","hesiod":"Enable support for net-dns/hesiod","imagemagick":"Use media-gfx/imagemagick for image processing","libxml2":"Use dev-libs/libxml2 to parse XML instead of the internal Lisp implementations","pax_kernel":"Enable building under a PaX enabled kernel","source":"Install C source files and make them available for find-function","toolkit-scroll-bars":"Use the selected toolkit's scrollbars in preference to Emacs' own scrollbars","wide-int":"Prefer wide Emacs integers (typically 62-bit). This option has an effect only on architectures where \"long\" and \"long long\" types have different size."},"emacs-vcs":{"athena":"Enable the MIT Athena widget set (x11-libs/libXaw)","games":"Support shared score files for games","gconf":"Use gnome-base/gconf to read the system font name","gfile":"Use gfile (dev-libs/glib) for file notification","gsettings":"Use gsettings (dev-libs/glib) to read the system font name","gtk3":"Link against version 3 of the GIMP Toolkit instead of version 2 (x11-libs/gtk+)","gzip-el":"Compress bundled Emacs Lisp source","hesiod":"Enable support for net-dns/hesiod","imagemagick":"Use media-gfx/imagemagick for image processing","libxml2":"Use dev-libs/libxml2 to parse XML instead of the internal Lisp implementations","pax_kernel":"Enable building under a PaX enabled kernel","source":"Install C source files and make them available for find-function","toolkit-scroll-bars":"Use the selected toolkit's scrollbars in preference to Emacs' own scrollbars","wide-int":"Prefer wide Emacs integers (typically 62-bit). This option has an effect only on architectures where \"long\" and \"long long\" types have different size."},"fe":{"sendmail":"Send mail after editor abend"},"gedit":{"zeitgeist":"Build the plugin to inject events to gnome-extra/zeitgeist"},"gedit-plugins":{"charmap":"Insert special characters just by clicking on them","git":"Shows document changes related to git's HEAD","terminal":"Embed a terminal in the bottom pane","zeitgeist":"Build the plugin to inject events to gnome-extra/zeitgeist"},"gvim":{"luajit":"Use dev-lang/luajit instead of dev-lang/lua","netbeans":"Include netbeans external editor integration support","racket":"Enable support for Scheme using dev-lang/racket"},"jasspa-microemacs":{"nanoemacs":"Build NanoEmacs instead of MicroEmacs"},"joe":{"xterm":"Enable full xterm clipboard support"},"latexila":{"latexmk":"Install dev-tex/latexmk (used by default for the build tools)","rubber":"Install dev-tex/rubber (can be used for the build tools)"},"leafpad":{"emacs":"Enable Emacs key theme"},"mousepad":{"gtk3":"Use GTK+3 instead of GTK+2"},"nano":{"debug":"Enable debug messages and assert warnings. Note that these will all be sent straight to stderr rather than some logging facility.","justify":"Enable justify/unjustify functions for text formatting.","magic":"Add magic file support (sys-apps/file) to automatically detect appropriate syntax highlighting","minimal":"Disable all fancy features, including ones that otherwise have a dedicated USE flag (such as spelling)."},"ne":{"tinfo":"Link against libtinfo from sys-libs/ncurses"},"tea":{"aspell":"Enable spellchecking using app-text/aspell","hunspell":"Enable spellchecking using app-text/hunspell"},"vim":{"X":"Link console vim against X11 libraries to enable title and clipboard features in xterm","luajit":"Use dev-lang/luajit instead of dev-lang/lua","racket":"Enable support for Scheme using dev-lang/racket","vim-pager":"Install vimpager and vimmanpager links"},"vim-qt":{"luajit":"Use dev-lang/luajit instead of dev-lang/lua","racket":"Enable support for Scheme using dev-lang/racket"},"xemacs":{"athena":"Chooses the MIT Athena widget set","dnd":"Enables support for the x11-libs/dnd drag-n-drop library","eolconv":"Support detection and translation of newline conventions","pop":"Support POP for mail retrieval","xim":"Enable X11 XiM input method"},"xmlcopyeditor":{"guidexml":"Install GuideXML templates to work with Gentoo official docs"},"zile":{"valgrind":"Enable usage of dev-util/valgrind in tests"}},"app-emacs":{"anything":{"extensions":"Install optional extensions"},"auctex":{"preview-latex":"Use bundled preview-latex"},"bbdb":{"tex":"Install plain TeX support files","vm":"Add support for app-emacs/vm"},"calfw":{"howm":"Add support for the app-emacs/howm note-taking tool"},"company-mode":{"ropemacs":"Install backend for dev-python/ropemacs"},"emacs-common-gentoo":{"games":"Support shared score files for games"},"emhacks":{"jde":"Enable support for Java Development Environment"},"magit":{"contrib":"Install user-contributed files"},"org-mode":{"contrib":"Install user-contributed files","odt-schema":"Install non-free schema files for OpenDocument Text exporter"},"remember":{"bbdb":"Include support for app-emacs/bbdb","planner":"Include support for app-emacs/planner"},"slime":{"xref":"Install xref.lisp cross-referencing tool"},"vm":{"bbdb":"Include support for app-emacs/bbdb"},"wanderlust":{"bbdb":"Include support for app-emacs/bbdb"},"wikipedia-mode":{"outline-magic":"Enable support for outline-mode extensions (app-emacs/outline-magic)"}},"app-emulation":{"aranym":{"fullmmu":"Enable full 68040 MMU emulation","lilo":"Enable Linux-m68k loader","usbhost":"Enable NatFeat USB"},"bochs":{"3dnow":"Enable support for emulating 3DNow! instructions (incomplete)","avx":"Enable support for emulating Advanced Vector Extensions (AVX)","debugger":"Enable debugger (slows down emulation)","gdb":"Enable support for the remote GDB stub","x86-64":"Enable support for emulation of 64-bit CPUs"},"crossover-bin":{"capi":"Enable ISDN support via CAPI"},"docker":{"aufs":"Enables dependencies for the \"aufs\" graph driver, including necessary kernel flags.","btrfs":"Enables dependencies for the \"btrfs\" graph driver, including necessary kernel flags.","contrib":"Install additional contrib scripts and components.","device-mapper":"Enables dependencies for the \"devicemapper\" graph driver, including necessary kernel flags.","lxc":"Enables dependencies for the \"lxc\" execution driver.","overlay":"Enables dependencies for the \"overlay\" graph driver, including necessary kernel flags."},"dosemu":{"fluidsynth":"use media-sound/fluidsynth for MIDI emulation"},"e-uae":{"capslib":"Add CAPS library support","sdl-sound":"Use media-libs/sdl-sound for audio output"},"emul-linux-x86-baselibs":{"development":"Install pkgconfig files","kerberos":"Pull in virtual/krb5 if using USE=abi_x86_32. Disabling it is unsupported, use on your own responsibility. Irrelevant when using USE=-abi_x86_32.","ldap":"Pull in net-nds/openldap if using USE=abi_x86_32. Disabling it is unsupported, use on your own responsibility. Irrelevant when using USE=-abi_x86_32.","pam":"Pull in virtual/pam if using USE=abi_x86_32. Disabling it is unsupported, use on your own responsibility. Irrelevant when using USE=-abi_x86_32."},"emul-linux-x86-cpplibs":{"development":"Install pkgconfig files"},"emul-linux-x86-db":{"development":"Install pkgconfig files"},"emul-linux-x86-gstplugins":{"development":"Install pkgconfig files"},"emul-linux-x86-gtklibs":{"development":"Install pkgconfig files"},"emul-linux-x86-gtkmmlibs":{"development":"Install pkgconfig files"},"emul-linux-x86-java":{"pax_kernel":"Use paxctl to mark the JVM binaries."},"emul-linux-x86-jna":{"development":"Install pkgconfig files"},"emul-linux-x86-medialibs":{"development":"Install pkgconfig files"},"emul-linux-x86-motif":{"development":"Install pkgconfig files"},"emul-linux-x86-opengl":{"development":"Install pkgconfig files"},"emul-linux-x86-qtlibs":{"development":"Install pkgconfig files","gtkstyle":"Build a Qt style called GTK+ that mimics the active GTK+ theme"},"emul-linux-x86-sdl":{"development":"Install pkgconfig files"},"emul-linux-x86-soundlibs":{"development":"Install pkgconfig files","pulseaudio":"Pull in media-sound/pulseaudio if using USE=abi_x86_32. Disabling it is unsupported, use on your own responsibility. Irrelevant when using USE=-abi_x86_32."},"emul-linux-x86-xlibs":{"development":"Install pkgconfig files"},"free42":{"alsa":"Adds support for Advanced Linux Sound Architecture"},"fuse-utils":{"gcrypt":"Use dev-libs/libgcrypt for low-level crypto of some features, including logfiles."},"ganeti":{"drbd":"Enable DRBD support","filestorage":"Enable File Storage","haskell-daemons":"Build haskell daemons instead of python","htools":"Enable htools support","kvm":"Enable KVM support","lxc":"Enable Linux Countainers support","monitoring":"Enable the ganeti monitoring daemon","multiple-users":"Enable support for running VMs as different users.","rbd":"Enable rados block device support via sys-cluster/ceph","xen":"Enable Xen support"},"libguestfs":{"erlang":"Build Erlang bindings","fuse":"Enable image mount support via fuse","inspect-icons":"Use media-gfx/icoutilsfor acces icon file in image and inspect it","introspection":"Use dev-libs/gobject-introspection for introspection","systemtap":"Use dev-util/systemtap to inspect VM via \"probes\" way"},"libspectrum":{"gcrypt":"Use dev-libs/libgcrypt for low-level crypto of some features, including logfiles."},"libvirt":{"audit":"support sys-process/audit","firewalld":"DBus interface to iptables/ebtables allowing for better runtime management of your firewall.","fuse":"Allow LXC to use sys-fs/fuse for mount points","glusterfs":"Enable GlusterFS support via sys-cluster/glusterfs","iscsi":"Allow using an iSCSI remote storage server as pool for disk image storage","libvirtd":"Builds the libvirtd daemon as well as the client utilities instead of just the client utilities","lvm":"Allow using the Logical Volume Manager (sys-apps/lvm2) as pool for disk image storage","lxc":"Support management of Linux Containers virtualisation (app-emulation/lxc)","macvtap":"Support for MAC-based TAP (macvlan/macvtap). For networking instead of the normal TUN/TAP. It has its advantages and disadvantages. macvtap support requires very new kernels and is currently evolving. Support for this is experimental at best.","nfs":"Allow using Network File System mounts as pool for disk image storage","numa":"Use NUMA for memory segmenting via sys-process/numactl and sys-process/numad","openvz":"Support management of OpenVZ virtualisation (see sys-kernel/openvz-sources)","parted":"Allow using real disk partitions as pool for disk image storage, using sys-block/parted to create, resize and delete them.","pcap":"Support auto learning IP addreses for routing","phyp":"Support IBM HMC / IVM hypervisor via PHYP protocol","qemu":"Support management of QEMU virtualisation (app-emulation/qemu)","rbd":"Enable rados block device support via sys-cluster/ceph","uml":"Support management of User Mode Linux virtualisation","vepa":"Virtual Ethernet Port Aggregator (VEPA) / 802.1Qbg support. Relies on macvtap support.","virt-network":"Enable virtual networking (NAT) support for guests. Includes all the dependencies for NATed network mode. Effectively any network setup that relies on libvirt to setup and configure network interfaces on your host. This can include bridged and routed networks ONLY if you are allowing libvirt to create and manage the underlying devices for you. In some cases this requires enabling the 'netcf' USE flag (currently unavailable).","virtualbox":"Support management of VirtualBox virtualisation (one of app-emulation/virtualbox or app-emulation/virtualbox-ose)","wireshark-plugins":"Build the net-analyzer/wireshark plugin for the Libvirt RPC protocol","xen":"Support management of Xen virtualisation (app-emulation/xen)"},"libvirt-glib":{"introspection":"Use dev-libs/gobject-introspection for introspection","vala":"Enable bindings for dev-lang/vala"},"lxc":{"cgmanager":"Enable support for cgroup management using app-admin/cgmanager"},"open-vm-tools":{"doc":"Generate API documentation","fuse":"Build vmblock-fuse in favor of FUSE based blocking mechanism for DnD","pic":"Force shared libraries to be built as PIC"},"open-vm-tools-kmod":{"vmhgfs":"Build the vmhgfs module for file sharing support with the host"},"playonlinux":{"winbind":"Enables support for the winbind auth daemon"},"q4wine":{"gnome":"Use the gksu sudo GUI for managing the devices","icoutils":"Enable icoutils support","kde":"Use the kdesu sudo GUI for managing the devices","wineappdb":"Enable Win AppDB browser subsystem"},"qemu":{"accessibility":"Adds support for braille displays using brltty","aio":"Enables support for Linux's Async IO","alsa":"Enable alsa output for sound emulation","curl":"Support ISOs / -cdrom directives vis HTTP or HTTPS.","fdt":"Enables firmware device tree support","glusterfs":"Enables GlusterFS cluster fileystem via sys-cluster/glusterfs","iscsi":"Enable direct iSCSI support via net-libs/libiscsi instead of indirectly via the Linux block layer that sys-block/open-iscsi does.","jpeg":"Enable jpeg image support for the VNC console server","ncurses":"Enable the ncurses-based console","nfs":"Enable NFS support","numa":"Enable NUMA support","pin-upstream-blobs":"Pin the versions of BIOS firmware to the version included in the upstream release. This is needed to sanely support migration/suspend/resume/snapshotting/etc... of instances. When the blobs are different, random corruption/bugs/crashes/etc... may be observed.","png":"Enable png image support for the VNC console server","pulseaudio":"Enable pulseaudio output for sound emulation","rbd":"Enable rados block device backend support, see http://ceph.newdream.net/wiki/QEMU-RBD","sdl":"Enable the SDL-based console","snappy":"Enable support for snappy compression","spice":"Enable Spice protocol support via app-emulation/spice","ssh":"Enable SSH based block device support via net-libs/libssh2","static":"Enables both 'static-softmmu' and 'static-user'","static-softmmu":"Builds the Software MMU (system) targets as static binaries","static-user":"Build the User targets as static binaries","systemtap":"Enable SystemTAP/DTrace tracing","tci":"Enable the TCG Interpreter which can speed up or slowdown workloads depending on the host and guest CPUs being emulated. In the future it will be a runtime option but for now its compile time.","tls":"Enable TLS support for the VNC console server. For 1.4 and newer this also enables WebSocket support. For 2.0 and newer this also enables disk quorum support.","usb":"Enable USB passthrough via dev-libs/libusb","usbredir":"Use sys-apps/usbredir to redirect USB devices to another machine over TCP","uuid":"Enable UUID support in the vdi block driver","vde":"Enable VDE-based networking","vhost-net":"Enable accelerated networking using vhost-net, see http://www.linux-kvm.org/page/VhostNet","virtfs":"Enable VirtFS via virtio-9p-pci / fsdev. See http://wiki.qemu.org/Documentation/9psetup","xattr":"Add support for getting and setting POSIX extended attributes, through sys-apps/attr. Requisite for the virtfs backend.","xen":"Enables support for Xen backends","xfs":"Support xfsctl() notification and syncing for XFS backed virtual disks."},"spice":{"client":"Build the spicec client app (does not reduce dependencies at the moment).","gui":"Build some GUI components (inside the guest window).","smartcard":"Enable smartcard remoting using app-emulation/libcacard"},"spice-vdagent":{"consolekit":"Use sys-auth/consolekit to determine the master vdagentd in case of multiple running vdagentds (highly recommended)"},"uae":{"scsi":"Enable the uaescsi.device"},"vice":{"ethernet":"Enable ethernet emulation","fullscreen":"Enable the ability to run fullscreen","gtk3":"Use GTK+3 instead of GTK+2","memmap":"Enable extra monitor features","vte":"Enable support for x11-libs/vte in the GTK+ interface","xrandr":"Enable support for the X xrandr extension"},"virt-manager":{"policykit":"Enables sys-auth/polkit authentication support, required when using app-emulation/libvirt with PolicyKit authentication","sasl":"Depend on the proper libraries needed to connect to SASL-enabled libvirtd instances (e.g. Kerberos-protected instances)."},"virt-viewer":{"spice":"Support connecting to SPICE-enabled virtual machines.","vnc":"Support connecting to VNC-enabled virtual machines."},"virt-what":{"dmi":"Use sys-apps/dmidecode to read firmware data"},"virtualbox":{"additions":"Install Guest System Tools ISO","extensions":"Install extension module packages","headless":"Build without any graphic frontend","sdk":"Enable building of SDK","udev":"Controls installation of special USB udev rules.","vboxwebsrv":"Build and install the VirtualBox webservice"},"virtualbox-bin":{"additions":"Install Guest System Tools ISO","chm":"Install kchmviewer binary to enable online help (in MS CHM format)","headless":"Install without any graphic frontend","rdesktop-vrdp":"Install the rdesktop client integration","sdk":"Enable building of SDK","vboxwebsrv":"Install the VirtualBox webservice"},"virtualbox-modules":{"pax_kernel":"Apply patch needed for pax enabled kernels"},"vmware-modules":{"pax_kernel":"Apply patch needed for pax enabled kernels","vmci":"Build the Virtual Machine Communication Interface module; disable this if you want to use the module from the mainline kernel","vsock":"Build the VMware VMCI transport for Virtual Sockets; disable this if you want to use the module from the mainline kernel"},"vmware-player":{"vmware-tools":"Install VMware Tools images"},"vmware-workstation":{"ovftool":"Install OVF tool.","server":"Install VMware Workstation Server component.","vix":"Install VIX. The VIX API allows you to write programs and scripts that automate virtual machine operations, and run programs or manipulate files within guest operating systems.","vmware-tools":"Install VMware Tools images"},"vov":{"gprof":"build with profiling support"},"wine":{"capi":"Enable ISDN support via CAPI","custom-cflags":"Bypass strip-flags; use at your own peril","dos":"Pull in games-emulation/dosbox to run DOS applications","gecko":"Add support for the Gecko engine when using iexplore","mono":"Add support for .NET using Wine's Mono add-on","netapi":"Use libnetapi from net-fs/samba to support Windows networks in netapi32.dll","opencl":"Enable OpenCL support","osmesa":"Add support for OpenGL in bitmaps using libOSMesa","pcap":"Support packet capture software (e.g. wireshark)","perl":"Install helpers written in perl (winedump/winemaker)","pipelight":"Apply unofficial Wine-Staging patches for Pipelight/Silverlight support","prelink":"Run prelink on DLLs during build -- do not disable if you do not know what this means as it can break things at runtime","realtime":"Pull in sys-auth/rtkit for low-latency pulseaudio support","run-exes":"Use Wine to open and run .EXE and .MSI files","s3tc":"Pull in media-libs/libtxc_dxtn for DXTn texture compression, needed for many games","samba":"Add support for NTLM auth. see http://wiki.winehq.org/NtlmAuthSetupGuide and http://wiki.winehq.org/NtlmSigningAndSealing","staging":"Apply unofficial Wine-Staging patches for advanced feature support that haven't made it into upstream Wine yet","win32":"Build a 32bit version of Wine (won't run Win64 binaries)","win64":"Build a 64bit version of Wine (won't run Win32 binaries)"},"winetricks":{"rar":"Pull in app-arch/unrar for extraction of rar-compressed game files"},"x48":{"readline":"Enables support for libreadline"},"xe-guest-utilities":{"xenstore":"Use xenstore binaries bundled by Citrix instead of building app-emulation/xen-tools"},"xen":{"efi":"Adds efi boot support, requires LDFLAG -melf_x86_64 for amd64","flask":"Enable the Flask XSM module from NSA","pae":"Enable support for PAE kernels (usually x86-32 with >4GB memory)","xsm":"Enable the Xen Security Modules (XSM)"},"xen-tools":{"api":"Build the C libxenapi bindings","flask":"Enable the Flask XSM module from NSA","hvm":"Enable support for hardware based virtualization (VT-x,AMD-v)","ocaml":"Enable support for the ocaml language","ovmf":"Enable support to boot UEFI guest vm, needed by hvm","pam":"Enable pam support","pygrub":"Install the pygrub boot loader","qemu":"Enable IOEMU support via the use of qemu-dm","screen":"Enable support for running domain U console in an app-misc/screen session","system-qemu":"Using app-emulation/qemu instead of the bundled one","system-seabios":"Using sys-firmware/seabios instead of the bundled one"},"xtrs":{"ls-dos":"Install LS-DOS disk images for Model 4P"}},"app-forensics":{"afflib":{"fuse":"Enable extra fuse thingies","qemu":"Enable qemu stuff","s3":"Enable support for Amazon S3"},"aide":{"audit":"Enable support for sys-process/audit","prelink":"Enable support for sys-devel/prelink"},"chkrootkit":{"cron":"Install cron script for weekly rootkit scans"},"libewf":{"bfio":"Enables libbfio for chaining file in file handling","ewf":"Enables the v1 API","fuse":"Enable fuse support for ewfmount","rawio":"Enables raw IO handling","uuid":"Enable UUID support in the ewftools"},"openscap":{"gconf":"Build the gconf independant probes","nss":"Prefer NSS over libgcrypt as the crypto engine","rpm":"Compiles the RPM probes","sce":"Enables Script Check Engine (SCE) support","sql":"Build the sql independant probes"},"ovaldi":{"rpm":"Enable the RPM probes"},"sleuthkit":{"aff":"Enable extra aff formats","ewf":"Enable libewf support"}},"app-i18n":{"anthy":{"canna-2ch":"Enable support for app-dicts/canna-2ch"},"fcitx":{"autostart":"Enable xdg-compatible autostart of fcitx","enchant":"Use app-text/enchant for text prediction","gtk":"Install GTK2 IM module","gtk3":"Install GTK3 IM module","introspection":"Enable GObject Introspection","opencc":"Enable OpenCC for Chinese Transform","pango":"Enable support for x11-libs/pango","qt4":"Install Qt4 IM module","snooper":"Enable Key Snooper for GTK app","table":"Enable Table IM"},"fcitx-configtool":{"gtk3":"Use GTK+3 instead of 2"},"fcitx-libpinyin":{"dictmanager":"Enable dictionary manager. Requires dev-qt/qtwebkit."},"ibus":{"deprecated":"install the deprecated ibus python library","gconf":"Enable support for gnome-base/gconf","gtk3":"Enable support for gtk+3","introspection":"Use dev-libs/gobject-introspection for introspection","vala":"Enable support for dev-lang/vala"},"ibus-anthy":{"deprecated":"Install deprecated pygtk2 library"},"ibus-handwrite":{"zinnia":"Build with app-i18n/zinnia engine."},"ibus-libpinyin":{"boost":"Compile against dev-libs/boost libraries","opencc":"Enable support for app-i18n/opencc"},"ibus-m17n":{"gtk":"Build the preference interfaces, based on x11-libs/gtk+ (GTK+ 2)."},"ibus-pinyin":{"boost":"Compile against dev-libs/boost libraries","opencc":"Enable support for app-i18n/opencc"},"ibus-unikey":{"gtk3":"Enable support for gtk+3"},"im-ja":{"anthy":"Support for Anthy input method","skk":"Support for SKK input method"},"imsettings":{"gconf":"Enable GConf support","gtk3":"Enable support for x11-libs/gtk+:3","xfconf":"Enable integration in the Xfce desktop environment with xfce-base/xfconf"},"kimera":{"anthy":"Support for Anthy input method"},"libskk":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"libtomoe-gtk":{"gucharmap":"Enable gucharmap dictionary plugin"},"mozc":{"fcitx":"Enable support for app-i18n/fcitx","ibus":"Enable support for app-i18n/ibus","renderer":"Enable native candidate window.","scim":"Enable support for app-i18n/scim"},"pyzy":{"boost":"Enable support for dev-libs/boost","doc":"Enable support for documents","opencc":"Use app-i18n/opencc for input"},"scim":{"gtk3":"Enable support for x11-libs/gtk+:3"},"scim-anthy":{"gtk3":"Enable support for x11-libs/gtk+:3","kasumi":"Use Anthy dictionary maintenance tool (app-dicts/kasumi)"},"scim-tomoe":{"gucharmap":"Enable gucharmap dictionary plugin"},"tomoe":{"hyperestraier":"Enable support for app-text/hyperestraier"},"uim":{"anthy":"Enable support for app-i18n/anthy input method","eb":"Enable support for dev-libs/eb","gtk3":"Enable support for x11-libs/gtk+:3","skk":"Enable support for app-i18n/skk-jisyo"}},"app-laptop":{"hdapsd":{"libconfig":"Require dev-libs/libconfig to allow the daemon to read a configuration file at startup"},"ibam":{"gkrellm":"Enable building of app-admin/gkrellm module"},"laptop-mode-tools":{"scsi":"Adds dependency on sdparm to control non-SATA SCSI drivers"},"pbbuttonsd":{"ibam":"Enable support for Intelligent Battery Monitoring","macbook":"Enable support for the Macbook and Macbook Pro"},"prey":{"alarm":"Module for playing an audio file","alert":"Display a warning message when the computer seems to be stolen\"","geo":"Module for retrieving the physical location of the stolen computer","lock":"Lock stolen computer","network":"Get network information (active connections, traceroute) from stolen computer","secure":"Delete or hide sensitive user data","session":"Get screenshots from user session","userpriv":"Create a prey user group so regular users can access and modify the prey configuration. Use it with caution","webcam":"Use computer's webcam to take screenshots of the thief"},"thinkfan":{"atasmart":"include libatasmart support to get disc temperature"},"tp_smapi":{"hdaps":"Install a compatible HDAPS module"}},"app-leechcraft":{"lc-aggregator":{"webaccess":"Enables web interface submodule for Aggregator"},"lc-azoth":{"acetamide":"Build Acetamide, the IRC protocol support","adiumstyles":"Build support for Adium styles","astrality":"Build Astrality, support for protocols provided by Telepathy","autoidler":"Build support for automatic status changing according to user idle time","autopaste":"Build Autopaste for pasting long texts to pastebins","birthdaynotifier":"Build Birthday Notifier for you to not forget about birthdays of your contacts.","chathistory":"Build ChatHistory which stories chat history","depester":"Build Depester which enables to ignore MUC participants","embedmedia":"Build EmbedMedia for embedding flash videos and images directly into chat windows","herbicide":"Build Herbicide, a basic antispam plugin","hili":"Build HiLi which allows to customize highlight settings in MUCs","isterique":"Build Isterique plugin for neutralizing excessive caps lock usage","juick":"Build plugin for the Juick.com microblogging service","keeso":"Build plugin for changing text into SoMEtHInG lIKe THiS","lastseen":"Build plugin for client-side recording of the last online/available time","media":"Enable media calls","metacontacts":"Build plugin for metacontacts support","murm":"Build Murm, the VKontakte messaging support via their native API (instead of XMPP)","nativeemoticons":"Build support for native Azoth's emoticons packs","otroid":"Build OTRoid, plugin for the Off-the-Record deniable encryption system","p100q":"Build p100q, plugin for psto.net microblogging service","sarin":"Build Sarin, Tox protocol support module. Please add mva overlay to use net-libs/tox","shx":"Build shell command executor plugin","standardstyles":"Build support for standard Azoth styles engine","vader":"Bulid Vader, the MRIM (Mail.Ru Agent) protocol support plugin","velvetbird":"Build support for protocols provided by libpurple","woodpecker":"Build Woodpecker, the Twitter client plugin","xtazy":"Build Xtazy for publishing currently playing tune"},"lc-blasq":{"deathnote":"Support LiveJournal FotoBilder service","rappor":"Support VKontakte service","spegnersi":"Support Flickr service","vangog":"Support Picasa service"},"lc-blogique":{"hestia":"Allows one to keep a local blog","metida":"Support for the LiveJournal blogging platform"},"lc-core":{"qwt":"Support for QML plotting item through x11-libs/qwt"},"lc-gmailnotifier":{"notify":"Pull in a plugin to show notifications from GMail Notiifer","quark":"Pull in a plugin to show GMail Notifier's quark"},"lc-liznoo":{"systemd":"Pull in correct UPower dependencies for systemd and non-systemd users."},"lc-lmp":{"fradj":"Build FrAdj, the equalizer effect module","graffiti":"Build media tags editor plugin","guess":"Enable tags encoding guessing via the libguess library","mp3tunes":"Build plugin for supporting the mp3tunes.com music locker service","mpris":"Enable MPRIS support","potorchu":"Enable the projectM-based visualization effects module for LMP"},"lc-monocle":{"fb2":"Enable support for FictionBook format","mobi":"Enable support for MOBI format","spectre":"Enable PostScript backend for Monocle using the app-text/libspectre"},"lc-musiczombie":{"acoustid":"Use media-libs/chromaprint for acoustic fingerprinting"},"lc-netstoremanager":{"googledrive":"Support Google Drive storage backend","yandexdisk":"Support Yandex.Disk storage backend"},"lc-poshuku":{"autosearch":"Provide automatic search suggestions for Poshuku.","cleanweb":"Build CleanWeb for ad blocking compatible with Firefox's AdBlock+.","dcac":"Build color inverter module providing a night mode.","fatape":"Build FatApe, GreaseMonkey userscripts support layer.","filescheme":"Build FileScheme for accessing local URLs.","fua":"Build FUA for faking user agents for different hosts.","keywords":"Build Keywords for adjusting search shortcuts.","onlinebookmarks":"Build OnlineBookmarks for syncing bookmarks with social bookmarking services like Read It Later.","pcre":"Use dev-libs/libpcre for rules matching in CleanWeb instead of slower QRegExp.","qrd":"Build module for displaying the QR code of a web page.","wyfv":"Build WYFV for replacing Flash-based video players on some sites."},"leechcraft-meta":{"de":"Install components, that allow using Leechcraft as Desktop Environment"}},"app-misc":{"anki":{"recording":"Enable support for audio recording","sound":"Enable support for adding sound to cards"},"binwalk":{"graph":"Enable support for generating entropy graphs"},"brewtarget":{"phonon":"Enable sound support via media-libs/phonon or dev-qt/qtphonon"},"byobu":{"screen":"Use app-misc/screen as the default backend"},"ca-certificates":{"cacert":"Include root certs from CAcert (http://http://www.cacert.org/) and Software in the Public Interest (http://www.spi-inc.org/)"},"ddccontrol":{"pci":"enable direct PCI memory access (the setuid ddcpci util)"},"digitemp":{"ds2490":"Build support for the ds2490 sensor","ds9097":"Build support for the ds9097 sensor","ds9097u":"Build support for the ds9097u sensor"},"emelfm2":{"ansi":"Add support for ANSI escape sequences","gtk3":"Use x11-libs/gtk:3 instead of x11-libs/gtk:2"},"freemind":{"groovy":"Build plugin for scripting via Groovy","latex":"Build plugin for inserting mathematical formulas in LaTeX syntax","pdf":"Build plugin for exporting mindmaps to SVG and PDF","svg":"Build plugin for exporting mindmaps to SVG and PDF"},"gcstar":{"stats":"Enable statistics reporting","tellico":"Enable support for kde-misc/tellico files"},"geneweb":{"ocamlopt":"Enable ocamlopt support (dev-lang/ocaml native code compiler)"},"geoclue":{"geonames":"Install geonames.org provider","gsmloc":"Install GSM location provider","gtk":"Install gtk-based geoclue-test-gui","hostip":"Install hostip.info provder","manual":"Install manual provider","modemmanager":"Enable geolocation through 3G or GPS enabled hardware through net-misc/modemmanager.","nominatim":"Install openstreetmap.org provider","plazes":"Install plazes.com provider","skyhook":"Install skyhookwireless.com provider","yahoo-geo":"Install Yahoo geolocation provider"},"gourmet":{"i18n":">app-misc/gourmet-0.16 Enable support for i18n through elib.intl","ipython":">app-misc/gourmet-0.16 Enable support for the interactive Python console plugin","pdf":"Enable export to PDF","print":">app-misc/gourmet-0.16 Enable pretty Python printing","spell":">app-misc/gourmet-0.16 Enable support for the spell check plugin","web":">app-misc/gourmet-0.16 Enable support for the web import plugin"},"gramps":{"reports":"All external software that is needed for graphical reports will be installed","webkit":"Use Webkit-based rendering for geographical data view."},"graphlcd-base":{"g15":"Add support for app-misc/g15daemon driver (e.g. Logitech G15 Keybord)"},"lcd-stuff":{"mpd":"Add support for display of mpd controlled music (media-libs/libmpd)"},"lcd4linux":{"mpd":"Add support for display of mpd controlled music (media-libs/libmpd)"},"lcdproc":{"ftdi":"Enable support for FTDI connections in some selected LCD_DEVICES (currently hd44780)","hid":"Enable HID support using libhid","irman":"Enable support for IRMan (media-libs/libirman)","lcd_devices_sdeclcd":"Enable support for VLSYS M428 display","lcd_devices_vlsys_m428":"Enable support for VLSYS M428 display","nfs":"Adds support for NFS file system","seamless-hbars":"Try to avoid gaps in horizontal bars"},"linux-logo":{"nls":"Add Native Language Support (using gettext - GNU locale utilities)"},"lirc":{"hardware-carrier":"The transmitter device generates its clock signal in hardware","transmitter":"Add transmitter support to some lirc-drivers (e.g. serial)"},"mc":{"edit":"Compile and install the mcedit application","mclib":"Compile and install the libmc.so shared library","sftp":"Add support for sftp (uses net-libs/libssh2 for it).","slang":"Use sys-libs/slang instead of sys-libs/ncurses.","xdg":"Toggles mc's config dir location. Enable for $XDG_CONFIG_HOME/mc, disable for $HOME/.mc"},"muttprint":{"doc":"Builds documentation"},"note":{"general":"Add support for ascii flatfile backend","text":"Add support for text backend"},"pax-utils":{"python":"Install a more powerful/faster version of lddtree"},"recoll":{"camelcase":"Enable indexing for camelCase sentences and words","chm":"Index chm files","dvi":"Index dvi files","ics":"Index iCalendar files","info":"Index GNU info files","inotify":"Use the Linux Kernel notification subsystem for monitoring file alterations in realtime","lyx":"Index Latex lyx files","msdoc":"Index Microsoft Word documents","msppt":"Index Microsoft PowerPoint documents","msxls":"Index Microsoft Excel documents","pdf":"Index PDF documents","rtf":"Index Microsoft RTF documents","session":"Stop monitoring file alterations when X11 session terminates","sound":"Index audio files","tex":"Index TeX files","wordperfect":"Index WordPerfect documents","xml":"Index several XML-based formats (Abiword, FictionBook, Kword, Office OpenXML, OpenDocument, SVG)"},"rlwrap":{"debug":"Enable debug"},"roadnav":{"festival":"Enable support for app-accessibility/festival","openstreetmap":"Enable openstreetmap support","scripting":"Enable scripting support"},"screen":{"multiuser":"Enable multiuser support (by setting correct permissions)","nethack":"Express error messages in nethack style"},"screenfetch":{"X":"Use the media-gfx/scrot package to take screenshots"},"sphinx":{"id64":"use 64-bit document and word IDs","stemmer":"Enable language stemming support"},"strigi":{"clucene":"Enable dev-cpp/clucene backend support.","inotify":"Enable support for inotify.","log":"Enables advanced logging through dev-libs/log4cxx."},"subsurface":{"linguas_da_DK":"Language support for da_DK.","linguas_de_CH":"Language support for de_CH.","linguas_gsw":"Language support for gsw.","linguas_hr_HR":"Language support for hr_HR."},"tablix":{"pvm":"Add support for parallel virtual machine (sys-cluster/pvm)"},"tasque":{"hiveminder":"Allows you to use http://www.hiveminder.com/ as your storage backend.","rememberthemilk":"Allows you to use http://www.rememberthemilk.com/ as your storage backend."},"towitoko":{"moneyplex":"Makes libtowitoko work for the moneyplex home banking software"},"tracker":{"cue":"Enable cue sheet parsing","firefox-bookmarks":"Install bookmark data miner plugin for www-client/firefox and www-client/firefox-bin","gsf":"Enable gnome-extra/libgsf based data extractor and for ODT.","iptc":"Enable extraction of IPTC data from pictures","iso":"Enable extraction of metadata from ISO disk images","miner-fs":"Enable tracker-miner-fs (required for filesystem indexing)","nautilus":"Enable tracker to integrate with gnome-base/nautilus by providing entries in its context menu","playlist":"Add support for playlists","thunderbird":"Install email data miner plugin for mail-client/thunderbird and mail-client/thunderbird-bin","xps":"Add support for XPS file format through app-text/libgxps."},"unfoo":{"minimal":"Do not install all support archive binaries"},"vifm":{"X":"Add support for X11","compatibility":"Compatibility with previous versions of vifm","developer":"Enable features of interest to developers","extended-keys":"Support for extended keys (arrows, home etc)","gtk":"Use gtk+ to determine mimetypes","magic":"Use libmagic to determine mimetypes","vim":"Install the vifm vim plugin and vim-compatible documentation","vim-plugin":"Install the vifm vim plugin","vim-syntax":"Pulls in related vim syntax scripts"},"worker":{"avfs":"Enable support for sys-fs/avfs","magic":"Add magic file support from sys-apps/file to automatically detect file types"},"workrave":{"distribution":"Enable networking. See http://www.workrave.org/features/","mate":"Add support for MATE panel","xfce":"Add support for XFCE panel"},"zygrib":{"maps":"Installs additional GSHHS maps for high resolution coastline data and cities"}},"app-mobilephone":{"gammu":{"irda":"Enables infrared support"},"gnokii":{"ical":"Enable support for dev-libs/libical","irda":"Enable infrared support","pcsc-lite":"Enable smartcard support with sys-apps/pcsc-lite","sms":"Enable SMS support (build smsd)"},"obexd":{"nokia":"Add support for Nokia backup plugin","server":"Enables server installation, it's incompatible with obex-data-server provided one"},"smstools":{"stats":"Enable statistic reporting"},"yaps":{"capi":"Enable CAPI support"}},"app-office":{"abiword":{"collab":"Enable collaborative editing plugin","goffice":"Enable goffice plugin","grammar":"Enable grammar checking via dev-libs/link-grammar","map":"Enable world map support through media-libs/libchamplain","math":"Enable support for x11-libs/gtkmathview","ots":"Enable Text Summarizer plugin","plugins":"Enable plugins build (see http://www.abisource.com/wiki/PluginMatrix for more information). If your file cannot be opened due lack of support, try enabling this.","redland":"Enables support redland and raptor libs.","thesaurus":"Enable thesaurus support","wordperfect":"Enable wordperfect file support via app-text/libwpd"},"akonadi-server":{"soprano":"Enable deprecated dev-libs/soprano, needed for nepomuk search"},"calligra":{"attica":"Get hot stuff with dev-libs/libattica","eigen":"Enable dev-cpp/eigen mathematical templates support","glew":"Enable media-libs/glew opengl extension library support","glib":"Enable support for C library routines from dev-libs/glib","gsf":"Enable support for ODT structures extraction via gnome-extra/libgsf","import-filter":"Enable support for various import filter file formats like WordPerfect, Visio and Apple Keynote","kdcraw":"Enable support for KDE image manipulating interface via kde-base/libkdcraw","kdepim":"Enable support for KDEPIM resources integration","marble":"Enable displaying of maps using Marble","nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)","okular":"Enable bindings for kde-base/okular","spacenav":"Enable support for the 3Dconnexion spacenav input device via dev-libs/libspnav","vc":"Enable support for dev-libs/vc, could be a significant speed boost on krita","xbase":"Enable support for xbase compatible database formats"},"glabels":{"barcode":"Enable barcode support through external libraries."},"gnucash":{"chipcard":"Enable support for chipcard reading and processing.","hbci":"Enable HBCI support, for connecting to some internet banks","quotes":"Enable Online Stock Quote retrieval"},"gnumeric":{"libgda":"Enable database support through gnome-extra/libgda.","perl":"Enable perl plugin loader.","python":"Enable python plugin loader."},"kmymoney":{"hbci":"Enable HBCI support using net-libs/aqbanking","quotes":"Enable Online Stock Quote retrieval"},"libreoffice":{"coinmp":"Use sci-libs/coinor-mp as alternative solver","collada":"Enable Collada for rendering 3D models stored in *.dae and *.kmz format","gltf":"Use media-libs/libgltf for inserting 3D models in the glTF format into presentations","gtk3":"Enable highly experimental gtk3 frontend","jemalloc":"Use dev-libs/jemalloc for allocations","odk":"Build the Office Development Kit","telepathy":"Enable document colaboration features using telepathy communication framework.","vlc":"Use media-video/vlc for video embedding"},"libreoffice-l10n":{"linguas_ca_valencia":"Catalan locale (Valencia)","linguas_kmr_Latn":"kmr_Latn localization","linguas_sid":"sid localization","linguas_sr_Latn":"Serbian (Latin) locale","offlinehelp":"Install help files locally instead of using the LibreOffice Wiki"},"lyx":{"aspell":"Add support for aspell spellchecking","dia":"Add support for diagrams (app-office/dia)","docbook":"Add support for docbook export","dot":"Add support for DOT import (media-gfx/graphviz)","enchant":"Add support for enchant spellchecking wrapper (both aspell and hunspell can be used by LyX).","gnumeric":"Add support for importing Gnumeric/OpenOffice/MS Excel spreadsheets into LyX.","html":"Add support for HTML import","hunspell":"Add support for spellchecking based on hunspell and reuse system-wide OpenOffice dictionaries. This also enable thesaurus dictionaries not accessible via aspell.","monolithic-build":"This should speed up compilation significantly when you have enough RAM (> 600 MB)","rcs":"Add support for revision control via dev-vcs/rcs","rtf":"Add support for RTF import/export packages"},"scribus":{"graphicsmagick":"Add support for media-gfx/graphicsmagick","hunspell":"Enable support for spell checking with app-text/hunspell","linguas_cs_CZ":"Language support for cs_CZ","linguas_da_DK":"Language support for da_DK","linguas_de_1901":"Language support for de_1901","linguas_de_CH":"Language support for de_CH","linguas_en_AU":"Language support for en_AU","linguas_lt_LT":"Language support for lt_LT","linguas_pl_PL":"Language support for pl_PL","linguas_sa":"Language support for sa","linguas_sk_SK":"Language support for sk_SK","linguas_th_TH":"Language support for th_TH","minimal":"Don't install headers (only required for e.g. plug-in developers)","osg":"3D redering via dev-games/openscenegraph","poppler":"Native pdf import","scripts":"Install the scripts","templates":"Document tamplates","tk":"Install tk based scripts e.g. FontSample.py"},"texmacs":{"netpbm":"Add support for media-libs/netpbm","pdf":"Add the experimental native pdf export"},"texstudio":{"video":"Use phonon for video embedding"}},"app-pda":{"barry":{"boost":"Enable boost support","desktop":"Install the GUI desktop control panel","gui":"Install the GUI backup tool","opensync":"Install the barry-sync plugin for OpenSync 0.22"},"gtkpod":{"clutter":"Enable clutter support for displaying coverart","webkit":"Enable webkit support for finding coverart"},"libopensync-plugin-irmc":{"irda":"Enable infrared support"},"libopensync-plugin-syncml":{"http":"Enable http transports","obex":"Enable obex transports"},"libsyncml":{"http":"Enable http transports","obex":"Enable obex transports"},"synce-sync-engine":{"opensync":"Enable OpenSync (app-pda/libopensync) python plug-in"}},"app-portage":{"conf-update":{"colordiff":"Use colors when displaying diffs (app-misc/colordiff)"},"eix":{"debug":"Build with upstream's CXXFLAGS/LDFLAGS for debugging support; not recommended for normal use.","dep":"Make DEP=true the default which enables support for {,R,P}DEPEND but requires roughly double disk and memory.","doc":"Create description of the eix cache file additionally in html format","optimization":"Accept upstream's choices for CXXFLAGS/LDFLAGS for optimization. Absense of this USE flag does not strip user's *FLAGS","security":"This adds some checks which can prevent certain exploits if e.g. the eix code has a bug. If you use the hardened toolchain, using this flag does not increase security and can even lead to problems.","sqlite":"Compile in support for portage's sqlite backend; to actually use it you need additional configuration of portage and eix","strong-optimization":"Adds several more agressive CXXFLAGS/LDFLAGS for optimization like graphite (if available). May cause trouble with some buggy compiler versions. Absense of this USE flag does not strip user's *FLAGS","strong-security":"Add many checks to prevent exploits if eix code has a bug. This will slow down eix considerably. Use only if you are paranoid or have reasons to suspect a bug.","swap-remote":"Swap role of remote addresses in eix-remote, making the data from gpo.zugaina.org the first choice.","tools":"Create separate binary for script helper tools; useful if they are called extremely often"},"layman":{"bazaar":"Support dev-vcs/bzr based overlays","cvs":"Support dev-vcs/cvs based overlays","darcs":"Support dev-vcs/darcs based overlays","g-sorcery":"Support app-portage/g-sorcery based overlays","git":"Support dev-vcs/git based overlays","gpg":"Support app-crypt/gnupg signed overlays lists and manifests","mercurial":"Support dev-vcs/mercurial based overlays","squashfs":"Support mounting squashfs image overlays locally read-only","subversion":"Support dev-vcs/subversion based overlays","sync-plugin-portage":"Install the sys-apps/portage sync module"},"pfl":{"network-cron":"Adds a cron job which does a weekly submit of the package database"},"tatt":{"templates":"Install template scripts to be used with tatt"}},"app-shells":{"bash":{"bashlogger":"Log ALL commands typed into bash; should ONLY be used in restricted environments such as honeypots","mem-scramble":"Build with custom malloc/free overwriting allocated/freed memory","net":"Enable /dev/tcp/host/port redirection","plugins":"Add support for loading builtins at runtime via 'enable'"},"pdsh":{"rsh":"This allows the use of rsh (remote shell) and rcp (remote copy) for authoring websites. sftp is a much more secure protocol and is preferred."},"scsh-install-lib":{"scsh":"Use a non-FHS directory layout"},"shish":{"diet":"Use dev-libs/dietlibc"},"tcsh":{"catalogs":"Add support for NLS catalogs"}},"app-text":{"acroread":{"html":"HTML support and help reading capability (only for x86)."},"asciidoc":{"highlight":"Enable source code highlighting"},"atril":{"caja":"Enable property page extension in mate-base/mate-file-manager","dvi":"Enable build-in DVI viewer","ps":"Enable build-in postscript viewer","t1lib":"Enable the Type-1 fonts for the build-in DVI viewer (media-libs/t1lib)","xps":"Enable XPS viewer using app-text/libxps"},"crm114":{"mew":"Add support for using the mewdecode mime decoder (app-emacs/mew)","mimencode":"Add support for using the mimencode mime (net-mail/metamail)","normalizemime":"Add support for using the normalizemime (mail-filter/normalizemime)"},"cuneiform":{"graphicsmagick":"Enables support of various input formats using media-gfx/graphicsmagick. Otherwise only uncompressed BMP files are supported.","imagemagick":"Enables support of various input formats using media-gfx/imagemagick. Otherwise only uncompressed BMP files are supported."},"dbacl":{"interactive":"Enable the interactive mailinspect ability"},"dictd":{"judy":"Build Judy-based (dev-libs/judy) plugin implementing fast \"exact\" and especially \"lev\" strategies","minimal":"Don't build server but dict client, dictzip and dictfmt only."},"docbook-sgml-utils":{"jadetex":"Add support for app-text/jadetex (for processing tex files produced by the TeX backend of Jade)"},"docbook-xsl-ns-stylesheets":{"ruby":"Install the Ruby-based dbtoepub script; requires an interpreter compatible with app-admin/eselect-ruby."},"docbook-xsl-stylesheets":{"ruby":"Install the Ruby-based dbtoepub script; requires an interpreter compatible with app-admin/eselect-ruby."},"dvipng":{"t1lib":"Enable support for T1lib font rendering (media-libs/t1lib)"},"enchant":{"aspell":"Adds support for app-text/aspell spell checker","hunspell":"Adds support for app-text/hunspell spell checker","zemberek":"Adds support for app-text/zemberek-server spell checker server"},"evince":{"dvi":"Enable the built-in DVI viewer","libsecret":"Enable support for credentials store","nautilus":"Enable property page extension in gnome-base/nautilus","t1lib":"Enable the Type-1 fonts for the built-in DVI viewer (media-libs/t1lib)","xps":"Enable XPS viewer using app-text/libgxps"},"getxbook":{"ocr":"Use app-text/tesseract for optical character recognition"},"glark":{"zip":"Support for ZIP files using dev-ruby/rubyzip"},"groonga":{"abort":"Enable query abortion","benchmark":"Build benchmark programs","dynamic-malloc-change":"Allow dynamic memory allocation change for testing","exact-alloc-count":"Atomic counting for memory alloc count","fmalloc":"Make memory allocation failed in specified condition for debug","futex":"Use futex","libevent":"Enable dev-libs/libevent used for suggestion","mecab":"Use app-text/mecab for morphological analysis","msgpack":"Enable dev-libs/msgpack used for suggestion","nfkc":"Use nfkc based utf8 normalization","sphinx":"Enable document generation by app-misc/sphinx","uyield":"Build for detecting race conditions","zeromq":"Enable net-libs/zeromq used for suggestion"},"gtkspell":{"vala":"Enable bindings for dev-lang/vala"},"hyperestraier":{"mecab":"Enable app-text/mecab support for Estraier"},"jmupdf":{"system-mupdf":"Link against system version of app-text/mupdf"},"lcdf-typetools":{"kpathsea":"Enable integration with kpathsea search library (TeX related)"},"liblangtag":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"libwpd":{"tools":"Build miscellaneous tools"},"lodgeit":{"vim":"Install a vim plugin allowing to paste and download from within vim"},"mathtex":{"png":"Generate png images by default instead of gif"},"mupdf":{"openssl":"Use dev-libs/openssl crypto backend"},"pandoc":{"embed_data_files":"Embed data files in binary for relocatable executable.","http-conduit":"Enable downloading of resources over https.","https":"Enable support for downloading of resources over https.","make-pandoc-man-pages":"Build program to regenerate pandoc man pages from README.","network-uri":"Get Network.URI from the network-uri package.","trypandoc":"Build trypandoc cgi executable."},"pastebinit":{"crypt":"Install pbputs for gpg-encrypted pastes"},"pdf2djvu":{"graphicsmagick":"Enable media-gfx/graphicsmagick support"},"pdfgrep":{"unac":"Removing accents and ligatures before search"},"pelican":{"markdown":"Markdown support"},"podofo":{"boost":"Add support for boost"},"poppler":{"introspection":"Enable GObject introspection.","utils":"Install command-line PDF converters and various utilities."},"qpdfview":{"fitz":"Use experimental fitz rendering, provided by app-text/mupdf, instead of poppler","synctex":"Add support for searching TeX sources"},"sgmltools-lite":{"jadetex":"Add support for app-text/jadetex (for processing tex files produced by the TeX backend of Jade)"},"stardict":{"espeak":"Enable text to speech synthesizer using espeak engine","gucharmap":"Enable gucharmap dictionary plugin","pronounce":"Install WyabdcRealPeopleTTS package (it is just many .wav files) to make StarDict pronounce English words","qqwry":"Enable QQWry plugin, which provides information (in Chinese language) about geographical positions, owner, etc. for IP addresses","tools":"Build and install the extra stardict tools"},"tesseract":{"linguas_chr":"Enable support for the Cherokee language.","linguas_jp":"Enable support for Japanese.","osd":"Enable support orientation and script detection.","scrollview":"Enable graphics support (ScrollView).","webp":"Enable support for webp image format."},"texlive":{"context":"Add support for the ConTeXt format (dev-texlive/texlive-context)","detex":"Add support for dev-tex/detex, a filter program that removes the LaTeX (or TeX) control sequences","dvi2tty":"Add support for dev-tex/dvi2tty to preview dvi-files on text-only devices","dvipdfm":"Add support for app-text/dvipdfm to convert DVI files to PDF","epspdf":"Add support for app-text/epspdf, a tool for converting [e]ps files to pdf.","extra":"Add support for extra TeXLive packages","games":"Add typesetting support for games (chess, etc.) (dev-texlive/texlive-games)","graphics":"Add support for several graphics packages (pgf, tikz,...)","humanities":"Add LaTeX support for the humanities (dev-texlive/texlive-humanities)","jadetex":"Add support for app-text/jadetex (for processing tex files produced by the TeX backend of Jade)","luatex":"Add extra support for luatex","metapost":"Add support for metapost: A tool for creating graphics in scalable PostScript.","music":"Add support for music typesetting (dev-texlive/texlive-music)","omega":"Add omega packages (dev-texlive/texlive-omega)","pdfannotextractor":"Add dev-tex/pdfannotextractor support, for extracting annotations from PDF files.","pstricks":"Add pstricks packages (dev-texlive/texlive-pstricks)","publishers":"Add support for publishers (dev-texlive/texlive-publishers)","science":"Add typesetting support for natural and computer sciences (dev-texlive/texlive-science)","tex4ht":"Add support for dev-tex/tex4ht (for converting (La)TeX to (X)HTML, XML and OO.org)","texi2html":"Add support for app-text/texi2html which converts texi files to HTML.","xetex":"Add support for XeTeX macros (dev-texlive/texlive-xetex)","xindy":"Add support for app-text/xindy, a flexible indexing system"},"texlive-core":{"xetex":"Add support for XeTeX: a TeX system with Unicode and modern font technologies."},"wdiff":{"experimental":"Build experimental utilities (mdiff, unify, wdiff2)"},"webgen":{"builder":"Enable programmatic HTML/XML generation","highlight":"Enable syntax highlighting for certain plugins","markdown":"Markdown support"},"wgetpaste":{"lodgeit-default":"Set one of lodgeit-like (ex http://paste.pocoo.org) services as default"},"wklej":{"vim":"Install the vim plugin allowing to paste through ':Wklej'."},"writerperfect":{"abiword":"Add support for abiword format using app-text/libabw","ebook":"Add support for various ebook formats using app-text/libebook","freehand":"Add support for freehand format using media-libs/libfreehand","gsf":"Add support for structured files using gnome-extra/libgsf","keynote":"Add support for keynote format using app-text/libetonyek","mspub":"Add support to mspub format using app-text/libmspub","mwaw":"Add support to mwaw formats using app-text/libmwaw","pagemaker":"Add support to pagemaker formats using media-libs/libpagemaker","visio":"Add support for visio format using media-libs/libvisio","wpd":"Add support for wpd format using app-text/libwpd","wpg":"Add support for wpg format using app-text/libwpg","wps":"Add support for wps format using app-text/libwps"},"wv":{"tools":"Install optional utilities considered deprecated in favor of using AbiWord."},"xiphos":{"webkit":"Use net-libs/webkit-gtk instead of gnome-extra/gtkhtml"},"yagf":{"cuneiform":"Enable support for the app-text/cuneiform OCR engine.","tesseract":"Enable support for the app-text/tesseract OCR engine."},"zathura":{"magic":"Use libmagic to determine mimetypes"},"zathura-meta":{"cb":"Install plug-in for ComicBook support"}},"app-vim":{"gentoo-syntax":{"ignore-glep31":"Remove GLEP 31 (UTF-8 file encodings) settings"},"vim-latex":{"html":"Install HTML documentation","python":"Enable python support which can help speed up some functionality"},"youcompleteme":{"clang":"Enable semantic support for C-family languages using sys-devel/clang"}},"dev-cpp":{"glog":{"gflags":"Use dev-cpp/gflags for flag parsing","unwind":"Use sys-libs/libunwind for stack unwinding instead of glibc/gcc (may be more reliable on x86_64)"},"libcmis":{"man":"Build and install man pages."},"pficommon":{"fcgi":"Build FCGI feature","mprpc":"Build MessagePack RPC feature"},"websocketpp":{"boost":"Use dev-libs/boost instead of C++11"},"xsd":{"ace":"Enable support for serializing to/from an ACE CDR stream"}},"dev-db":{"cppdb":{"mysql_internal":"Don't build a separate mysql loadable module but rather build it into the cppdb library itself","odbc_internal":"Don't build a separate postgresql loadable module but rather build it into the cppdb library itself","postgres_internal":"Don't build a separate odbc loadable module but rather build it into the cppdb library itself","sqlite_internal":"Don't build a separate sqlite3 loadable module but rather build it into the cppdb library itself"},"drizzle":{"curl":"Enable the HTTP authentication plugin (using net-misc/curl). This is needed for the tests to apply properly.","doc":"Build the API documentation for the package, using app-doc/doxygen. Warning, this might take over an hour on slower machines.","gearman":"Enable the gearman plugins for user-defined functions and logging (using sys-cluster/gearman).","haildb":"Use the dev-db/haildb libraries to replace the innodb plugin storage engine with haildb (an innodb fork).","md5":"Enable the MD5 plugin, using dev-libs/libgcrypt; this replaces the older openssl and gnutls USE flags.","memcache":"Enable the memcache plugin for user-defined functions and statistics in I_S tables (using dev-libs/libmemcached). Currently restricts tests because of an upstream testsuite bug.","pam":"Enable the PAM authentication plugin (using sys-libs/pam). The configuration file created will be /etc/pam.d/drizzle.","v8":"Use dev-lang/v8."},"firebird":{"client":"Install client library and header files only","superserver":"Install SuperServer","xinetd":"Install ClassicServer"},"haildb":{"debug":"Enable extra debug codepaths and assertions. If disabled, both the debug code and assertions are removed from the resulting binaries. Optimisations are untouched.","zlib":"Add support for compressed tables through sys-libs/zlib."},"maatkit":{"udf":"Build the MySQL UDFs shipped with maatkit, requires non-minimal MySQL"},"mariadb":{"cluster":"Add support for NDB clustering (deprecated)","community":"Enables the community features from upstream.","embedded":"Build embedded server (libmysqld)","extraengine":"Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)","jemalloc":"Use dev-libs/jemalloc for allocations.","latin1":"Use LATIN1 encoding instead of UTF8","max-idx-128":"Raise the max index per table limit from 64 to 128","minimal":"Install client programs only, no server","oqgraph":"Add support for the Open Query GRAPH engine","profiling":"Add support for statement profiling (requires USE=community).","sphinx":"Add suport for the sphinx full-text search engine","systemtap":"Build support for profiling and tracing using dev-util/systemtap","test":"Install upstream testsuites for end use.","tokudb":"Add support for TokuDB storage engine"},"mariadb-galera":{"cluster":"Add support for NDB clustering (deprecated)","community":"Enables the community features from upstream.","embedded":"Build embedded server (libmysqld)","extraengine":"Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)","jemalloc":"Use dev-libs/jemalloc for allocations.","latin1":"Use LATIN1 encoding instead of UTF8","minimal":"Install client programs only, no server","oqgraph":"Add support for the Open Query GRAPH engine","profiling":"Add support for statement profiling (requires USE=community).","sphinx":"Add suport for the sphinx full-text search engine","sst-rsync":"Add tools needed to support the rsync SST method","sst-xtrabackup":"Add tools needed to support the xtrabackup and xtrabackup-v2 SST methods","systemtap":"Build support for profiling and tracing using dev-util/systemtap","test":"Install upstream testsuites for end use.","tokudb":"Add support for TokuDB storage engine"},"mongodb":{"mms-agent":"Install the MongoDB Monitoring Service agent","sharedclient":"build client shared library libmongoclient.so","spidermonkey":"Use embedded SpiderMonkey engine (dev-lang/spidermonkey) instead of v8","tools":"Install the MongoDB tools (mongoimport, mongodump...) from app-admin/mongo-tools"},"mysql":{"cluster":"Add support for NDB clustering (deprecated)","community":"Enables the community features from upstream.","embedded":"Build embedded server (libmysqld)","extraengine":"Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)","jemalloc":"Use dev-libs/jemalloc for allocations.","latin1":"Use LATIN1 encoding instead of UTF8","max-idx-128":"Raise the max index per table limit from 64 to 128","minimal":"Install client programs only, no server","profiling":"Add support for statement profiling (requires USE=community).","systemtap":"Build support for profiling and tracing using dev-util/systemtap","test":"Install upstream testsuites for end use."},"mysql-cluster":{"cluster":"Add support for NDB clustering","community":"Enables the community features from upstream.","embedded":"Build embedded server (libmysqld)","extraengine":"Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)","jemalloc":"Use dev-libs/jemalloc for allocations.","latin1":"Use LATIN1 encoding instead of UTF8","max-idx-128":"Raise the max index per table limit from 64 to 128","minimal":"Install client programs only, no server","profiling":"Add support for statement profiling (requires USE=community).","systemtap":"Build support for profiling and tracing using dev-util/systemtap","test":"Install upstream testsuites for end use."},"mysql-connector-c++":{"gcov":"Build coverage support"},"percona-server":{"cluster":"Add support for NDB clustering (deprecated)","community":"Enables the community features from upstream.","embedded":"Build embedded server (libmysqld)","extraengine":"Add support for alternative storage engines (Archive, CSV, Blackhole, Federated(X), Partition)","jemalloc":"Use dev-libs/jemalloc for allocations.","latin1":"Use LATIN1 encoding instead of UTF8","minimal":"Install client programs only, no server","profiling":"Add support for statement profiling (requires USE=community).","systemtap":"Build support for profiling and tracing using dev-util/systemtap","test":"Install upstream testsuites for end use."},"pgadmin3":{"databasedesigner":"Enable the Database Designer component"},"pgbouncer":{"libevent":"Use libevent 2.0+ and evdns as the DNS backend","udns":"Use udns as the DNS backend. Supports IPv4 only."},"pgpool2":{"memcached":"Use memcached for query caching."},"pgrouting":{"drivingdistance":"Enable to calculate driving distance","html":"Install HTML formatted documentation"},"phpmyadmin":{"setup":"Installs the phpMyAdmin setup utility. Users who don't use the utility should disable this USE flag for security reasons as the setup tool was the target of various exploits in the past."},"postgis":{"gtk":"Build shp2pgsql-gui a graphical interface to shp2pgsql"},"postgresql":{"pg_legacytimestamp":"Use double precision floating-point numbers instead of 64-bit integers for timestamp storage.","server":"Disable to build and install the clients and libraries only.","uuid":"Enable server side UUID generation (via dev-libs/ossp-uuid)."},"psqlodbc":{"iodbc":"Use dev-db/libiodbc. Disable to use dev-db/unixODBC."},"recutils":{"curl":"Enable support for remote descriptors using libcurl","mdb":"Build the mdb2rec utility","uuid":"Enable support for uuid types"},"redis":{"jemalloc":"Use dev-libs/jemalloc for allocations.","tcmalloc":"Use tcmalloc from dev-util/google-perftools for allocations."},"soci":{"boost":"Enable boost support","empty":"Build the sample backend called Empty"},"spatialite":{"geos":"Add the sci-libs/geos library for exact topological tests","proj":"Add the sci-libs/proj library for reprojection features","xls":"Add the dev-libs/freexl library for xls import support"},"sqlite":{"secure-delete":"Overwrite deleted information with zeros in addition to marking the space as available for reuse. This causes a performance penalty."},"unixODBC":{"minimal":"Disable bundled drivers and extra libraries (most users don't need these)","odbcmanual":"Administrator, Internal Structure, Programmer and User documentation"}},"dev-embedded":{"avrdude":{"ftdi":"Enable support for USB FTDI chips via dev-embedded/libftdi"},"libftdi":{"tools":"build ftdi_eeprom helper tool"},"openocd":{"blaster":"Enable support for Altera USE-Blaster","cmsis-dap":"Support for CMSIS-DAP compliant adapters","dummy":"Build the dummy port driver","ftd2xx":"Enable support for USB FTDI chips via dev-embedded/libftd2xx","ftdi":"Enable support for USB FTDI chips via dev-embedded/libftdi","minidriver":"Build the dummy minidriver","parport":"Enable support for parport JTAG devices","presto":"Enable support for AXIS PRESTO devices","segger":"Enable support for the Segger J-Link JTAG","stlink":"Enable building support for the ST-Link JTAG Programmer","verbose-io":"Verbose IO and comm JTAG and USB messages","versaloon":"Enable building support for the Versallon-lInk JTAG"},"sdcc":{"boehm-gc":"Enable Hans Boehm's garbage collector (dev-libs/boehm-gc)"},"urjtag":{"ftd2xx":"Enable support for USB FTDI chips via dev-embedded/libftd2xx","ftdi":"Enable support for USB FTDI chips via dev-embedded/libftdi"}},"dev-games":{"aseprite":{"memleak":"Enable memory-leaks detector (only for developers)","static":"Link against static version of C and C++ runtimes"},"cegui":{"devil":"Build the DevIL based ImageCodec module","freeimage":"Build the FreeImage based ImageCodec module","irrlicht":"Enable the Irrlicht renderer","ogre":"Enable the OGRE renderer","tinyxml":"Enable the Tiny XML parser module","xerces-c":"Enable the Xerces-C++ XML parser module","zip":"Enable the Minizip resource provider"},"crystalspace":{"3ds":"Enables support for .3DS files in CrystalSpace","bullet":"include support for Bullet library","cal3d":"include support for skeleton animation","cegui":"include support for Crazy Eddie GUI","cg":"NVIDIA toolkit plugin","ode":"include support for Open Dynamics Engine"},"guichan":{"allegro":"Build the Allegro frontend"},"mygui":{"linguas_ru":"Install some additional russian docs if 'doc' useflag enabled","ogre":"Use the ogre render subsystem. (cannot combine with opengl)","opengl":"Use the opengl render subsystem. (cannot combine with ogre)","plugins":"Build MyGUI plugins","samples":"Install MyGUI demos (needs ogre USE flag)","tools":"Build the tools for development"},"ode":{"double-precision":"more precise calculations at the expense of speed","gyroscopic":"enable gyroscopic term (may cause instability)"},"ogre":{"boost":"enable boost support","cg":"NVIDIA toolkit plugin","double-precision":"more precise calculations at the expense of speed","freeimage":"support images via freeimage","gl3plus":"Build OpenGL 3+ RenderSystem (EXPERIMENTAL)","gles2":"build OpenGL ES 2.x RenderSystem","gles3":"Enable OpenGL ES 3.x Features","ois":"pull in Object-oriented Input System library for samples","poco":"when USE=threads, use poco for threading","tbb":"when USE=threads, use tbb for threading","tools":"build+install helper tools","zip":"support zip archives"},"openscenegraph":{"asio":"Enable support for dev-cpp/asio library","fox":"Build examples using x11-libs/fox library","gdal":"Enable support for sci-libs/gdal library","openinventor":"Build OpenInventor plugin","osgapps":"Build osg applications","xrandr":"Enable support for the X xrandr extension"},"physfs":{"grp":"Enable Build Engine GRP archive support","hog":"Enable Descent I/II HOG archive support","mvl":"Enable Descent I/II MVL archive support","qpak":"Enable Quake I/II QPAK archive support","wad":"Enable Doom WAD archive support","zip":"Enable ZIP archive support"},"simgear":{"subversion":"Enables terrasync scenery downloader"}},"dev-haskell":{"abstract-deque":{"usecas":"Enable the reference implementation to use hardware compare-and-swap."},"aeson":{"developer":"Operate in developer mode.'"},"aeson-pretty":{"lib-only":"don't build 'aeson-pretty' executable."},"ansi-terminal":{"example":"Build the example application."},"ansi-wl-pprint":{"example":"Build the example application."},"authenticate":{"network-uri":"Get Network.URI from the network-uri package"},"biosff":{"fclip":"Build the fclip executable.","flower":"Build the flower executable.","frecover":"Build the frecover executable."},"cabal-install":{"noprefs":"Ignore 'preferred-versions' file from hackage's tarball."},"certificate":{"executable":"Build the executable"},"cgi":{"extensible-exceptions-in-base":"Required to be enabled for >=dev-lang/ghc-7.","network-uri":"Get Network.URI from the network-uri package."},"chell":{"color-output":"use colors in program output"},"citeproc-hs":{"bibutils":"use Chris Putnam's app-text/bibutils","embed_data_files":"Embed locale files into the library (needed for windows packaging)","hexpat":"use dev-haskell/hexpat instead of dev-haskell/xml for XML parsing","network":"use dev-haskell/network and dev-haskell/http to retrieve CSL file from URIs","small_base":"Choose the new smaller, split-up base package.","unicode_collation":"Use Haskell bindings to the dev-libs/icu"},"cmdargs":{"quotation":"Build quote module","testprog":"Build the test program"},"comonad":{"containers":"You can disable the use of the `containers` package using `-f-containers`. Disabing this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users.","contravariant":"You can disable the use of the `contravariant` package using `-f-contravariant`. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users. If disabled we will not supply instances of `Contravariant`","distributive":"You can disable the use of the `distributive` package using `-f-distributive`. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users. If disabled we will not supply instances of `Distributive`","test-doctests":"Run the doctests test suite"},"conduit":{"nohandles":"experimental code to use raw system calls in place of handles. Not recommended for general use"},"configfile":{"buildtests":"Build the executable to run unit tests."},"contravariant":{"semigroups":"You can disable the use of the `semigroups` package using `-f-semigroups`. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users.","statevar":"You can disable the use of the `StateVar` package using `-f-StateVar`. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users.","tagged":"You can disable the use of the `tagged` package on older versons of GHC using `-f-tagged`. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users."},"cpu":{"executable":"build 'cpuid' tool"},"crypto-api":{"all_cpolys":"Build all the CMAC polynomes up to 10000 bits instead of just the usual ones"},"crypto-conduit":{"conduit11":"Use conduit >= 1.1."},"crypto-numbers":{"integer-gmp":"use integer-gmp library"},"crypto-pubkey":{"benchmark":"Build benchmarks."},"cryptohash":{"cryptoapi":"Defines crypto-api instances"},"dav":{"network-uri":"Get Network.URI from the network-uri package."},"distributive":{"lib-werror":"Compile with the ghc -Werror option"},"encoding":{"systemencoding":"Provide the getSystemEncoding action to query the locale."},"entropy":{"halvm":"Build for the HaLVM."},"filestore":{"maxcount":"Make use of a recent (>= 2.3.0) Darcs feature which vastly improves the performance of 'latest'. You should disable this flag if you plan to use gitit with an older version of Darcs, or 'latest' will raise an error."},"glib":{"closure_signals":"Use the the GClosure-based signals implementation."},"glut":{"usenativewindowslibraries":"When compiling under Windows, use the native libraries instead of e.g. the ones coming with Cygwin."},"gtk":{"fmode-binary":"Set the default file translation mode for file I/O operations to _O_BINARY. Some GTK libraries open image files without specifing binary mode. If you have trouble loading gtk in ghci, then it may help to turn this option off.","gio":"Depend on GIO package, thereby enabling certain features."},"gtk2hs-buildtools":{"closuresignals":"Use the the GClosure-based signals implementation."},"happstack-server":{"network-uri":"Get Network.URI from the network-uri package","template_haskell":"Description: Template Haskell is available on this system"},"hashed-storage":{"diff":"Provide the Storage.Hashed.Diff module.","hpc":"Compile with the profiling ghc flag -fhpc."},"hashtables":{"bounds-checking":"if on, use bounds-checking array accesses","portable":"if on, use only pure Haskell code and no GHC extensions.","unsafe-tricks":"turn on unsafe GHC tricks"},"haskeline":{"legacy-encoding":"Use legacy iconv encoding for POSIX. This is only intended for testing.","libiconv":"Explicitly link against the libiconv library.","terminfo":"Use the terminfo package for POSIX consoles."},"highlighting-kate":{"executable":"Build the Highlight executable.","pcre-light":"Use the pcre-light library instead of regex-pcre-builtin."},"hlint":{"gpl":"Use GPL libraries, specifically hscolour."},"hs3":{"network-uri":"Get Network.URI from the network-uri package."},"hslogger":{"buildtests":"Build the executable to run unit tests."},"hslua":{"apicheck":"Compile Lua with -DLUA_USE_APICHECK..","system-lua":"Use the system-wide lua instead of the bundled copy."},"hsopenssl":{"fast-bignum":"Enable fast moving of bignums between OpenSSL and GMP (GHC Only)"},"hstringtemplate":{"quasi-quotation":"Build module providing a quasi-quoter","syb-with-class":"Generic instances for TOSElem"},"http":{"conduit10":"Use version 1.0.x or below of the conduit package (for the test suite).","network-uri":"Get Network.URI from the network-uri package."},"http-client":{"network-uri":"Get Network.URI from the network-uri package."},"httpd-shed":{"buildexamples":"Build example executables.","network-uri":"Get Network.URI from the network-uri package."},"hxt":{"network-uri":"Get Network.URI from the network-uri package."},"ieee754":{"big_endian":"Build for a big endian machine. Beware that only little endian machines have been tested."},"json":{"generic":"Add support for generic encoder (dev-haskell/syb)","mapdict":"Encode Haskell maps as JSON dicts","parsec":"Add support for parsing with Parsec","pretty":"Add support for using pretty printing combinators"},"lens":{"benchmark-uniplate":"Enable benchmarking against Neil Mitchell's uniplate library for comparative performance analysis. Defaults to being turned off to avoid the extra dependency.","dump-splices":"Build and run the doctests test-suite.","inlining":"Generate inline pragmas when using template-haskell. This defaults to enabled, but you can to shut it off to benchmark the relative performance impact, or as last ditch effort to address compile errors resulting from the myriad versions of template-haskell that all purport to be 2.8.","j":"Attempt a parallel build with GHC 7.8.","lib-werror":"Turn on ghc-options: -Werror","old-inline-pragmas":"Some 7.6.1-rc1 users report their TH still uses old style inline pragmas. This lets them turn on inlining.","safe":"Disallow unsafeCoerce","test-doctests":"Build and run the doctests test-suite.","test-hlint":"You can disable the hlint test suite with -f-test-hlint","test-hunit":"You can disable the hunit test suite with -f-test-hunit","test-properties":"Build the properties test if we're building tests","trustworthy":"Assert that we are trustworthy when we can"},"lifted-async":{"monad-control-1":"Use moand-control == 1.*"},"monad-control":{"instancest":"If enabled this package will export MonadBaseControl instances for the lazy and strict ST monad. If disabled these instances are only exported when base >= 4.4. If enabled it is required that the transformer-base package exports MonadBase instances for ST. It will do this by default."},"monad-logger":{"template_haskell":"Enable Template Haskell support."},"monad-par":{"chaselev":"Use Chase-Lev Deques for higher-perf work-stealing."},"nats":{"hashable":"You can disable the use of the `hashable` package using USE=-hashable. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users. If set we will not supply an instance of `Hashable`."},"pandoc-citeproc":{"bibutils":"use Chris Putnam's app-text/bibutils","embed_data_files":"Embed locale files into the library (needed for windows packaging)","hexpat":"use dev-haskell/hexpat instead of dev-haskell/xml for XML parsing","network":"use dev-haskell/network and dev-haskell/http to retrieve CSL file from URIs","small_base":"Choose the new smaller, split-up base package.","test_citeproc":"Build the test-citeproc program","unicode_collation":"Use Haskell bindings to the dev-libs/icu"},"persistent":{"nooverlap":"Use OverlappingInstances only for String. Only developers should use this."},"persistent-sqlite":{"build-sanity-exe":"Build a sanity check test executable.","systemlib":"Use the system-wide sqlite library."},"quickcheck":{"template_haskell":"Enable additional test modules requiring Template Haskell support."},"recaptcha":{"network-uri":"Get Network.URI from the network-uri package."},"reflection":{"th":"Enable template haskell."},"rfc5051":{"mkunicodedata":"build codes generator itself"},"scientific":{"bytestring-builder":"Provide the Data.ByteString.Builder.Scientific module (requires bytestring >= 0.10)."},"semigroupoids":{"comonad":"You can disable the use of the `comonad` package using `-f-comonad`. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users. If disabled we will not supply instances of `Comonad`","containers":"You can disable the use of the `containers` package using `-f-containers`. Disabing this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users.","contravariant":"You can disable the use of the `contravariant` package using `-f-contravariant`. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users. If disabled we will not supply instances of `Contravariant`","distributive":"You can disable the use of the `distributive` package using `-f-distributive`. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users. If disabled we will not supply instances of `Distributive`"},"semigroups":{"bytestring":"You can disable the use of the `bytestring` package using USE=-bytestring. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users.","containers":"You can disable the use of the `containers` package using USE=-containers. Disabing this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users.","deepseq":"You can disable the use of the `deepseq` package using `-f-deepseq`. Disabing this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users.","hashable":"You can disable the use of the `hashable` package using USE=-hashable. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users. If set we will not supply an instance of `Hashable`.","text":"You can disable the use of the `text` package using USE=-text. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users.","unordered-containers":"You can disable the use of the `unordered-containers` package using USE=-unordered-containers. Disabling this is an unsupported configuration, but it may be useful for accelerating builds in sandboxes for expert users."},"sendfile":{"portable":"Explicitly enable portable sendfile support (implemented in Haskell)"},"sha":{"exe":"Build a sha1 and a sha384 executable similar to 'md5sum'."},"shakespeare":{"test_coffee":"Render tests through coffeescript render function.","test_export":"Test export.","test_roy":"Render tests through roy render function."},"shakespeare-js":{"test_coffee":"Test coffee.","test_export":"Test export.","test_roy":"Test roy."},"simple-sendfile":{"allow-bsd":"Allow use of BSD sendfile (disable on GNU/kFreeBSD)"},"skein":{"big-endian":"When manually selecting the endianness, use big-endian (default is little-endian).","force-endianness":"Use a manually selected endian when compiling (see flag 'big-endian').","reference":"Use the reference implementation instead of the optimized one."},"snap-core":{"portable":"No non-haskell unportable code."},"snap-server":{"openssl":"enable https support using dev-haskell/hsopenssl","portable":"no non-haskell unportable code."},"tagsoup":{"download":"Build with Download module.","testprog":"Build the test program."},"tasty":{"colors":"Enable colorful output"},"tasty-quickcheck":{"old-quickcheck":"Use Quick-Check < 2.7."},"texmath":{"executable":"Compile test executable.","network-uri":"Get Network.URI from the network-uri package."},"text":{"developer":"operate in developer mode"},"tls":{"compat":"Accept SSLv2 compatible handshake"},"transformers-base":{"orphaninstances":"Build instances for orphan datatypes."},"transformers-compat":{"three":"Use transformers-0.3"},"unix-compat":{"old-time":"build against old-time package"},"vector":{"boundschecks":"Enable bounds checking","internalchecks":"Enable internal consistency checks at the cost of a significant performance penalty","unsafechecks":"Enable bounds checking in unsafe operations at the cost of a significant performance penalty"},"vector-algorithms":{"bench":"Build a benchmarking program.","boundschecks":"Enable bounds checking.","internalchecks":"Enable internal consistency checks at the cost of a significant performance penalty.","properties":"Enable quickcheck tests.","unsafechecks":"Enable bounds checking in unsafe operations at the cost of a significant performance penalty."},"void":{"safe":"dissable effective but unsafe coersions"},"wai-app-static":{"print":"print debug info."},"warp":{"allow-sendfilefd":"Allow use of sendfileFd (not available on GNU/kFreeBSD).","warp-debug":"Add additional debuging information"},"x11":{"screensaver":"whether to build XScreenSaver."},"x509-store":{"executable":"Build the executable"},"xss-sanitize":{"network-uri":"Get Network.URI from the network-uri package."},"yaml":{"no-exe":"don't install the yaml2json executable","system-libyaml":"Use system libyaml instead on generic one"},"yesod-auth":{"network-uri":"Get Network.URI from the network-uri package"},"yesod-form":{"network-uri":"Get Network.URI from the network-uri package"},"zip-archive":{"executable":"Build the Zip executable."}},"dev-java":{"ant":{"antlr":"Enable ANTLR Ant tasks","bcel":"Enable bcel (bytecode manipulation) Ant tasks","commonslogging":"Enable commons-logging Ant tasks","commonsnet":"Enable commons-net Ant tasks","jai":"Enable JAI (Java Imaging) Ant task","javamail":"Enable JavaMail Ant task","jdepend":"Enable Jdepend Ant tasks","jmf":"Enable JMF (Java Media Framework) Ant tasks","jsch":"Disable Jsch (ssh, scp and related) Ant tasks","log4j":"Enable Apache log4j Ant tasks","oro":"Enable Apache Oro Ant tasks","regexp":"Enable Apache Regexp Ant tasks","resolver":"Enable Apache Resolver Ant tasks","testutil":"Enable optional test util classes"},"antlr":{"gunit":"gUnit is a \"Unit Test\" framework for ANTLR grammars","script":"Install a script to run antlr"},"bcel":{"findbugs":"Include performance patch for findbugs package."},"commons-collections":{"test-framework":"Install the test framework"},"commons-logging":{"avalon-framework":"Add optional support for avalon-framework","avalon-logkit":"Add optional support for avalon-logkit","log4j":"Add optional support for log4j","servletapi":"Add optional support for servletapi"},"commons-modeler":{"commons-digester":"Add support for the commons-digester based Mbeans Descriptor source"},"diablo-jdk":{"jce":"Enable Java Cryptographic Extension Unlimited Strength Policy files"},"ecj-gcj":{"native":"Build a native binary along with the jar. Provides faster execution time, but needs about 1G memory and some patience to compile."},"eclipse-ecj":{"ant":"Support using ecj in Ant builds via dev-java/ant-eclipse-ecj"},"emma":{"launcher":"Install /usr/bin/emma. Collides with sci-biology/emboss."},"fop":{"hyphenation":"Precompile hyphenation patterns from the dev-java/offo-hyphenation package and install them as fop-hyph.jar","jai":"Enable jai support","jimi":"Enable jimi support"},"gjdoc":{"xmldoclet":"Also build support for the xml doclet that generates output in xml instead of the traditional html javadoc."},"gnu-classpath":{"alsa":"Build with ALSA javax.sound.midi provider","dssi":"Build with DSSI javax.sound.midi provider","gconf":"Build with GConf preferences backend","gjdoc":"Build GJDoc, a documentation generator","gmp":"Build with GMP backend for java.math.BigInteger","gstreamer":"Build with GStreamer javax.sound.sampler provider","gtk":"Build with Gtk+ AWT peers","qt4":"Build with Qt4 AWT peers","xml":"Build with native XML backend"},"httpcomponents-client":{"deprecated":"Build deprecated classes"},"httpcomponents-core":{"deprecated":"Build deprecated classes"},"ibm-jdk-bin":{"javacomm":"Enable Java Communications API support"},"icedtea":{"X":"Make X buildtime-only depenency.","alsa":"Make alsa buildtime-only dependency.","cacao":"Build CACAO virtual machine on platforms supporting HotSpot. (experimental)","cups":"Make CUPS build-only dependency.","infinality":"Enable better font rendering using fontconfig.","jamvm":"Use the JamVM virtual machine rather than HotSpot.","jbootstrap":"If possible, recompile the final IcedTea executables with itself.","nsplugin":"Enable browser plugin (NPPlugin), requires also the webstart flag to be enabled.","nss":"Enable NSS security provider support.","pax_kernel":"For building when running a PaX enabled kernel.","smartcard":"Build the PCSC driver against pcsc-lite","sunec":"Build the SunEC provider against system NSS","systemtap":"Enable SystemTap probes in HotSpot.","webstart":"Enable Web Start support (via NetX).","zero":"Enable Zero assembler port (usually for non-HotSpot architectures)"},"icedtea-bin":{"webstart":"Provide javaws command through symlink to icedtea-web"},"icedtea-web":{"icedtea7":"Build icedtea-7 support in addition to icedtea-6 support. Requires icedtea{-bin}-7","javascript":"Enable support for using proxy auto config (PAC) files.","nsplugin":"Enable the browser plugin (NPPlugin).","tagsoup":"Depend on dev-java/tagsoup which allows parsing malformed .jnlp files"},"itext":{"rtf":"Build and provide libraries for rich text format","rups":"Build and provide GUI for Reading/Updating PDF Syntax"},"jcs":{"admin":"Enable JCS Admin servlets"},"jdbc-jaybird":{"jni":"Build/Install JDBC Type 2 native components"},"jdbc-mysql":{"c3p0":"Enable c3p0 support","log4j":"Enable log4 support"},"jdbc-oracle-bin":{"dms":"Enable support for the Oracle Dynamic Monitoring Service","ons":"Enable support for the Oracle Notification Services (ONS) deamon"},"jfreechart":{"servlet":"Build a servlet using the servlet API."},"jna":{"awt":"Enables support for Java AWT","nio-buffers":"Enables support for NIO buffers"},"jython":{"readline":"Use GNU readline instead of jline","servletapi":"Add optional support for servlet-api"},"log4j":{"javamail":"Build the SMTPAppender","jms":"Build the JMSAppender","jmx":"Build org.apace.log4j.jmx"},"logback":{"tomcat":"Builds Apache Tomcat support"},"lucene":{"contrib":"Include extra functionality from contrib/"},"miglayout":{"swt":"Add support for the SWT toolkit."},"netbeans-nb":{"keychain":"Automatically starts keychain on netbeans start and loads specified keys so Netbeans can use them."},"oracle-jdk-bin":{"derby":"Enable Installation of Bundled Derby (Java DB)","jce":"Enable Java Cryptographic Extension Unlimited Strength Policy files","pax_kernel":"Use paxctl to mark the JVM binaries."},"oracle-jre-bin":{"jce":"Enable Java Cryptographic Extension Unlimited Strength Policy files","pax_kernel":"Use paxctl to mark the JVM binaries."},"proguard":{"ant":"Ant task for using ProGuard in build.xml scripts","j2me":"Adds support for J2ME Wireless Toolkit"},"rxtx":{"lfd":"Installs and uses LockFileServer daemon (lfd)"},"spymemcached":{"spring":"Build support for the spring framework"},"sun-jdk":{"derby":"Enable Installation of Bundled Derby (Java DB)","jce":"Enable Java Cryptographic Extension Unlimited Strength Policy files","pax_kernel":"Use paxctl to mark the JVM binaries."},"sun-jre-bin":{"jce":"Enable Java Cryptographic Extension Unlimited Strength Policy files","pax_kernel":"Use paxctl to mark the JVM binaries."},"swt":{"webkit":"Embedded browser support via net-libs/webkit-gtk:2, replacing former xulrunner-based browser."}},"dev-lang":{"bas":{"lr0":"Use the LR0 parser instead of the recursive descending parser"},"erlang":{"compat-ethread":"Enable compatibility with pre-pentium 4 CPUs in the ethread library.","halfword":"Enable halfword emulator","hipe":"HIgh Performance Erlang extension","kpoll":"Enable kernel polling support","sctp":"Support for Stream Control Transmission Protocol"},"fpc":{"ide":"Build and install the Free Pascal Compiler IDE"},"gdl":{"eigen":"Build matrix manipulation with dev-cpp/eigen","grib":"Add support for the meteorological GRIB format with sci-libs/grib_api","gshhs":"Add support for projection adn continent maps with sci-geosciences/gshhs-data","hdf":"Add support for the Hierarchical Data Format v.4","proj":"Add support for sci-libs/proj (geographic projections)","udunits":"Add support for manipulating units of physical quantities"},"ghc":{"binary":"Install the binary version directly, rather than using it to build the source version.","ghcbootstrap":"Bootstrap from an existing GHC installation.","ghcmakebinary":"Build with less runtime depends (bundle libffi for building bootstrap binaries).","llvm":"Enable llvm code generator for ghc (-fllvm)."},"gnat-gcc":{"lto":"Add support for link-time optimizations (unsupported, use at your own risk)."},"icc":{"eclipse":"Install the dev-util/eclipse-sdk plugins"},"icon":{"iplsrc":"install the icon programming library source"},"idb":{"eclipse":"Install the dev-util/eclipse-sdk plugins"},"io":{"clutter":"Build add-on for media-libs/clutter","editline":"Build add-on for dev-libs/libedit","google":"Build the google search add-on","gui":"Build the Flux GUI add-on","http":"Build http client add-on","image":"Build add-on for images support (jpeg, png, tiff)","libxml2":"Build add-on for dev-libs/libxml2","md5sum":"Build md5sum add-on","sha1":"Build sha1 add-on","twitter":"Build twitter add-on"},"lazarus":{"minimal":"Don't build extra packages from the bigide component"},"logtalk":{"fop":"Support for generating pdf documentation using fop","gnupl":"Support GNU Prolog back-end compiler","qupl":"Support Qu-Prolog back-end compiler","swipl":"Support SWI-Prolog back-end compiler","xsbpl":"Support XSB back-end compiler","xslt":"Support for generating html documentation using xslt","yappl":"Support YAP back-end compiler"},"lua":{"deprecated":"make deprecated data structures/routines available"},"luajit":{"lua52compat":"Enable some upwards-compatible features from Lua 5.2 that are unlikely to break existing code."},"mercury":{"erlang":"Support Mercury Erlang grade"},"mlton":{"binary":"install a binary version (need to do this once to bootstrap, until smlnj is supported)"},"mono":{"pax_kernel":"Enable if the user plans to run the package under a pax enabled hardened kernel","xen":"Make mono generate code that is considerably faster on xen VMs but slightly slower on for normal systems."},"nqp":{"moar":"Build the MoarVM backend (experimental/broken)","parrot":"Build the parrot backend (default)"},"path64":{"assembler":"Build PathAS","debugger":"Build PathDB","native":"Use EKOPath/Path64 for bootstraping","valgrind":"Use dev-util/valgrind for memory debbuging"},"perl":{"ithreads":"Enable Perl threads, has some compatibility problems"},"php":{"cli":"Enable CLI SAPI","embed":"Enable embed SAPI","enchant":"Add supports Enchant spelling library.","fileinfo":"Add fileinfo extension support","filter":"Add filter extension support","fpm":"Enable the FastCGI Process Manager SAPI","gd":"Adds support for gd (bundled with PHP)","hash":"Enable the hash extension","intl":"Enables the intl extension for extended internalization support","json":"Enable JSON support","ldap-sasl":"Add SASL support for the PHP LDAP extension","libmysqlclient":"Use libmyslclient driver for mysql, mysqli, PDO_Mysql (not recommended)","mysqlnd":"Use native driver for mysql, mysqli, PDO_Mysql","opcache":"Enables built-in opcode cache, replacing pecl-apc et.al","pdo":"Enable the bundled PDO extensions","phar":"Enables the phar extension to provide phar archive support","sqlite2":"Add sqlite2 support. Will be removed","vpx":"Enable webp suppoprt for GD","xmlreader":"Enable XMLReader support","xmlwriter":"Enable XMLWriter support","xslt":"Enable the XSL extension","zip":"Enable ZIP file support"},"polyml":{"portable":"Build the portable interpreter version of Poly/ML instead of native."},"python":{"threads":"Enable threading support. (DON'T DISABLE THIS UNLESS YOU KNOW WHAT YOU'RE DOING)","wide-unicode":"Enable wide Unicode implementation which uses 4-byte Unicode characters. Switching of this USE flag changes ABI of Python and requires reinstallation of many Python modules. (DON'T DISABLE THIS UNLESS YOU KNOW WHAT YOU'RE DOING)","wininst":"Install Windows executables required to create an executable installer for MS Windows."},"qu-prolog":{"pedro":"Pedro subscription/notification communications system"},"rakudo":{"moar":"Build the MoarVM backend (experimental)","parrot":"Build the parrot backend (default)"},"rubinius":{"llvm":"Build with llvm. Currently the package only builds against old versions of llvm."},"ruby":{"jemalloc":"Use dev-libs/jemalloc for memory allocation.","rdoc":"Install dev-ruby/rdoc after installing Ruby.","readline":"Use the sys-libs/readline library to provide the readline extension, used for instance by the irb tool. This flag is meaningful only if the libedit USE flag is disabled. If neither libedit nor readline USE flags are enabled, the readline extension will not be built (and irb will lose line editing functionality).","rubytests":"Install ruby tests that can only be run after ruby is installed","yaml":"Use the dev-libs/libyaml library to build the psych extension, available since Ruby 1.9.2_rc2, in alternative to the bundled syck-based parser."},"rust":{"clang":"Use sys-devel/clang for building","libcxx":"Use sys-libs/libcxx as standard library when building with sys-devel/clang","system-llvm":"Use system sys-devel/llvm in place of the bundled one"},"scala":{"binary":"Install from (Gentoo-compiled) binary instead of building from sources. Set this when you run out of memory during build."},"spidermonkey":{"debug":"Enable assertions to allow for easier debugging of programs that link to spidermonkey -- note this will often crash software on regular end-user systems","system-icu":"Use the system-wide dev-libs/icu instead of bundled -- note, only takes effect when icu flag is enabled","threadsafe":"Build a threadsafe version of spidermonkey"},"swi-prolog":{"archive":"Use libarchive for extension packs"},"swig":{"ccache":"build ccache-swig(a fast compiler cache)"},"vala":{"vapigen":"Enable vala's library binding generator"},"yap":{"R":"Enable support for connecting R to Prolog"}},"dev-libs":{"DirectFB":{"bmp":"build BMP image provider","divine":"enable DiVine","drmkms":"build with DRM/KMS support","dynload":"enable dynload support","egl":"build with EGL support","fusiondale":"enable FusionDale","fusionsound":"enable FusionSound","gles2":"build gles2 gfxdriver","imlib2":"build Imlib2 image provider","input_hub":"provides an asynchronous interface to the input devices available and those being added/removed","mpeg2":"build MPEG2 image provider","mpeg3":"build Libmpeg3 video provider","multicore":"enable multicore support","pnm":"build PNM (PBM/PGM/PPM) image provider","sawman":"enable SaWMan (window manager and application manager)","swfdec":"build Swfdec (Flash decoder) video provider","tremor":"build Ogg/Vorbis music provider using Tremor","webp":"build WebP image provider"},"STLport":{"boost":"Enable the usage of dev-libs/boost"},"ace":{"ciao":"Include Component Intergraced Ace ORB into the build of ace","tao":"Include the ACE ORB (CORBA stuff) (called tao) into the build of ace"},"antlr-c":{"debugger":"Compiles debug info into the library"},"apr":{"older-kernels-compatibility":"Enable binary compatibility with older kernels","urandom":"Use /dev/urandom instead of /dev/random"},"apr-util":{"nss":"Install apr_crypto_nss module","openssl":"Install apr_crypto_openssl module"},"bitset":{"jemalloc":"Use dev-libs/jemalloc for allocations","tcmalloc":"Use tcmalloc from dev-util/google-perftools for allocations"},"blitz":{"boost":"Enable usage of boost::serialization"},"boost":{"context":"Build and install the Boost.Context library and all other Boostlibraries that depends on it","debug":"Build and install only the debug version of the Boost libraries. Only enable this flag if you're developing against boost.","doc":"Install the full API documentation documentation. This takes over 200MB of extra disk space.","nls":"Build libboost_locale. This library requires compatible C library interfaces, which might not be provided by uClibc or other embedded libraries.","threads":"Build multi-thread-compatible libraries instead of single-threaded only.","tools":"Build and install the boost tools (bcp, quickbook, inspect, wave)"},"c-blosc":{"lz4":"Enable lz4 compression","snappy":"Enable snappy compression"},"check":{"subunit":"Enable support for the subunit unit test protocol"},"cyberjack":{"fox":"Enable installation of x11-libs/fox based fxcyberjack program"},"cyrus-sasl":{"authdaemond":"Add Courier-IMAP authdaemond unix socket support (net-mail/courier-imap, mail-mta/courier)","ldapdb":"Enable ldapdb plugin","ntlm_unsupported_patch":"Add NTLM net-fs/samba NOT supported patch","openldap":"Add ldap support for saslauthd","sample":"Enable sample client and server","srp":"Enable SRP authentication","urandom":"Use /dev/urandom instead of /dev/random"},"dbus-c++":{"ecore":"Use Ecore integration","glib":"Use glib integration"},"e_dbus":{"bluetooth":"Enable interfacing with net-wireless/bluez DBus API.","ofono":"Enable interfacing with net-misc/ofono DBus API.","test-binaries":"Enable building of test binaries for enabled features"},"ecore":{"ares":"Enables support for asynchronous DNS using the net-dns/c-ares library","evas":"Provides easy to use canvas by gluing media-libs/evas and various input/output systems.","gles":"Add gles support to the ecore-evas-wayland module","glib":"Enable dev-libs/glib eventloop support","inotify":"Enable support for inotify","tslib":"Build with tslib support for touchscreen devices.","wayland":"Add support for dev-libs/wayland","xprint":"Enable X11 Xprint support"},"eeze":{"utilities":"Install some test utilities for mount/umount support in eeze"},"efl":{"bmp":"Enable WBMP image loader.","drm":"Enable DRM engine.","eet":"Enable Eet image loader.","egl":"Enable EGL rendering.","fribidi":"Enable bidirectional text support.","gles":"Enable the OpenGL ES GL implementation.","glib":"Enable dev-libs/glib support.","harfbuzz":"Enable complex text shaping and layout support.","ibus":"Enable Intelligent Input Bus.","ico":"Enable Ico image loader.","oldlua":"USE dev-lang/lua instead of dev-lang/luajit","physics":"Enable Bullet physics effects and support.","pixman":"Enable PixMan for software rendering.","ppm":"Enable PMAPS image loader.","psd":"Enable PSD image loader.","scim":"Enable Smart Common Input Method.","tga":"Enable Tga image loader.","tslib":"Enable x11-libs/tslib for touchscreen events.","v4l2":"Enable Video4Linux2 support.","valgrind":"Enable usage of dev-util/valgrind in debug","webp":"Enable WebP image loader.","xim":"Enable X Input Method."},"eina":{"default-mempool":"By default use system's allocator (pass-through) instead of custom choice for Eina's own data structures.","mempool-buddy":"Compile \"buddy\" memory pool allocation.","mempool-chained-pool":"Compile \"chained-pool\" memory pool allocation.","mempool-fixed-bitmap":"Compile \"fixed-bitmap\" memory pool allocation.","mempool-one-big":"Compile \"one-big\" memory pool allocation.","mempool-pass-through":"Compile \"pass-through\" (system's malloc) memory pool allocation.","valgrind":"Compile in valgrind hints for smoother integration."},"elfutils":{"lzma":"Support automatic decompression of LZMA-compressed files and kernel images","threads":"Build the libraries with thread safe support","utils":"Install command-line utilities (all the eu-* programs)"},"fampp2":{"stlport":"Include support for dev-libs/STLport"},"fcgi":{"html":"Install HTML documentation"},"ferrisloki":{"stlport":"Include support for dev-libs/STLport"},"folks":{"socialweb":"Load web service contacts using net-libs/libsocialweb","telepathy":"Load contacts from the Telepathy framework","tracker":"Load contacts from app-misc/tracker index","utils":"Build the folks-inspect utility","zeitgeist":"Add support for Zeitgeist event tracking system"},"fstrm":{"utils":"Build fstrm utility programs"},"gecode":{"gist":"Enable Gist, the Gecode Interactive Search Tool"},"gf2x":{"bindist":"Disable automatic fine-tuning to local processor features like pclmul or sse2."},"glib":{"dbus":"Enable dependencies required by glib libraries using dbus service to manage settings saving","mime":"Pull in shared MIME database that many glib-based applications require at runtime to detect or open files. Warning: do not disable this flag unless installing on a headless server.","systemtap":"Build support for profiling and tracing using dev-util/systemtap","utils":"Install gtester-report utility to generate test report files for your software."},"gmp":{"pgo":"after building gmp, run some tests against to produce faster libraries -- this option will double the compile time"},"gobject-introspection":{"doctool":"Install g-ir-doc-tool for generating documentation from introspected data"},"intel-common":{"compiler":"Install the libraries needed for the icc and ifort compilers"},"jemalloc":{"stats":"Enable statistics calculation/reporting"},"keybinder":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"leveldb":{"snappy":"support the snappy compression library"},"libRocket":{"samples":"Build samples"},"libbase58":{"tools":"Build command line base58 tool"},"libburn":{"cdio":"Enable EXPERIMENTAL use of libcdio as system adapter","track-src-odirect":"Read track input with O_DIRECT (see man 2 open), this may deliver a better write performance in some situations"},"libcdio":{"minimal":"Only build the libcdio library and little more, just to be used to link against from multimedia players. With this USE flag enabled, none of the command-line utilities are built, nor is the CDDA library."},"libcec":{"cubox":"Enable support for enable support for the TDA995x","exynos":"Enable support for Exynos chipsets","raspberry-pi":"Enable support for the Raspberry Pi","xrandr":"Enable detection of active HDMI using xrandr extensions"},"libcgroup":{"daemon":"Install the configuration tools and init/config files.","tools":"Install the cgroup rules processing daemon and init/config files."},"libclsync":{"extra-hardened":"Enable extra security checks. This may hurt performance."},"libdbusmenu":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"libdivecomputer":{"tools":"Install tools that can be used to test the library."},"libdynd":{"cuda":"Enable NVIDIA CUDA toolkit support"},"libevent":{"debug":"Support runtime debug mode and malloc hooks (for programmers)"},"libffi":{"pax_kernel":"Use PaX emulated trampolines, for we can't use PROT_EXEC"},"libflatarray":{"cuda":"Enables plugins for NVIDIA GPUs (e.g. CUDAAllocator)"},"libgdata":{"vala":"Enable bindings for dev-lang/vala"},"libgit2":{"gssapi":"Enable GSSAPI support for SPNEGO auth","ssh":"Enable SSH transport support","trace":"Enable tracing support"},"libgit2-glib":{"ssh":"Enable SSH transport support"},"libgpg-error":{"common-lisp":"Install common-lisp files"},"libgusb":{"vala":"Enable bindings for dev-lang/vala"},"libgweather":{"glade":"Installs catalog files for dev-util/glade"},"libindicate":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"libisoburn":{"cdio":"Enable EXPERIMENTAL use of libcdio as system adapter","external-filters":"Allow the use of external processes as file content filters (Note: this is a potential security risk)","external-filters-setuid":"Also allow the use of external setuid processes as file content filters (Note: this is a potential security risk)","frontend-optional":"Use dev-tcltk/bwidget which is not strictly required for the frontend","launch-frontend":"Enable the tcl gui for xorriso","launch-frontend-setuid":"Enable the tcl gui for xorriso under setuid"},"libisofs":{"verbose-debug":"Enable verbose debug messages"},"libjit":{"interpreter":"Enable the libjit interpreter","long-double":"Enable the use of long double for jit_nfloat"},"liblogging":{"rfc3195":"Enables RFC 3195 protocol (aka syslog-reliable) support. If you don't know what this is, you don't need it!","stdlog":"Enables liblogging's core component (think of it as a the next version of the syslog(3) API)."},"libmail":{"apop":"Enables the APOP authentication method"},"libmemcached":{"hsieh":"Use Hsieh hash algorithm.","libevent":"Use the libevent event loop interface.","sasl":"Use sasl auth for communications."},"libnfc":{"pcsc-lite":"Enable NFC drivers that require pcsc-lite"},"libnl":{"doc":"Install development documentation","python":"Install experimental dev-lang/python bindings","utils":"Install command line interface utils"},"libowfat":{"diet":"Compile against dev-libs/dietlibc"},"libp11":{"doc":"Generate and install API documentation for the package."},"libpcre":{"bzip2":"Add support for pcregrep command to search within bzip2-compressed files, through sys-libs/zlib.","pcre16":"Build 16 bit PCRE library.","pcre32":"Build 32 bit PCRE library.","readline":"Add support for command line editing to pcretest, through sys-libs/readline.","recursion-limit":"Limit match recursion to 8192; if disabled, the default limit is used, which is the same as the match limit.","zlib":"Add support for pcregrep command to search within gzip-compressed files, through app-arch/gzip."},"libpeas":{"glade":"Install the glade catalog","python":"Build support for loading dev-lang/python plugins","seed":"Build support for loading JavaScript plugins using dev-libs/seed"},"librra":{"recurrence":"Enable recurrence support (EXPERIMENTAL)"},"libsecp256k1":{"asm":"Enable x86_64 assembly optimisation","endomorphism":"Enable endomorphism"},"libsodium":{"asm":"Enables assembly implementations","urandom":"Use /dev/urandom instead of /dev/random"},"libsqlora8":{"orathreads":"Use Oracle threads"},"libtermkey":{"demos":"Install demos, which pulls in dev-libs/glib"},"libunique":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"libverto":{"glib":"Support event loops using dev-libs/glib","libev":"Support event loops using dev-libs/libev","libevent":"Support event loops using dev-libs/libevent","tevent":"Support event loops using sys-libs/tevent"},"libzypp":{"libproxy":"Use net-libs/libproxy for getting the HTTP/HTTPS/SOCKS proxy configuration"},"link-grammar":{"aspell":"Adds support for app-text/aspell spell checker","hunspell":"Adds support for app-text/hunspell spell checker"},"log4cplus":{"iconv":"Use inconv for wchar_t <-> char conversions. See also log4cplus's unicode.txt documentation","working-c-locale":"Use the C99 locale facilities for wchar_t <-> char conversions. See also log4cplus's unicode.txt documentation","working-locale":"Use C++'s std::locale for wchar_t <-> char conversions. See also log4cplus's unicode.txt documentation"},"log4cxx":{"smtp":"Offer SMTP support via net-libs/libesmtp"},"m17n-lib":{"X":"Builds the Graphical User Interface API and utilities for the package.","anthy":"Enable support for app-i18n/anthy input method.","athena":"Enable the MIT Athena widget set (x11-libs/libXaw)","gd":"Build API and utilities based on media-libs/gd. This flag is only meaningful if the X USE flag is also enabled.","libotf":"Use dev-libs/libotf to handle OpenType fonts","libxml2":"Use dev-libs/libxml2 to parse XML"},"nss":{"cacert":"Include root certs from CAcert (http://http://www.cacert.org/) and Software in the Public Interest (http://www.spi-inc.org/)","nss-pem":"Add support for libnsspem","utils":"Install utilities included with the library"},"oniguruma":{"combination-explosion-check":"enable combination explosion check","crnl-as-line-terminator":"enable CR+NL as line terminator"},"opencryptoki":{"tpm":"Enable support for Trusted Platform Module (TPM) using app-crypt/trousers"},"openct":{"debug":"Add debug output to the driver library for pcsc-lite.","pcsc-lite":"Build a driver library for sys-apps/pcsc-lite, providing PC/SC API access to devices supported by OpenCT.","udev":"Install rules for sys-fs/udev to auto-start openct."},"openobex":{"irda":"Enable IrDA support"},"opensc":{"ctapi":"Use CT-API for accessing Smartcard hardware.","libtool":"Use sys-devel/libtool for dynamically loading libraries rather than the host libdl/dlopen helpers.","openct":"Use dev-libs/openct (and CT-API) for accessing Smartcard hardware.","pcsc-lite":"Use sys-apps/pcsc-lite (and PC/SC API) for accessing Smartcard hardware.","secure-messaging":"Enable secure messaging."},"openssl":{"asm":"Support assembly hand optimized crypto functions (i.e. faster run time)","bindist":"Disable EC algorithms (as they seem to be patented) -- note: changes the ABI","rfc3779":"Enable support for RFC 3779 (X.509 Extensions for IP Addresses and AS Identifiers)","sctp":"Support for Stream Control Transmission Protocol","tls-heartbeat":"Enable the Heartbeat Extension in TLS and DTLS"},"pkcs11-helper":{"nss":"Enable NSS crypto engine"},"ppl":{"lpsol":"Build the ppl_lpsol linear programming problem solver"},"seed":{"profile":"Build support for profiling dev-libs/seed for development purposes"},"soprano":{"raptor":"Enables support for media-libs/raptor RDF parser/serializer.","redland":"Enables support for the dev-libs/redland storage backend (really slow one).","virtuoso":"Enables support for dev-db/virtuoso storage backend."},"starpu":{"cuda":"Enable NVIDIA CUDA toolkit support","gcc-plugin":"Enable GCC extension plugin (experimental)","opencl":"Enable OpenCL support"},"tinyxml":{"stl":"Compile with TIXML_USE_STL support"},"tntnet":{"server":"Enable tntnet server daemon"},"totem-pl-parser":{"archive":"Enables support for accessing media files in archives transparently via app-arch/libarchive","quvi":"Use media-libs/quvi for parsing video links"},"ucommon":{"socks":"Build with socks proxy support"},"weston":{"colord":"Allow setting color managment","drm":"Enable drm compositor support","editor":"Install wayland-editor example application","egl":"Enable egl acceleration","fbdev":"Enable fbdev compositor support","gles2":"Use GLESv2 cairo instead of full GL","headless":"Headless backend and a noop renderer, mainly for testing purposes","launch":"Install weston-launch utility","rdp":"Enable Remote Desktop Protocol compositor support","resize-optimization":"Increase performance, allocate more RAM. Recommended to disable on Raspberry Pi","rpi":"Raspberry Pi GPU support","screen-sharing":"Enable screen-sharing through RDP","tablet":"Enable interface for tablets","unwind":"Enable libunwind usage for backtraces","view":"Install wayland-view example application","wayland-compositor":"Enable Wayland compositor support","xwayland":"Enable ability support native X11 applications"},"xapian":{"brass":"Enabled brass backend db support","chert":"Enabled chert backend db support","inmemory":"Enabled inmemory backend db support"},"xerces-c":{"iconv":"Use iconv (virtual/libiconv) as message loader and transcoder (in general it would be possible to use iconv only as message loader and something else like icu or the native method as transcoder and vice-versa, but this is a less common case and hard to handle)","threads":"Enable threading support through pthread (or other libraries on AIX, IRIX, HPUX, Solars). Highly recommended"},"xml-security-c":{"nss":"Use dev-libs/nss for certain crypto operations (configureable at runtime)","xalan":"Enable support for XSLT and XPath parsing by dev-libs/xalan-c"},"xmlrpc-c":{"abyss":"Build the Abyss mini web-server.","libxml2":"Use dev-libs/libxml2 to parse XML instead of the internal expat library.","threads":"Controls whether to build the Abyss web-server with pthreads or fork 'threading'.","tools":"Build the xmlrpc* tools."},"xmlsec":{"gcrypt":"Install xmlsec-gcrypt library","gnutls":"Install xmlsec-gnutls library","nss":"Install xmlsec-nss library","openssl":"Install xmlsec-openssl library"},"xqilla":{"faxpp":"Use dev-libs/faxpp instead of Xerces-C for certain tasks","htmltidy":"Use app-text/htmltidy when parsing HTML"},"yaz":{"ziffy":"Install ziffy, a promiscuous Z39.50 APDU sniffer"}},"dev-lisp":{"abcl":{"clisp":"Build Armed Bear Common Lisp using GNU CLISP","cmucl":"Build Armed Bear Common Lisp using CMU Common Lisp","jad":"Enable support for disassembling compiled code using JAD"},"clisp":{"hyperspec":"Use local hyperspec instead of online version","new-clx":"Build CLISP with support for the NEW-CLX module which is a C binding to the Xorg libraries","pari":"Build CLISP with support for the PARI Computer Algebra System","svm":"Build CLISP with support for the Support Vector Machine module"},"clx":{"doc":"Builds documentation"},"cmucl":{"nosource":"Don't include source code for CMUCL in installation","source":"Include source code for CMUCL in installation"},"ecls":{"gengc":"Use generational garbage collection (experimental)","libatomic":"Use dev-libs/libatomic_ops library","precisegc":"Use type information during garbage collection (experimental)"},"gcl":{"ansi":"Build a GCL with ANSI support (else build a traditional CLtL1 image)","athena":"Build xgcl - an interface to x11-libs/libXaw"},"sbcl":{"asdf":"Include support for dev-lisp/asdf in SBCL","ldb":"Include support for the SBCL low level debugger","pax_kernel":"Enable if the user plans to run the package under a pax enabled hardened kernel"}},"dev-lua":{"luarocks":{"curl":"Uses net-misc/curl for fetching lua packages instead of net-misc/wget.","openssl":"Uses dev-libs/openssl for verifying lua packages instead of md5sum."},"luvit":{"bundled-libs":"Use bundled versions of some libraries.","system-libs":"Use system version of dev-libs/yajl."},"messagepack":{"luajit":"Use the lua just-in-time compiler dev-lang/luajit instead of dev-lang/lua"}},"dev-ml":{"cairo-ocaml":{"pango":"Enable support for x11-libs/pango"},"deriving-ocsigen":{"type-conv":"Enable type-conv for the syntax extention."},"dose3":{"parmap":"Adds multi-core CPU support via dev-ml/parmap.","rpm4":"Adds support for handling rpm4 files.","zip":"Adds support for handling zip files."},"js_of_ocaml":{"deriving":"Enable dev-ml/deriving support for improving the type safety.","deriving-ocsigen":"Enable deriving-ocsigen for improving the type safety."},"lablgtk":{"glade":"Enable libglade bindings compilation.","gnomecanvas":"Enable libgnomecanvas bindings compilation.","sourceview":"Enable GtkSourceView support"},"lwt":{"react":"Enables support for dev-ml/react: Functional reactive programming (signals, events, etc.).","text":"Enables text mode utilities.","toplevel":"Enables enhanced toplevel."},"ocamlnet":{"cryptokit":"Enables encryption support via dev-ml/cryptokit","httpd":"Enables net-httpd web server component","zip":"Enables netzip support to read/write gzip data using object channels"},"pgocaml":{"batteries":"Enable Batteries support instead of extlib"},"utop":{"camlp4":"Enables camlp4 support."},"uutf":{"utftrip":"Builds and install the utftrip executable: Among other things, reads unicode on stdin and rewrites it on stdout."}},"dev-perl":{"App-Nopaste":{"clipboard":"copying of URLs with -x/--copy","github":"Github authentication","pastebin":"pastebin.com support"},"DBD-mysql":{"embedded":"Support embedded server (libmysqld)"},"DBIx-Class":{"admin":"Modules required for the DBIx::Class administrative library","admin_script":"Modules required for the CLI DBIx::Class interface dbicadmin","deploy":"Modules required for \"deploy\" in DBIx::Class::Storage::DBI and \"deploymen_statements\" in DBIx::Class::Storage::DBI","replicated":"Modules required for DBIx::Class::Storage::DBI::Replicated"},"Eidetic":{"auth":"Enables dev-perl/Apache-AuthTicket based cookie authentication"},"File-HomeDir":{"xdg":"Ensure XDG Semantics for returned paths via x11-misc/xdg-user-dirs"},"GD":{"animgif":"Enable animated gif support"},"Graphics-ColorNames":{"recommended":"Install recommended support modules"},"HTML-Mason":{"modperl":"Enable www-apache/mod_perl support"},"Lab-Measurement":{"xpression":"Install the Xpression measurement framework"},"Net-OpenSSH":{"sftp":"Enable SFTP protocol support."},"Net-SSH2":{"gcrypt":"Use libgcrypt instead of openssl"},"PDL":{"badval":"Enable bad values support","hdf":"Enable HDF (version 4) format support","netpbm":"Enable NETPBM and MPEG support","pdl2":"Build pdf2 shell (requires Devel-REPL)","pgplot":"Enable PGPLOT plotting capabilities","plplot":"Enable plplot plotting capabilities"},"Panotools-Script":{"gui":"Installs GUIs for some tools"},"Sysadm-Install":{"hammer":"Enable hammer() funtion to run a command in the shell and simulate a user hammering the ENTER key to accept defaults on prompts"}},"dev-php":{"PEAR-HTTP_Download":{"minimal":"Do not include support for PEAR-MIME_Type","postgres":"Send postgres LOBs without buffering"},"PEAR-HTTP_Request2":{"curl":"Force dev-lang/php to be compiled with curl extension","fileinfo":"Force dev-lang/php to be compiled with fileinfo extension","ssl":"Force dev-lang/php to be compiled with ssl extension","zlib":"Force dev-lang/php to be compiled with zlib extension"},"PEAR-PHP_Shell":{"auto-completion":"Enable tab-completion"},"ZendFramework":{"cli":"Enables the CLI","doc":"Installs the documentation","examples":"Installs the examples","minimal":"Installs the minimal version without Dojo toolkit, tests and demos"},"pecl-apcu":{"lock_pthreadmutex":"Enable pthread mutex locking","lock_pthreadrw":"Enable pthread read/write locking","lock_semaphore":"Enable semaphore locks instead of fcntl","lock_spinlock":"Enable spin locks (EXPERIMENTAL)"},"pecl-event":{"extra":"Add support of the Libevent extra API"},"pecl-memcached":{"igbinary":"Enable support for the igbinary serializer","json":"Enable support for json serialization"},"pecl-mysqlnd_qc":{"memcached":"Use dev-libs/libmemcached as a storage handler","sqlite":"Use dev-db/sqlite as a storage handler"},"pecl-redis":{"igbinary":"Enables igbinary serialisation support"},"smarty-docs":{"html":"Install the documentation in HTML format","pdf":"Install the documentation in PDF format"}},"dev-python":{"Kivy":{"camera":"Install libraries needed to support camera","garden":"Install garden tool to manage user maintained widgets"},"PyFoam":{"extras":"Enable optional dependencies"},"PyQt4":{"X":"Build bindings for the QtGui module","dbus":"Build bindings for the QtDBus module","declarative":"Build bindings for the QtDeclarative module","designer":"Build bindings for the QtDesigner module and enable the designer plugin","help":"Build bindings for the QtHelp module","kde":"Select media-libs/phonon as Phonon variant (needed for KDE)","multimedia":"Build bindings for the QtMultimedia module","opengl":"Build bindings for the QtOpenGL module","phonon":"Build bindings for the phonon module","script":"Build bindings for the QtScript module","scripttools":"Build bindings for the QtScriptTools module","sql":"Build bindings for the QtSql module","svg":"Build bindings for the QtSvg module","testlib":"Build bindings for the QtTest module","webkit":"Build bindings for the QtWebKit module","xmlpatterns":"Build bindings for the QtXmlPatterns module"},"PyQt5":{"dbus":"Build bindings for the QtDBus module","declarative":"Build bindings for the QtQml/QtQuick modules and enable the qmlscene plugin","designer":"Build bindings for the QtDesigner module and enable the designer plugin","gui":"Build bindings for the QtGui module","help":"Build bindings for the QtHelp module","multimedia":"Build bindings for the QtMultimedia module","network":"Build bindings for the QtNetwork module","opengl":"Build bindings for the QtOpenGL module","positioning":"Build bindings for the QtPositioning module","printsupport":"Build bindings for the QtPrintSupport module","sensors":"Build bindings for the QtSensors module","serialport":"Build bindings for the QtSerialPort module","sql":"Build bindings for the QtSql module","svg":"Build bindings for the QtSvg module","testlib":"Build bindings for the QtTest module","webkit":"Build bindings for the QtWebKit module","websockets":"Build bindings for the QtWebSockets module","widgets":"Build bindings for the QtWidgets module","x11extras":"Build bindings for the QtX11Extras module","xmlpatterns":"Build bindings for the QtXmlPatterns module"},"PyQtMobility":{"contacts":"Build bindings for the QtContacts module","feedback":"Build bindings for the QtFeedback module","gallery":"Build bindings for the QtGallery module","location":"Build bindings for the QtLocation module","messaging":"Build bindings for the QtMessaging module","multimedia":"Build bindings for the QtMultimediaKit module","organizer":"Build bindings for the QtOrganizer module","publishsubscribe":"Build bindings for the QtPublishSubscribe module","sensors":"Build bindings for the QtSensors module","serviceframework":"Build bindings for the QtServiceFramework module","systeminfo":"Build bindings for the QtSystemInfo module","versit":"Build bindings for the QtVersit module"},"amqplib":{"extras":"Install extra tools to generate initial Python mod from an AMQP XML file"},"anyvc":{"bazaar":"Add support for Bazaar","mercurial":"Add support for Mercurial"},"bokeh":{"chaco":"Enable interface for implementing qplot and ggplot like functionality using chaco"},"celery":{"redis":"Enables redis support","sqs":"Enables Amazon SQS transport module for celery","yaml":"Enable support of yaml as a configuration file format","zeromq":"Enable logging and deployment via ZeroMQ"},"cgkit":{"3ds":"Enable support for importing 3D Studio models"},"cvxopt":{"dsdp":"Use interior point library sci-libs/dsdp","glpk":"Use GNU Linear Programming Kit sci-mathematics/glpk"},"dap":{"server":"Enable OpenDAP server support"},"django-extensions":{"graphviz":"Create a diagram of your database entity relationships using dev-python/pygraphviz.","s3":"Upload your media files to S3.","vcard":"Export your users email addresses to the vcard format."},"django-tastypie":{"bip":"An optional serialiser dev-python/biplist","digest":"Library to aid in implementing HTTP Digest Authentication","lxml":"An optional serialiser dev-python/lxml","oauth":"Adds OAuth authentication support","yaml":"An optional serialiser dev-python/yaml"},"django-two-factor-auth":{"yubikey":"Adds support for Yubikeys via django-otp-yubikey"},"docutils":{"glep":"Install support for GLEPs"},"falcon":{"cython":"Build cython-based python modules"},"flask-restful":{"paging":"Enable resource paging support"},"geopy":{"timezone":"Enables localized date support","yahoo":"Enables use of YahooPlaceFinder"},"gmpy":{"mpir":"Use sci-libs/mpir as gmp implementation"},"icalendar":{"doc":"Generate examples and other extra documentation"},"ipython":{"matplotlib":"Add support for dev-python/matplotlib","mongodb":"Enable support for MongoDB via dev-python/pymongo","nbconvert":"Enable support for converting notebooks to various formats using app-text/pandoc","notebook":"Install requirements for the web notebook based on www-servers/tornado","octave":"Enable octave bridge via dev-python/oct2py"},"kaa-base":{"tls":"SSL/TLS support via dev-python/tlslite"},"kazoo":{"gevent":"Enable support for the gevent based handler"},"kombu":{"amqplib":"Enable amqplib support","msgpack":"Enables MessagePack (de)serializer for Python","sqs":"Enables Amazon SQS transport module for Kombu"},"ldaptor":{"web":"enable the web front end for ldaptor (uses dev-python/nevow)"},"lxml":{"beautifulsoup3":"Enable support for Beautiful Soup 3"},"markdown":{"pygments":"Enable fancy pygments support"},"matplotlib":{"excel":"Pull dev-python/xlwt for the exceltools toolkit","gtk3":"Use x11-libs/gtk+:3 instead of x11-libs/gtk+:2","pyside":"Qt support via dev-python/pyside"},"mpmath":{"matplotlib":"Add support for dev-python/matplotlib"},"mwlib":{"server":"Install the daemons required when using mwlib for generating PDFs on a MediaWiki instance."},"mwlib-rl":{"pdftk":"Enable support for app-text/pdftk, required to generate TOCs"},"netaddr":{"cli":"Enable netaddr shell with dev-python/ipython"},"nltk":{"numpy":"Use numpy for the saved word tokenizer"},"nose":{"coverage":"Utilize dev-python/coverage"},"numexpr":{"mkl":"Enable support for Intel Vector Math Library, part of sci-libs/mkl."},"pandas":{"R":"Enable support for R via dev-python/rpy","excel":"Pull a few Python packages for Microsoft Excel i/o","html":"Enable HTML i/o via dev-python/beautifulsoup"},"paste":{"flup":"enable support for flup (and therefore for various wgsi servers and middleware)","openid":"enable OpenID support"},"pillow":{"webp":"Enable support for webp image format."},"py-amqp":{"extras":"Install extra tools to generate initial Python mod from an AMQP XML file"},"pyhamcrest":{"numpy":"Enable optional dependence on dev-python/numpy"},"pylons":{"genshi":"Add optional genshi support","jinja":"Add optional jinja support"},"pymongo":{"mod_wsgi":"Disable the C extension to work with mod_wsgi."},"pyocr":{"cuneiform":"Enable support for the app-text/cuneiform OCR engine","tesseract":"Enable support for the app-text/tesseract OCR engine"},"pypax":{"ptpax":"Enable PT_PAX_FLAGS support.","xtpax":"Enable XATTR_PAX_FLAGS support."},"pyplusplus":{"indexing":"Install indexing_suite_v2 to enhance boost python","numpy":"Generate code for dev-libs/boost-numpy to accelerate arrays"},"pypy":{"low-memory":"Build using PyPy with the engine configured towards low memory footprint. This makes it possible to build PyPy using ~3.5G of RAM on amd64 and ~half of that on x86, at the cost of lengthened build time. Please note that you will need an extra ~1G of extra RAM or swap since the translation memory (unused at the time) is not freed when the C compiler is spawned.","sandbox":"Enable sandboxing functionality","shadowstack":"Use a shadow stack for finding GC roots"},"pypy-bin":{"shadowstack":"Use a shadow stack for finding GC roots"},"pypy3":{"low-memory":"Build using PyPy with the engine configured towards low memory footprint. This makes it possible to build PyPy using ~3.5G of RAM on amd64 and ~half of that on x86, at the cost of lengthened build time. Please note that you will need an extra ~1G of extra RAM or swap since the translation memory (unused at the time) is not freed when the C compiler is spawned.","sandbox":"Enable sandboxing functionality","shadowstack":"Use a shadow stack for finding GC roots"},"pypy3-bin":{"shadowstack":"Use a shadow stack for finding GC roots"},"pyquery":{"beautifulsoup3":"Support BeautifulSoup 3"},"pyrax":{"keyring":"adds support for the keyring auth backend"},"pyside":{"X":"Build QtGui and QtTest modules","declarative":"Build QtDeclarative module","designer":"Build QtDesigner and QtUiTools modules","help":"Build QtHelp module","multimedia":"Build QtMultimedia module","opengl":"Build QtOpenGL module","phonon":"Build phonon module","script":"Build QtScript module","scripttools":"Build QtScriptTools module","sql":"Build QtSql module","svg":"Build QtSvg module","webkit":"Build QtWebKit module","xmlpatterns":"Build QtXmlPatterns module"},"python-stdnum":{"vies":"Enable VIES"},"pyudev":{"pygobject":"Install PyGobject binding","pyqt4":"Install PyQt4 binding","pyside":"Install PySide binding"},"pyyaml":{"libyaml":"enable support for C implementation using libyaml"},"pyzmq":{"green":"Enable gevent compatibility with zeromq"},"pyzor":{"gevent":"Enable support for the gevent based handler","mysql":"Enables mysql support","pyzord":"enable support for pyzord","redis":"Enables redis support"},"rarfile":{"compressed":"Enables the module to support compressed v3 archives by calling the app-arch/unrar."},"rdflib":{"redland":"enable support for Redland triplestore"},"restkit":{"cli":"Install the restcli command line interface/tool, based on dev-python/ipython"},"scrapy":{"boto":"Add support for Amazon S3 via dev-python/boto","ibl":"Use Instace Based Learning alrogirithm for automatic extraction"},"simplecv":{"shell":"Enable the iPython SimpleCV shell"},"spyder":{"ipython":"Add support for dev-python/ipython","matplotlib":"Add support for dev-python/matplotlib","numpy":"Add support for dev-python/numpy","pep8":"Add support for dev-python/pep8","pyflakes":"Add support for dev-python/pyflakes","pylint":"Add support for dev-python/pylint","rope":"Add support for dev-python/rope","scipy":"Add support for sci-libs/scipy","sphinx":"Add support for dev-python/sphinx"},"starcluster":{"epydoc":"Enable build of apidocs in html using epydoc"},"sympy":{"imaging":"Add support for dev-python/imaging","ipython":"Add support for dev-python/ipython","mathml":"Add support for mathml","pyglet":"Use dev-python/pyglet for plots and print preview","system-mpmath":"Use mpmath from portage instead of the bundled one","texmacs":"Add app-office/texmacs interface","theano":"Add support for dev-python/theano"},"tdaemon":{"coverage":"Enable code coverage support"},"translate-toolkit":{"html":"Support conversion between po and html files","ical":"Support conversion between po and ical files","ini":"Support conversion between po and ini files","subtitles":"Support conversion between po and sub files"},"twisted-core":{"serial":"include serial port support"},"vatnumber":{"vies":"Enable VIES"},"ws4py":{"client":"Install client modules","server":"Install server modules"},"wxpython":{"doc":"Install HTML wxWidgets docs and wxpython API reference.","examples":"Install interactive demo module browser and sample applets."},"zsi":{"twisted":"add support for dev-python/twisted"}},"dev-qt":{"assistant":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"designer":{"declarative":"Build the qdeclarativeview plugin","exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","phonon":"Build the phononwidgets plugin","qt3support":"Build the qt3supportwidgets plugin","webkit":"Build the qwebview plugin"},"linguist":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"linguist-tools":{"qml":"Enable QML support in lupdate"},"pixeltool":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"qdbusviewer":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"qt-creator":{"android":"Build plugin for Android devices","autotools":"Enable autotools project manager plugin","baremetal":"Build plugin for bare metal devices","bazaar":"Add support for dev-vcs/bzr version control system","clang":"Build clang-based code model plugin","clearcase":"Add support for IBM ClearCase version control system (requires manual installation of ClearCase client)","cmake":"Enable cmake project manager plugin","fakevim":"Enable support for vim-like key bindings","ios":"Build plugin for Apple iOS devices","madde":"Enable integration with MADDE (Maemo Application Development and Debugging Environment)","mercurial":"Add support for dev-vcs/mercurial version control system","perforce":"Add support for Perforce version control system (requires manual installation of Perforce client)","python":"Enable Python source code editor","qbs":"Enable QBS project manager plugin","qnx":"Build plugin for QNX/Blackberry devices","valgrind":"Add support for memory debugging using dev-util/valgrind","winrt":"Build plugin for WinRT devices"},"qt-meta":{"kde":"Select media-libs/phonon as Phonon variant (needed for KDE)","openvg":"Enable the QtOpenVG module","qt3support":"Enable the Qt3Support library for Qt4"},"qt-mobility":{"bluetooth":"Enable Bluetooth support in QtConnectivity and QtSystemInfo modules","connectivity":"Build the QtConnectivity module","contacts":"Build the QtContacts module","feedback":"Build the QtFeedback module","gallery":"Build the QtGallery module","location":"Build the QtLocation module","messaging":"Build the QtMessaging module","multimedia":"Build the QtMultimediaKit module","networkmanager":"Enable NetworkManager support in QtBearer and QtSystemInfo modules","organizer":"Build the QtOrganizer module","publishsubscribe":"Build the QtPublishSubscribe module","pulseaudio":"Enable PulseAudio support in QtMultimediaKit module","qml":"Build QML bindings","sensors":"Build the QtSensors module","serviceframework":"Build the QtServiceFramework module","systeminfo":"Build the QtSystemInfo module","tools":"Build various useful tools (e.g.: qcrmlgen, servicexmlgen, vsexplorer, ...)","versit":"Build the QtVersit module"},"qt3support":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"qtbearer":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"qtcore":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","glib":"Enable dev-libs/glib eventloop support","qt3support":"Enable the Qt3Support libraries for Qt4. Note that this does not mean you can compile pure Qt3 programs with Qt4."},"qtdbus":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"qtdeclarative":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","gles2":"Use OpenGL ES instead of desktop OpenGL","localstorage":"Build the LocalStorage import for QtQuick (requires QtSql)","qt3support":"Enable the Qt3Support libraries for Qt4. Note that this does not mean you can compile pure Qt3 programs with Qt4.","webkit":"Build the WebView QML component","widgets":"Enable QtWidgets support","xml":"Build the XmlListModel import for QtQuick (requires QtXmlPatterns)"},"qtdemo":{"dbus":"Build QtDBus examples and demos","declarative":"Build QtDeclarative examples and demos","exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","multimedia":"Build QtMultimedia examples and demos","opengl":"Build QtOpenGL examples and demos","openvg":"Build QtOpenVG examples and demos","phonon":"Build Phonon examples and demos","qt3support":"Build Qt3Support examples and demos","webkit":"Build QtWebKit examples and demos","xmlpatterns":"Build QtXmlPatterns examples and demos"},"qtgui":{"egl":"Use EGL instead of default GLX to manage OpenGL contexts","eglfs":"Compile EGL Full Screen/Single Surface support","evdev":"Enable evdev input support","exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","gles2":"Use OpenGL ES 2.0 instead of desktop OpenGL","glib":"Enable dev-libs/glib eventloop support","gtkstyle":"Build a Qt style called GTK+ that mimics the active GTK+ theme","harfbuzz":"Use media-libs/harfbuzz for text shaping (experimental in Qt 5.3.x, default in Qt 5.4.0 and later). If enabled, it can still be disabled at runtime by setting QT_HARFBUZZ environment variable to \"old\".","ibus":"Build the IBus input method plugin","kms":"Build the KMS platform plugin","qt3support":"Enable the Qt3Support libraries for Qt4. Note that this does not mean you can compile pure Qt3 programs with Qt4.","trace":"Build the 'trace' graphicssystem engine which allows to record all drawing operations into a trace buffer. The trace can be replayed later with the qttracereplay tool."},"qthelp":{"compat":"Build the extra compatibility layer required by a few packages, see http://blog.qt.digia.com/blog/2010/06/22/qt-assistant-compat-version-available-as-extra-source-package/","exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"qtmultimedia":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","qml":"Build QML/QtQuick bindings and imports","widgets":"Build the QtMultimediaWidgets module"},"qtnetwork":{"connman":"Enable net-misc/connman-based bearer plugin","networkmanager":"Enable net-misc/networkmanager-based bearer plugin"},"qtopengl":{"egl":"Use EGL instead of default GLX to manage OpenGL contexts on the desktop","exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","gles2":"Use OpenGL ES 2.0 instead of desktop OpenGL","qt3support":"Enable the Qt3Support libraries for Qt4"},"qtopenvg":{"exceptions":"Build with support for exceptions","qt3support":"Enable the Qt3Support libraries for Qt4"},"qtphonon":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","qt3support":"Enable the Qt3Support libraries for Qt4. Note that this does not mean you can compile pure Qt3 programs with Qt4."},"qtpositioning":{"geoclue":"Use enhanced location information from app-misc/geoclue","qml":"Build QML bindings"},"qtquick1":{"designer":"Build plugin for dev-qt/designer","webkit":"Build the WebView import for QtQuick1 (requires QtWebKit)","xml":"Build the XmlListModel import for QtQuick1 (requires QtXmlPatterns)"},"qtquickcontrols":{"widgets":"Enable QtWidgets support"},"qtscript":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","scripttools":"Build the QtScriptTools module (requires QtWidgets)"},"qtsensors":{"qml":"Build QML bindings"},"qtsql":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","qt3support":"Enable the Qt3Support libraries for Qt4"},"qtsvg":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"qttest":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)"},"qtwayland":{"egl":"Use EGL instead of GLX to manage OpenGL contexts","qml":"Build QML/QtQuick bindings","wayland-compositor":"Build Qt compositor for wayland"},"qtwebkit":{"exceptions":"Add support for exceptions - like catching them inside the event loop (recommended by upstream)","gstreamer":"Enable HTML5 audio/video support via media-libs/gstreamer:1.0","gstreamer010":"Enable HTML5 audio/video support via media-libs/gstreamer:0.10","multimedia":"Enable HTML5 audio/video support via dev-qt/qtmultimedia","printsupport":"Enable printing via dev-qt/qtprintsupport","qml":"Build QML/QtQuick bindings","webp":"Add support for WebP image format"},"qtwebsockets":{"qml":"Build QML bindings"},"qtwidgets":{"gles2":"Use OpenGL ES 2.0 instead of desktop OpenGL"}},"dev-ruby":{"barby":{"cairo":"Add support for writing images (PNG, PS, EPS and, if supported, PDF and SVG) using dev-ruby/rcairo. Not available on JRuby.","datamatrix":"Add support for datamatrix using dev-ruby/semacode.","pdf-writer":"Add support for writing PDFs using dev-ruby/pdf-writer.","png":"Add support for writing PNG images using dev-ruby/chunky_png.","prawn":"Add support for writing PDF documents using dev-ruby/prawn.","qrcode":"Add support for QRCode 2D codes using dev-ruby/rqrcode.","rmagick":"Add support for writing images (among others PNG, GIF and JPEG) using dev-ruby/rmagick. Not available on JRuby."},"facter":{"dmi":"Use sys-apps/dmidecode to determine hardware system properties","pciutils":"Use sys-apps/pciutils to determine hardware system properties","virt":"Use app-emulation/virt-what for virtual machine detection"},"maruku":{"highlight":"Enable source code highlighting via dev-ruby/syntax"},"rails":{"asset-pipeline":"Also install the default components for the asset pipeline. These are not required but they are activated automatically in new Rails projects by default."},"rrdtool-bindings":{"graph":"Enable support for graphing functions"},"rspec-core":{"highlight":"Enable source code highlighting via dev-ruby/coderay"},"ruby-sdl":{"image":"Enable media-libs/sdl-image support","mixer":"Enable media-libs/sdl-mixer support","sge":"Enable sdl-sge support"},"rubygems":{"server":"Install support for the rubygems server"}},"dev-scheme":{"bigloo":{"bglpkg":"Build bglpkg binary, which can be use to access scmpkg servers (requires web)","calendar":"Build the embedded library for calendar programming","crypto":"Build the embedded cryptographic library","debug":"Enable extra debug codepaths","doc":"Install Bigloo Manual (HTML docs of Bigloo and r5rs)","emacs":"Build and install the Bigloo Developement Environment for Emacs (aka bee-mode)","gmp":"Adds support for dev-libs/gmp (GNU MP library)","java":"Enable the JVM backend for the Bigloo compiler","mail":"Mail library for email management (e.g. maildir and imap support)","multimedia":"Build multimedia library (e.g. for managing images). Needed for dev-scheme/hop","openpgp":"Build OpenPGP support (requires crypto)","packrat":"Bigloo port of Tony Garnock-Jones' packrat parser (requires srfi1)","sqlite":"Use the system-wide dev-db/sqlite","srfi1":"Build the srfi1 library: List library","srfi27":"Build the srfi27 library: Source of Random Bits (32bit-arch only, requires gmp)","ssl":"Adds support for SSL connections through dev-libs/openssl","text":"Library for dealing with text (e.g. BibTeX parser)","threads":"Enable thread support, it depends on dev-libs/boehm-gc built with threads use flag","web":"Library for web programming (e.g. XML, CGI parsers). Needed for dev-scheme/hop"},"chicken":{"parallel-build":"Enable testing parallel build mode added in 4.7.3 version. Can still be not working"},"gauche-gl":{"cg":"Enable NVidia Cg binding"},"gauche-gtk":{"glgd":"Enable GL graph draw"},"guile":{"debug-freelist":"Include garbage collector freelist debugging code","debug-malloc":"Include malloc debugging code","deprecated":"Enable deprecated features","discouraged":"(implied by deprecated) enable merely discouraged features","networking":"Include networking interfaces","regex":"Include regular expression interfaces"},"hop":{"debug":"Enables building with debug symbols","ssl":"Enable SSL support for hop","threads":"Enable thread support for hop, it depends on dev-scheme/bigloo built with threads use flag."},"kawa":{"awt":"Assume AWT is available","echo2":"Enable support for the Echo2 web toolkit with dev-java/echo2","frontend":"Build \"kawa\" front-end program using sys-libs/readline","jemacs":"Build JEmacs","krl":"Build BRL emulation and KRL","sax":"Assume SAX2 is available with dev-java/sax","servlets":"Build support for generating servlets with dev-java/servletapi","swing":"Assume Swing is available","swt":"Assume SWT is available with dev-java/swt","xqtests":"Support XQuery Test Suite"},"racket":{"backtrace":"Support GC backtrace dumps","futures":"Enable racket/future library for fine-grained hardware parallelism","places":"Enable racket/place library for share-nothing parallelism and message-passing communication. 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Disable this only if you intend to use sysdig purely to work with dumpfiles."},"trace-cmd":{"udis86":"Enable support for dev-libs/udis86 disassembler library"},"universalindentgui":{"html":"Add support for HTML files"}},"dev-vcs":{"bzr":{"sftp":"Enable sftp support"},"bzr-gtk":{"gpg":"Support signing with GnuPG.","nautilus":"Integrate with Nautilus file manager"},"cssc":{"valgrind":"Enable usage of dev-util/valgrind in tests"},"cvs":{"server":"Enable server support"},"cvs2svn":{"bazaar":"Support for dev-vcs/bzr"},"darcs":{"color":"Use ansi color escapes.","http":"Use the pure Haskell HTTP package for HTTP support.","network-uri":"Get Network.URI from the network-uri package.","optimize":"Build with optimizations (-O2).","terminfo":"Use the terminfo package for enhanced console support.","threaded":"Use threading and SMP support."},"fossil":{"json":"Enable the JSON API of Fossil's wiki","lineedit":"Enable line-editing with libedit or readline","sqlite":"Use the system SQLite instead of the bundled one"},"git":{"blksha1":"Use the new optimized SHA1 implementation","cgi":"Install gitweb too","curl":"Support fetching and pushing (requires webdav too) over http:// and https:// protocols","gpg":"Pull in gnupg for signing -- without gnupg, attempts at signing will fail at runtime!","gtk":"Include the gitview contrib tool","highlight":"GitWeb support for app-text/highlight","mediawiki":"Support pulling and pushing from MediaWiki","ppcsha1":"Make use of a bundled routine that is optimized for the PPC arch","subversion":"Include git-svn for dev-vcs/subversion support","webdav":"Adds support for push'ing to HTTP/HTTPS repositories via DAV"},"git-annex":{"android":"Building for Android","androidsplice":"Get TH splices for Android.","assistant":"Enable git-annex assistant and watch command","cryptohash":"Enable use of cryptohash for checksumming","desktop-notify":"Enable desktop environment notifications","dns":"Enable the haskell DNS library for DNS lookup","ekg":"Enable use of EKG to monitor git-annex as it runs.","feed":"Enable podcast feed support","pairing":"Enable pairing of git annex repositories","production":"Enable production build (slower build; faster binary)","quvi":"Enable use of quvi to download videos","s3":"Enable Amazon S3 remote","tahoe":"Enable the tahoe special remote","tdfa":"Use regex-tdfa for wildcards","testsuite":"Embed the test suite into git-annex","torrentparser":"Use haskell torrent library to parse torrent files","webapp":"Enable git-annex webapp","webapp-secure":"Secure webapp","webdav":"Enable webdav remote"},"gitg":{"glade":"Install a glade catalog file","python":"Install Python bindings for those plugins requiring it."},"gitolite":{"contrib":"Install user-contributed files","tools":"Install tools to e.g. convert a Gitosis config to gitolite or one to check if your setup is gitolite >= 3.x compatible"},"gitolite-gentoo":{"contrib":"Install user-contributed files","tools":"Install tools to e.g. convert a Gitosis config to gitolite or one to check if your setup is gitolite >= 3.x compatible"},"mercurial":{"bugzilla":"Support bugzilla integration.","gpg":"Support signing with GnuPG.","tk":"Install dev-lang/tk for hgk script."},"qct":{"bazaar":"Support for dev-vcs/bzr","mercurial":"Support for dev-vcs/mercurial","monotone":"Support for dev-vcs/monotone"},"rabbitvcs":{"caja":"Enable extension for mate-base/caja","cli":"Eanble console based frontend","diff":"Use for diff command dev-util/meld","gedit":"Enable plugin for app-editors/gedit","nautilus":"Enable extension for gnome-base/nautilus","thunar":"Enable extension for xfce-base/thunar"},"subversion":{"ctypes-python":"Build and install Ctypes Python bindings","dso":"Enable runtime module search","extras":"Install extra scripts (examples, tools, hooks)","http":"Enable http support using net-libs/serf","webdav-neon":"Enable WebDAV support using net-libs/neon","webdav-serf":"Enable WebDAV support using net-libs/serf"}},"games-action":{"awesomenauts":{"bundled-libs":"Use the upstream provided bundled libraries."},"beathazardultra":{"bundled-libs":"Use the upstream provided bundled libraries."},"chromium-bsu":{"mixer":"Enables media-libs/sdl-mixer sound backend instead of media-libs/openal one."},"d1x-rebirth":{"awe32":"Enable AWE32 support","demo":"Use the demo data instead of the full game","linguas_de":"Provides German translations for the game's briefings, robot descriptions, and outro of the original campaign","mixer":"Enable mixer support","mpu401":"Enable MPU401 music support","music":"Support for ingame music","opl3-musicpack":"Include alternate version of the game's music, recorded with the Yamaha YMF262 OPL3 soundchip","sc55-musicpack":"Include alternate version of the game's music, recorded with the Roland Sound Canvas SC-55 MIDI module"},"d2x-rebirth":{"demo":"Install games-action/descent2-demodata as well","linguas_de":"Provides German translations for the game's 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default font that xboard uses","zippy":"Enable experimental zippy client"}},"games-emulation":{"generator":{"sdlaudio":"Enable SDL Audio"},"higan":{"profile_accuracy":"Compile a binary optimized for accuracy","profile_balanced":"Compile a binary with balanced optimization","profile_performance":"Compile a binary optimized for performance","udev":"Enable udev based input"},"mednafen":{"debugger":"Build with internal debugger"},"mupen64plus":{"audio-sdl":"Enable SDL audio plugin.","input-sdl":"Enable SDL input plugin.","rsp-hle":"Enable HLE RSP plugin.","ui-console":"Enable default console UI.","ui-m64py":"Enable PyQt4 UI using games-emulation/m64py.","video-glide64mk2":"Enable Glide64mk2 video plugin.","video-rice":"Enable Rice video plugin."},"mupen64plus-core":{"new-dynarec":"Enable new experimental dynamic recompiler implementation (only for x86 and arm)","osd":"Overlay emulator messages using on-screen-display"},"mupen64plus-video-glide64mk2":{"hires":"Support hi-resolution textures (requires dev-libs/boost)"},"pcsxr":{"cdio":"Use libcdio for CD support","sdl":"Use SDL sound backend (other parts of SDL are used unconditionally)"},"snes9x":{"netplay":"Enable playing ROMs over the network (not recommended)","xrandr":"Enable support for the X xrandr extension"},"vbam":{"link":"Enable GBA linking functionality"},"zsnes":{"debug":"Enable the builtin debugger","pax_kernel":"Triggers a paxmarking of the binary"}},"games-engines":{"frobtads":{"tads2compiler":"Build TADS2 compiler","tads3compiler":"Build TADS3 compiler"},"odamex":{"master":"Build master server target (advertises odamex server list)","odalaunch":"Build the wxwidgets based launcher.","portmidi":"Enable portmidi support.","server":"Build server target."},"openmw":{"devtools":"Install development tools like bsatool, esmtool and opencs.","launcher":"Install the launcher for configuring OpenMW."},"renpy":{"development":"Install IDE for game developers and an empty game template"},"scummvm":{"fluidsynth":"compile with support for fluidsynth","mpeg2":"enable mpeg2 codec for cutscenes","unsupported":"enable unsupported and/or broken game engines (you're on your own)"},"solarus":{"doc":"Install doxygen developer documentation.","luajit":"Use LuaJIT instead of default Lua."}},"games-fps":{"alienarena":{"vidmode":"Link against x11-libs/libXxf86vm. Required for full-screen support."},"darkplaces":{"cdsound":"Enables using CD audio in the engine","demo":"Uses the demo data from quake1 (quake1-demodata)","lights":"Install and setup the updated light maps","textures":"Install and setup the updated textures"},"doom-data":{"doomsday":"Add wrapper to run it within doomsday"},"doom3":{"dedicated":"install only as a dedicated game server","roe":"Adds support for the Resurrection of Evil expansion"},"doomsday":{"demo":"Install launcher dor doom1.wad from games-fps/doom-data","doom":"Install launcher for jdoom game","fluidsynth":"Build the FluidSynth sound driver","freedoom":"Install launcher for doom1.wad from games-fps/freefoom","heretic":"Install launcher for jheretic game","hexen":"Install launcher for jhexen game","resources":"Enable support for games-fps/doomsday-resources in jdoom launcher","snowberry":"Install Snowberry doomsday front-end","tools":"Build additional tools such as doomsday-shell, md2tool and texc"},"duke3d":{"demo":"Install the demo files","pic":"disable optimized assembly code that is not PIC friendly"},"duke3d-data":{"gog":"Extract the data from the GOG.com installer."},"eduke32":{"demo":"Install games-fps/duke3d-demodata as well","gtk":"Compile with gtk launcher","offensive":"Include optional XXX texture pack (needs USE 'textures')","opl-musicpack":"Include optional OPL (AdLib) music pack","samples":"Install samples","sc55-musicpack":"Include optional Roland SC-55 music pack","server":"Compile with server support","textures":"Include optional high-resolution textures (needs USE 'opengl')","tools":"Build several tools for modding and development","vpx":"Enable support for WebM VP8 Codecs (needs USE 'opengl')"},"lsdldoom":{"freedoom":"Install games-fps/freedoom wad file","net":"Enables network game support","shareware":"Install games-fps/doom-data for shareware wad file"},"nexuiz":{"maps":"Install the community map pack"},"quake2-icculus":{"demo":"Install the demo files (quake2-demodata) and configure for use","qmax":"Build the pretty version (quake max)","rogue":"Build support for the 'Ground Zero' Mission Pack (rogue)","xatrix":"Build support for the 'The Reckoning' Mission Pack (xatrix)"},"quake3":{"mumble":"Adds player-location (positional audio) support to VoIP","teamarena":"Adds support for Team Arena expansion pack","voice":"Adds VoIP support"},"quake3-bin":{"teamarena":"Adds support for Team Arena expansion pack"},"quake3-demo":{"dedicated":"install only as a dedicated game serer"},"quakeforge":{"wildmidi":"enable libWildMidi support","xdg":"enable XDG support"},"qudos":{"demo":"Install the demo files (quake2-demodata) and configure for use","mods":"Build support for the quake2 mission packs","qmax":"Build the pretty version (quake max)","textures":"Install the enhanced textures (quake2-textures)"},"rott":{"demo":"Install the shareware version"},"sauerbraten":{"server":"Compile server support"},"turtlearena":{"mumble":"Adds player-location (positional audio) support to VoIP","server":"Build server target","voice":"Adds VoIP support"},"unreal-tournament-goty":{"S3TC":"Add the extra fancy textures to UT ... only works on certain cards (nvidia/ati/s3)"},"urbanterror":{"altgamma":"Clearskies - X11-based gamma for Linux","pax_kernel":">Triggers a paxmarking of the binary","server":"Build server target"},"warsow":{"angelscript":"Enable AngelScript support","irc":"Enable IRC support","server":"Build server binaries additionally"},"worldofpadman":{"maps":"Install extra maps (PadPack)"}},"games-kids":{"crayon-physics":{"bundled-libs":"Use the upstream provided bundled libraries."}},"games-misc":{"katawa-shoujo":{"system-renpy":"Use games-engines/renpy instead of the bundled one (experimental)"},"little-inferno":{"bundled-libs":"Use bundled libraries."},"xcowsay":{"fortune":"Installs the fortune-mod xcow binary"}},"games-mud":{"tf":{"atcp":"enable ATCP support.","gmcp":"enable GMCP support.","option102":"enable telnet option 102 support."}},"games-puzzle":{"cuyo":{"music":"Enable playing of background music"},"jag":{"editor":"Install level editor"},"nightsky":{"bundled-libs":"Use the upstream provided bundled libraries."},"pingus":{"music":"Enable playing of background music"},"tiny-and-big":{"bundled-libs":"Use the upstream provided bundled libraries."},"xlogical":{"alt_gfx":"Use alternate graphics which are closer to the original Amiga version"}},"games-roguelike":{"FTL":{"bundled-libs":"Use bundled libraries."},"angband":{"sound":"Enable and install sounds"},"stone-soup":{"luajit":"Use dev-lang/luajit as scripting backend instead of dev-lang/lua.","ncurses":"Enable for console (uses ncurses) based build. (can be enabled on top of tiles)","tiles":"Enable for graphical (tiled) build. (can be enabled on top of ncurses)"},"tomenet":{"server":"Compile server support"}},"games-rpg":{"a-bird-story":{"bundled-libs":"Use bundled libraries"},"arx-fatalis-data":{"gog":"Extract the data from the GOG.com installer."},"arx-libertatis":{"c++0x":"Build ROOT using the C++11 standard.","crash-reporter":"Build a dev-qt/qtgui-based tool that allows to submit crash information to the upstream backtracker.","debug":"Enable asserts and debug logging.","static":"Link libraries statically, currently only media-libs/glew","tools":"Build tools that can extract the game's data and save files.","unity-build":"Build everything in one big source file, allowing for faster build times and better optimizations at the cost of higher memory usage."},"bastion":{"bundled-libs":"Use the upstream provided bundled libraries."},"daimonin-client":{"music":"Install extra music"},"drascula":{"sound":"Install optional audio files"},"dreamweb":{"doc":"High-resolution scans of the written material in the original UK game box"},"dungeon-defenders":{"bundled-libs":"Use the upstream provided bundled libraries."},"eternal-lands-data":{"bloodsuckermaps":"Will install Bloodsucker's Maps in place of the official map files.","music":"Adds in-game music.","sound":"Adds in-game sound effects."},"grimrock":{"bundled-libs":"Use bundled libraries."},"kqlives":{"cheats":"Enable cheating mode"},"nwn":{"hou":"Install the Hordes of the Underdark expansion pack","sou":"Installs the Shadows of Undrentide expension pack"},"nwn-data":{"hou":"Install the Hordes of the Underdark expansion pack","nowin":"For those people who cant grab the 1.2 gigs of data files from a windows partition","sou":"Installs the Shadows of Undrentide expension pack"},"sumwars":{"tools":"Builds editor tools"},"to-the-moon":{"bundled-libs":"Use bundled libraries"},"valyriatear":{"editor":"Compile the Qt editor along with the game"}},"games-simulation":{"corsix-th":{"ffmpeg":"Use ffmpeg for playing in-game cutscenes.","mapeditor":"Build the map editor (needs opengl enabled!).","midi":"Use SDL mixer and timidity for in-game music.","opengl":"Use OpenGL for rendering.","sdl":"Use SDL for rendering.","sound":"Use SDL mixer for in-game sound.","truetype":"Use high quality fonts."},"flightgear":{"dbus":"Enable screensaver DBus interaction","jsbsim":"Enables JSBSim Flight Dynamics Model (default)","oldfdm":"Enables deprecated Flight Dynamics Models (LaRCsim, UIUC)","qt5":"Builds Qt5 launcher application","udev":"Enables event-based Input devices through virtual/udev","utils":"Builds various utilities (fgpanel, terrasync, fgviewer among others)","yasim":"Enables YASim Flight Dynamics Model"},"openttd":{"aplaymidi":"Enables midi music in game, using aplaymidi as an external player","dedicated":"Build only the openttd server, and not the client.","lzo":"Enables LZO compression for savegames. This is only needed to load extremely old savegames. (versions before 0.2)","openmedia":"Enables the free open media sets: OpenGFX, OpenSFX, OpenMSX, removing the requirement for proprietary TTD assets to play OpenTTD."},"singularity":{"music":"Install music files"}},"games-sports":{"speed-dreams":{"xrandr":"Enable support for the X xrandr extension"},"xmoto":{"editor":"Depend on inkscape, scripts to convert svg to level (svg2lvl)"}},"games-strategy":{"0ad":{"editor":"Include Atlas scenario editor projects","lobby":"Enable the use of net-libs/gloox and the multiplayer lobby","nvtt":"Support for some uncompressed data formats via media-gfx/nvidia-texture-tools (might be needed for some mods)"},"defcon-demo":{"system-libs":"Use system libraries instead of the ones included in the upstream distribution."},"freeciv":{"aimodules":"Support for dynamically loadable AI modules (server-side)","auth":"Add authentication capability via mysql, postgres or sqlite3","mapimg":"Additional mag image toolkit via media-gfx/imagemagick","modpack":"Build the freeciv-modpack-program to download/install mods","server":"Enable server support. Disabling this will also make it impossible to start local games.","sound":"Add support for sound provided by media-libs/sdl-mixer","system-lua":"Use dev-lang/lua instead of the bundled liblua"},"freeorion":{"cg":"Add support for NVIDIA toolkit plugin"},"freesynd":{"devtools":"Build development tools"},"heroes3":{"maps":"Installs optional map data","music":"Installs optional music data","sounds":"Installs optional sound data"},"ja2-stracciatella":{"editor":"Adds necessary file to run the editor","linguas_ru_gold":"Support for russian gold ja2 version"},"liquidwar6":{"doc":"Convert the info pages to html","gles2":"Enable OpenGL ES 2.0 support","gtk":"Used to display error/critical messages","maps":"Install extra maps","ogg":"Enable mod-ogg via media-libs/sdl-mixer (currently the only sound provider)","readline":"Enable interactive script shell for hacking"},"megaglest":{"editor":"Build map editor","fribidi":"Enable FriBIDi support","model-viewer":"Build model viewer","streflop":"Use the library streflop. Out of synchs may occur if not enabled.","tools":"Build model import/export tools","unicode":"Use unicode strings for wxwidgets","wxuniversal":"Use the wxUniversal port which implements the various GUI controls by drawing them itself"},"naev":{"mixer":"Enables media-libs/sdl-mixer sound backend in addition to media-libs/openal one."},"openra":{"cg":"NVIDIA toolkit plugin","tools":"Install some development tools such as editor."},"s25rttr":{"glfw":"Compile another video driver based on media-libs/glfw."},"seven-kingdoms":{"network":"Enable support for multiplayer via media-libs/sdl-net"},"ufo-ai":{"editor":"Build map editor"},"uqm":{"music":"download and install music files (large)","remix":"download and install music remix files (large)","voice":"download and install voice files (large)"},"warzone2100":{"qt4":"Use qt-gui/qt-opengl for backend rendering instead of sdl"},"wesnoth":{"fribidi":"Support for right-to-left languages","server":"Enable compilation of server"}},"games-util":{"gslist":{"web":"Enable the web interface"},"pyfa":{"graph":"Enable support for graphs"},"wit":{"fuse":"Enable image mount support via fuse"}},"gnome-base":{"gconf":{"ldap":"Build backend which enables default mail accounts, addressbooks and calendars for Evolution to be configured using each user's LDAP entry.\""},"gdm":{"audit":"Enable support for sys-process/audit","fprint":"Enables experimental fingerprint authentication using sys-auth/fprintd","plymouth":"Enable support for smooth transition from sys-boot/plymouth"},"gnome":{"classic":"Install gnome-extra/gnome-shell-extensions for the Gnome Shell Classic mode","extras":"Install additional GNOME applications"},"gnome-common":{"autoconf-archive":"Pull in sys-devel/autoconf-archive for ax_*.m4 files instead of installing them from the gnome-common tarball"},"gnome-control-center":{"colord":"Support color management using x11-misc/colord","gnome-online-accounts":"Enable configuration panel for net-libs/gnome-online-accounts accounts","i18n":"Enable support for enhanced input methods through app-i18n/ibus"},"gnome-desktop":{"license-docs":"Install help files documenting GNOME's licenses"},"gnome-extra-apps":{"games":"Install Gnome Games","shotwell":"Install the media-gfx/shotwell photo manager","tracker":"Install the app-misc/tracker indexer and the GNOME packages that require it"},"gnome-keyring":{"ssh-agent":"Use GNOME Keyring to unlock SSH keys. Recommended unless you are using ECDSA or Ed25519 keys."},"gnome-light":{"gnome-shell":"Install gnome-base/gnome-shell and x11-wm/mutter for the standard GNOME 3 desktop mode"},"gnome-session":{"gconf":"Optional support for gnome-base/gconf configuration storage system"},"gnome-settings-daemon":{"colord":"Support color management using x11-misc/colord","i18n":"Enable support for enhanced input methods through app-i18n/ibus","openrc-force":"Skip systemd dependency (#480336), enabling this flag will become your setup to be fully unsupported by upstream and downstream Gnome team. Do not try to enable it unless completely needed","packagekit":"Enable support for the distro-neutral package manager GUI app-admin/packagekit","short-touchpad-timeout":"Change the touchpad timeout so that it's effective for fast typists"},"gnome-shell":{"i18n":"Enable support for enhanced input methods through app-i18n/ibus","openrc-force":"Skip systemd dependency (#480336), enabling this flag will become your setup to be fully unsupported by upstream and downstream Gnome team. Do not try to enable it unless completely needed"},"gvfs":{"afp":"Enables support for accessing AFP (Apple Filing Protocol) network shares","archive":"Enables support for accessing files in archives transparently via app-arch/libarchive","bluray":"Enable playback of Blu-ray filesystems using media-libs/libbluray","fuse":"Enables fuse mount points in $HOME/.gvfs for legacy application access","gnome-online-accounts":"Enable configuration panel for net-libs/gnome-online-accounts accounts","http":"Enable the HTTP/DAV backend using net-libs/libsoup-gnome","libsecret":"Enable app-crypt/libsecret support to store login credentials.","udev":"Enable udev base replacement code for cdda feature"},"libglade":{"tools":"Install libglade-convert Python script."},"libgnome-keyring":{"vala":"Enable bindings for dev-lang/vala"},"libgnomecanvas":{"glade":"Enable glade support"},"libgtop":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"librsvg":{"tools":"Build svg viewer tool"},"nautilus":{"packagekit":"Use packagekit to search for programs to open unknown file types","previewer":"Use gnome-extra/sushi to preview files from the file mananger","sendto":"Enable the nautilus-sendto extension to send files to various locations/devices","tracker":"Add support for app-misc/tracker search"},"orbit":{"pic":"Force libname-server-2 to be built as PIC; needed on hardened systems"}},"gnome-extra":{"avant-window-navigator":{"gconf":"Enable GConf as configuration backend"},"avant-window-navigator-extras":{"gconf":"Enable GConf as configuration backend"},"cinnamon":{"l10n":"Pull in gnome-extra/cinnamon-translations for localization support"},"cinnamon-control-center":{"colord":"Support color management using x11-misc/colord","socialweb":"Add support for desktop background images from Flickr using net-libs/libsocialweb"},"cinnamon-session":{"gconf":"Support old autostart conditions which use gnome-base/gconf"},"cinnamon-settings-daemon":{"colord":"Support color management using x11-misc/colord"},"evolution-data-server":{"api-doc-extras":"Build documentation for private APIs","gnome-online-accounts":"Enable using net-libs/gnome-online-accounts for authorization","weather":"Enable optional weather calendar support"},"gdesklets-core":{"dbus":"Enable gDesklets Controls to use DBus"},"gnome-boxes":{"usbredir":"Use sys-apps/usbredir to redirect USB devices to another machine over TCP"},"gnome-color-manager":{"packagekit":"Enable support for the distro-neutral package manager GUI app-admin/packagekit"},"gnome-commander":{"chm":"Enable metadata support for Microsoft Compiled HTML Help files","gsf":"Add metadata support for OLE, OLE2 and ODF","pdf":"Add metadata support for PDF","python":"Add support for python plugins\"","taglib":"Add metadata support for ID3, Vorbis, FLAC and APE"},"gnome-do-plugins":{"banshee":"Enables the Banshee (media-sound/banshee) plugin"},"gnome-dvb-daemon":{"totem":"Build a plugin for media-video/totem","vala":"Add support for dev-lang/vala"},"gnome-system-monitor":{"systemd":"Display sys-apps/systemd metadata, e.g. unit names, for running processes"},"gucharmap":{"vala":"Enable bindings for dev-lang/vala"},"libgda":{"canvas":"Enable support for x11-libs/goocanvas","http":"Enable embedded net-libs/libsoup based server","json":"Enable support for JSON format","libsecret":"Enable app-crypt/libsecret support to store login credentials","mdb":"Enable support for Microsoft Access database using app-office/mdbtools","reports":"Install tools for generating graphical reports","sourceview":"Enable support for x11-libs/gtksourceview"},"libgsf":{"gtk":"Enable use of gdk in thumbnailer"},"nemo":{"l10n":"Pull in gnome-extra/cinnamon-translations for localization support","packagekit":"Use packagekit to search for programs to open unknown file types","tracker":"Add support for app-misc/tracker search"},"nm-applet":{"gconf":"Build tool for migrating gconf settings from nm-applet-0.8.x","modemmanager":"Enable support for mobile broadband devices using net-misc/modemmanager"},"sushi":{"office":"Support viewing file formats such as generated by app-office/libreoffice"},"synapse":{"plugins":"Build support for plugins using librest","zeitgeist":"Add support for Zeitgeist event tracking system"},"zeitgeist":{"datahub":"Use build datahub for passive event injection","downloads-monitor":"Monitor the XDG_DOWNLOAD_DIRECTORY","extensions":"Use gnome-extra/zeitgeist-extentions to enhance the internal routines","fts":"Enable the full text search extension","plugins":"Use gnome-extra/zeitgeist-datasources to enable numerous packages to inject events","sql-debug":"Enable SQL debugging","telepathy":"Enable telepathy framework as data source"},"zeitgeist-datahub":{"download":"Monitor XDG download directory","telepathy":"Telepathy logging support for 1-to-1 chats, calls and file transfers"},"zeitgeist-datasources":{"bzr":"Zeitgeist plugin for dev-vcs/bzr as data source","chromium":"Zeitgeist plugin for www-client/chromium as data source","emacs":"Zeitgeist plugin for emacs as data source","firefox":"Zeitgeist plugin for www-client/firefox as data source","geany":"Zeitgeist plugin for dev-util/geany as data source","telepathy":"Zeitgeist plugin for telepathy framework as data source","thunderbird":"Zeitgeist plugin for mail-client/thunderbird as data source","tomboy":"Zeitgeist plugin for app-misc/tomboy as data source","vim":"Zeitgeist plugin for vim as data source","xchat":"Zeitgeist plugin for net-irc/xchat-gnome as data source"},"zeitgeist-extensions":{"fts":"Enable the full text search","geolocation":"Add the physical location of the computer at the moment when events are inserted","memprofile":"Memory profiling extension","sqldebug":"debug zeitgeists sql statements","tracker":"Notify Tracker on events"}},"gnustep-apps":{"gemas":{"projectcenter":"Build and install plugin for gnustep-apps/projectcenter"},"gnumail":{"emoticon":"Enable extra Emoticon Bundle to see smiley's in e-mail messages"},"gworkspace":{"gwmetadata":"Enable the metadata indexing and searching system"}},"gnustep-base":{"gnustep-back-art":{"xim":"Enable X11 XiM input method"},"gnustep-back-cairo":{"xim":"Enable X11 XiM input method"},"gnustep-back-xlib":{"xim":"Enable X11 XiM input method"},"gnustep-gui":{"speech":"Audio support using app-accessibility/flite"},"gnustep-make":{"libobjc2":"Enables use of the GNUstep Objective-C runtime (gnustep-base/libobjc2) with non-fragile ABI and sys-devel/clang compiler","native-exceptions":"Enables use of the native Objective-C exception support (@try/@catch/@finally) built-in objective-c exceptions with compilers that support it"},"libobjc2":{"boehm-gc":"Enable Hans Boehm's garbage collector (dev-libs/boehm-gc). Not recommended by upstream"}},"gpe-base":{"gpe":{"games":"Builds and installs GPE games."}},"kde-base":{"ark":{"archive":"Enable support for a variety of archive formats through libarchive"},"cantor":{"R":"Enable dev-lang/R backend support","analitza":"Enable kde-base/analitza backend support","qalculate":"Enable sci-libs/libqalculate backend support"},"dolphin":{"thumbnail":"Enables video thumbnails generation for kde-base/dolphin file manager."},"dolphin-plugins":{"bazaar":"Enable support for the bazaar VCS","mercurial":"Enable support for the mercurial VCS"},"gwenview":{"kipi":"Support for the KDE Image Plugin Interface."},"kaccessible":{"speechd":"Enable support for the speech-dispatcher speech synthesizer"},"kactivities":{"nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)"},"kalzium":{"editor":"Enable the embedded molecule editor/viewer","solver":"Enable the equation solver"},"kde-meta":{"kdepim":"Pull in KDE PIM","sdk":"Pull in developer-specific meta-packages"},"kdeartwork-kscreensaver":{"eigen":"Enable various arithmetic screensavers which use Eigen2 for computations.","kexiv2":"Enable image rotation based on exif tags with libkexiv2."},"kdebase-data":{"wallpapers":"Install the KDE wallpapers"},"kdebase-kioslaves":{"sftp":"Enable SFTP protocol support using net-libs/libssh"},"kdebase-meta":{"display-manager":"Pull in a graphical display manager","wallpapers":"Install the KDE wallpapers"},"kdebase-runtime-meta":{"crash-reporter":"Builds a gui tool to submit crash information to the upstream backtracker","nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)"},"kdebase-startkde":{"wallpapers":"Install the KDE wallpapers"},"kdebindings-meta":{"csharp":"Enable C# language bindings for KDE and Qt"},"kdelibs":{"nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)","opengl":"Enable OpenGL support for Plasma (GLApplet)"},"kdenetwork-meta":{"ppp":"Enable support for net-dialup/ppp."},"kdepim-meta":{"akonadi":"Enables support for kde-base/akonadi"},"kdepim-runtime":{"facebook":"Facebook service integration via net-libs/libkfbapi","google":"Google service integration via net-libs/libkgapi"},"kdepimlibs":{"prison":"Enable support for QRcodes in contacts"},"kdeplasma-addons":{"attica":"Enable support for dev-libs/libattica","desktopglobe":"Enable Desktop Globe wallpaper using kde-base/marble","fcitx":"Use fcitx input method via app-i18n/fcitx","ibus":"Use ibus input method via app-i18n/ibus","json":"Enable JSON support via dev-libs/qjson","kdepim":"KDE PIM integration via kde-base/kdepimlibs","nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)","oauth":"Enable OAuth support via dev-libs/qoauth","qalculate":"Enable Qalculate runner using sci-libs/libqalculate","qwt":"Enable applets that use x11-libs/qwt:5","scim":"Enable applets that use app-i18n/scim"},"kdeutils-meta":{"floppy":"Install kde-base/kfloppy to format and create DOS or ext2fs filesystems in a floppy."},"kdm":{"consolekit":"Enables support for authorization using consolekit"},"kfilemetadata":{"epub":"Adds support for reading EPUB ebook metadata","mobi":"Adds support for reading MOBI ebook metadata"},"kget":{"bittorrent":"Enable bittorrent transfer plugin through net-libs/libktorrent","gpg":"Support for signature verificatopm by QGpgME via kde-base/kdepimlibs","mms":"Enable MMS (Microsoft Media Server) plugin through media-libs/libmms","nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)","webkit":"Enable KdeWebkit browser plugin using kde-misc/kwebkitpart"},"kig":{"scripting":"Support Python scripting"},"kimono":{"akonadi":"Compile bindings for Akonadi","nepomuk":"Compile bindings for Nepomuk","plasma":"Compile bindings for KDE's Plasma"},"klipper":{"prison":"Enable support for barcodes/QRcodes"},"kmix":{"canberra":"Enable sound event support using media-libs/libcanberra"},"konqueror":{"bookmarks":"Add dependency on bookmark package."},"kopete":{"addbookmarks":"Automatically add incoming urls to bookmarks.","autoreplace":"Automatically replace selected text","contactnotes":"Enables writing personal notes for contacts.","gadu":"Enable the Gadu protocol handler.","groupwise":"Enable the Groupwise protocol handler.","highlight":"Allows you to specify highlights on specific events.","history":"Enables saving chat history.","latex":"Embed latex formatted text into messages.","meanwhile":"Enable the Sametime protocol handler.","nowlistening":"Shows song you currently listen to in your status/etc. Bindings for many players.","otr":"Allows crypting your chat (drugs and talking nonsense are considered as good alternatives ;]).","pipes":"Send messages to external pipe.","privacy":"Filter for incoming messages","skype":"Enable Skype protocol handler (not fully functional yet).","sms":"Enable SMS sendinge functionality.","statistics":"Everybody loves statistic graphs, especially cake ones. ;]","testbed":"Enable the testbed protocol.","texteffect":"Various fancy text effects for your messages (don't ever consider writing us with this enabled ;]).","translator":"Translate incoming and outgoing messages.","urlpicpreview":"Enables in conversation pictures preview.","webpresence":"Show your status and some more information on web.","winpopup":"Enable pop-up messages sending on windows. (same as good old \"net send\" messages ;])","yahoo":"Enable yahoo protocol support.","zeroconf":"Enable Link-Local Messaging via the bonjour protocol."},"korundum":{"akonadi":"Compile bindings for Akonadi","kate":"Compile bindings for KDE Advanced Text Editor","nepomuk":"Compile bindings for Nepomuk","okular":"Compile bindings for kde-base/okular"},"krdc":{"rdesktop":"Enable runtime dependency for net-misc/rdesktop","telepathy":"Enable desktop sharing through a telepathy client"},"krfb":{"ktp":"Enable displaying of KDE Telepathy contacts","telepathy":"Enable desktop sharing through a telepathy client"},"ksnapshot":{"kipi":"Support for the KDE Image Plugin Interface."},"kstars":{"fits":"Enable support for the FITS image format through cfitsio","indi":"Enable support for Astronomical control library using libindi"},"kwalletd":{"gpg":"Support wallets with GnuPG encryption additionally to default blowfish-encrypted file"},"kwin":{"gles":"Enable support for GLES."},"libplasmaclock":{"kdepim":"KDE PIM integration via kde-base/kdepimlibs"},"lokalize":{"nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)"},"marble":{"designer-plugin":"Enable designer plugin","phonon":"Enable sound support via media-libs/phonon","shapefile":"Enable support for ESRI shapefiles","zip":"Enable support for reading and displaying .kmz files"},"nepomuk-core":{"epub":"Adds support for reading EPUB ebook metadata","migrator":"Installs a kde-base/baloo migration tool"},"okular":{"chm":"Enable support for Microsoft Compiled HTML Help files","dpi":"DPI detection support for PDF rendering via x11-libs/libkscreen","ebook":"Add E-Book support","mobi":"Add mobipocket support"},"oxygen-icons":{"sources":"Additionally install the svg sources of the bitmap icons (needed for redistribution)"},"perlkde":{"akonadi":"Compile bindings for Akonadi","attica":"Compile bindings for dev-libs/libattica","kate":"Compile bindings for KDE Advanced Text Editor","nepomuk":"Compile bindings for Nepomuk","okular":"Compile bindings for kde-base/okular"},"perlqt":{"declarative":"Compile bindings for dev-qt/qtdeclarative.","multimedia":"Compile bindings for dev-qt/qtmultimedia.","phonon":"Compile bindings for Phonon.","qimageblitz":"Compile bindings for media-libs/qimageblitz.","qscintilla":"Compile bindings for x11-libs/qscintilla.","qthelp":"Compile bindings for QtHelp from dev-qt/qthelp.","qwt":"Compile bindings for x11-libs/qwt.","webkit":"Compile bindings for dev-qt/qtwebkit."},"plasma-workspace":{"json":"Enable JSON support via dev-libs/qjson","kdepim":"KDE PIM integration via kde-base/kdepimlibs","nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)","qalculate":"Enable Qalculate runner using sci-libs/libqalculate"},"powerdevil":{"pm-utils":"Adds support for suspend/resume the system through sys-power/pm-utils"},"poxml":{"extras":"Build po2xml and swappo tools"},"pykde4":{"akonadi":"Compile bindings for Akonadi","nepomuk":"Compile bindings for Nepomuk"},"qtruby":{"declarative":"Compile bindings for dev-qt/qtdeclarative.","phonon":"Compile bindings for Phonon.","qscintilla":"Compile bindings for x11-libs/qscintilla.","qwt":"Compile bindings for x11-libs/qwt.","webkit":"Compile bindings for dev-qt/qtwebkit."},"qyoto":{"phonon":"Compile bindings for Phonon.","qscintilla":"Compile bindings for x11-libs/qscintilla.","webkit":"Compile bindings for dev-qt/qtwebkit."},"smokekde":{"akonadi":"Compile bindings for Akonadi","attica":"Compile bindings for dev-libs/libattica","kate":"Compile bindings for KDE Advanced Text Editor","nepomuk":"Compile bindings for Nepomuk","okular":"Compile bindings for kde-base/okular"},"smokeqt":{"declarative":"Compile bindings for dev-qt/qtdeclarative.","multimedia":"Compile bindings for dev-qt/qtmultimedia.","phonon":"Compile bindings for Phonon.","qimageblitz":"Compile bindings for media-libs/qimageblitz.","qscintilla":"Compile bindings for x11-libs/qscintilla.","qthelp":"Compile bindings for QtHelp from dev-qt/qthelp.","qwt":"Compile bindings for x11-libs/qwt.","webkit":"Compile bindings for dev-qt/qtwebkit.","xmlpatterns":"Compile bindings for dev-qt/qtxmlpatterns."},"step":{"qalculate":"Enable the libqalculate library for unit conversion"},"systemsettings":{"kscreen":"Use kde-misc/kscreen for screen management","nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)"}},"kde-frameworks":{"kdesignerplugin":{"designer":"Build KF5 widgets plugin for QtDesigner","webkit":"Build kdewebkit plugin for QtDesigner"},"kimageformats":{"eps":"Support the EPS graphics file format"},"kinit":{"caps":"Capabilities support for improved security and better OOM handling"},"knotifyconfig":{"phonon":"Add sound support via media-libs/phonon"},"kxmlgui":{"attica":"Enable support for kde-frameworks/attica"},"networkmanager-qt":{"teamd":"Enable Teamd control support"},"plasma":{"egl":"Enable EGL support"},"sonnet":{"aspell":"Enable the app-text/aspell spell-checking backend","hunspell":"Enable the app-text/hunspell spell-checking backend"}},"kde-misc":{"kcm-grub2":{"hwinfo":"Used to work out supported framebuffer resolutions","imagemagick":"Create splash images compatible with GRUB2","packagekit":"Add support for packagekit integration"},"kepas":{"oscar":"Enables ICQ (AIM) support."},"krusader":{"bookmarks":"Add dependency on bookmark package."},"networkmanagement":{"openconnect":"Build support for the OpenConnect VPN client"},"plasma-nm":{"modemmanager":"Enable support for mobile broadband devices","openconnect":"Build support for the OpenConnect VPN client"},"tellico":{"addressbook":"Add support for kdepim addressbook (kabc)","nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)"}},"lxde-base":{"lxdm":{"consolekit":"Enables support for authorization using consolekit","gtk3":"Use GTK+3 instead of 2"}},"lxqt-base":{"lxqt-meta":{"admin":"Install app-admin/lxqt-admin","filemanager":"Install x11-misc/pcmanfm-qt file manager","icons":"Install an icon theme","lightdm":"Install x11-misc/lightdm display manager","lximage":"Install media-gfx/lximage-qt image viewer","minimal":"Do not install x11-wm/openbox window manager","oxygen":"Prefer kde-base/oxygen-icons (default)","powermanagement":"Install lxqt-base/lxqt-powermanagement package","sddm":"Install x11-misc/sddm display manager","ssh-askpass":"Install net-misc/lxqt-openssh-askpass user password prompt tool"},"lxqt-panel":{"clock":"Build clock plugin","colorpicker":"Build colorpicker plugin","cpuload":"Build cpuload plugin","desktopswitch":"Build desktopswitch plugin","dom":"Build dom plugin","kbindicator":"Build kbindicator plugin","mainmenu":"Build mainmenu plugin","mount":"Build mount plugin","networkmonitor":"Build networkmonitor plugin","quicklaunch":"Build quicklaunch plugin","screensaver":"Build screensaver plugin","sensors":"Build sensors plugin","showdesktop":"Build showdesktop plugin","sysstat":"Build sysstat plugin","taskbar":"Build taskbar plugin","teatime":"Build teatime plugin","tray":"Build tray plugin","volume":"Build volume plugin","worldclock":"Build worldclock plugin"}},"mail-client":{"alot":{"doc":"Install user manual and API documentation"},"alpine":{"chappa":"enhance alpine by applying Eduardo Chappa's patches","onlyalpine":"installs only the alpine binary, so it does not collied with app-editors/pico and/or mail-client/pine","passfile":"Adds support for caching passwords into a file between sessions","smime":"Enable support for S/MIME","topal":"Enable support for net-mail/topal"},"balsa":{"crypt":"Adds support for GnuPG encryption","gtkspell":"Use gtkspell for dictionary support","rubrica":"Adds support for app-office/rubrica addressbook"},"claws-mail":{"archive":"Enable archiving plugin","bogofilter":"Build mail-filter/bogofilter plugin","dillo":"Enables support for inline HTTP email viewing with a plugin (which depends on the www-client/dillo browser)","gdata":"Enable plugin for access to Google data providers","gtk3":"Build support for GTK+3","libcanberra":"Enable sound notification in connection with USE=notification","libindicate":"Enable notification through DBUS in connection with USE=notification","libnotify":"Enable notification on the desktop in connection with USE=notification","notification":"Notification for new mail in different way, see also USE flags libcanberra, libindicate and libnotify","pgp":"Enable PGP support","smime":"Build plugin for S/MIME support","spam-report":"Enable plugin for spam reporting to various services","spamassassin":"Build mail-filter/spamassassin plugin","valgrind":"Add support for memory debugging using valgrind"},"evolution":{"bogofilter":"Build mail-filter/bogofilter plugin","crypt":"Enable GPG encryption support using app-crypt/gnupg and app-crypt/pinentry","highlight":"Enable text highlighting plugin","ldap":"Enable support for fetching contacts from an LDAP or Active Directory server using net-nds/openldap","map":"Enable support for displaying contacts on a map inside evolution using media-libs/libchamplain","spamassassin":"Build mail-filter/spamassassin plugin","weather":"Enable optional weather calendar support"},"mail-notification":{"sylpheed":"Enable support for MH mailboxes used by mail-client/sylpheed"},"mutt":{"gpg":"Enable support for app-crypt/gpgme","pop":"Enable support for pop","sidebar":"Use the vanilla tree + sidebar patch","smime":"Enable support for smime","smtp":"Enable support for smtp","tokyocabinet":"Enable tokyocabinet database backend for header caching"},"nail":{"kerberos":"If network is enabled, this adds support for GSSAPI login on IMAP through virtual/kerberos.","net":"Enable support for network protocols (POP, IMAP and SMTP). If you only need to send mail with the local Transport Agent, disabling this will get you support for only /usr/sbin/sendmail call.","ssl":"If network is enabled, this adds support for S/MIME and SSL/TLS-powered protocols through dev-libs/openssl."},"novell-groupwise-client":{"novell-jre":"Use the Java Runtime Environment provided by Novell"},"squirrelmail":{"filter":"Enable mail-filter/amavisd-new filtering"},"sylpheed":{"oniguruma":"Use dev-libs/oniguruma for regular expression"},"thunderbird":{"bindist":"Disable official Thunderbird branding (icons, name) which are not binary-redistributable according to upstream.","crypt":"Enable encryption support with enigmail","custom-optimization":"Fine-tune custom compiler optimizations (-Os, -O0, -O1, -O2, -O3)","lightning":"Enable calendar support","minimal":"Remove the software development kit and headers","mozdom":"Enable Mozilla's DOM inspector","system-cairo":"Use the system-wide x11-libs/cairo instead of bundled.","system-icu":"Use the system-wide dev-libs/icu instead of bundled.","system-jpeg":"Use the system-wide media-libs/libjpeg-turbo instead of bundled.","system-libvpx":"Use the system-wide media-libs/libvpx instead of bundled.","system-sqlite":"Use the system-wide dev-db/sqlite installation with secure-delete enabled"},"thunderbird-bin":{"crashreporter":"Enable crash reporter for bugs"},"trojita":{"password":"Store passwords securely via dev-libs/qtkeychain"}},"mail-filter":{"MailScanner":{"exim":"Set mail-mta to used MTA","postfix":"Set mail-mta/postfix to used MTA","spamassassin":"Enable usage of mail-filter/spamassassin for spam protection"},"amavisd-new":{"courier":"Add courier support","dkim":"Add DomainKeys Identified Mail support","qmail":"Add qmail support","razor":"Add support for mail-filter/razor","spamassassin":"Add support for mail-filter/spamassassin","zmq":"Add support for zeromq sockets"},"ask":{"procmail":"Adds support for mail-filter/procmail"},"assp":{"spf":"Adds support for Sender Policy Framework","srs":"Adds support for Sender Rewriting Scheme"},"bogofilter":{"tokyocabinet":"Enable Tokyo Cabinet database support"},"clamassassin":{"clamd":"Use the app-antivirus/clamav daemon for virus checking","subject-rewrite":"Adds support for subject rewriting"},"dcc":{"rrdtool":"Enable net-analyzer/rrdtool interface scripts"},"dspam":{"daemon":"Enable support for DSPAM to run in --daemon mode","debug":"Enable debugging support (don't enable this unless something needs testing!)","domain-scale":"Build for domain scale setups - puts data to $HOME/data/domain.com/user","hash":"Enable support for the file-orientated hash driver","large-scale":"Build for large scale setups - puts data to $HOME/data/u/s/user","small-scale":"Build for small scale setups - puts data to $HOME/data/user","user-homedirs":"Build with user homedir support","virtual-users":"Build with virtual-users support"},"libmilter":{"poll":"Use poll instead of select"},"maildrop":{"authlib":"Add courier-authlib support","tools":"Install maildirmake and deliverquota tools","trashquota":"Count deleted messages as part of the maildir quota"},"mimedefang":{"poll":"Use poll instead of select"},"opendkim":{"ldap":"Enable openldap as a dataset facilitator or keys, determining domains to sign for, and any other dataset that opendkim supports.","lmdb":"Add support for using dev-db/lmdb","lua":"Enables control over signature verification, filtering and policy to be controlled by user defined lua scripts.","memcached":"Add support for using dev-libs/libmemcached","opendbx":"Use opendbx backend to facilitate dataset driven OpenDKIM configuration options like stats, bodylengthdb, etc. against a wide variety of database types","poll":"Use poll() instead of select() for the provided asynchronous resolver library.","sasl":"Used to authenticate to a LDAP server in various ways if required.","unbound":"Use the unbound dnssec library to perform DKIM DNS queries."},"postfwd":{"tools":"Install additional tools for testing postfwd"},"postgrey":{"targrey":"Enables the targrey patch"},"qmail-scanner":{"spamassassin":"Build faster mail-filter/spamassassin checks into qmail-scanner"},"spamassassin":{"bayes":"Require a database (MySQL, SQLite, Postgres, or BerkDB) backend to enable the Bayesian filtering database.","qmail":"Build qmail functionality and docs"},"spamdyke":{"tls":"Enables TLS protocol for spamdyke"},"zdkimfilter":{"debug":"Log process and signal information. Also leave the child process running for gdb examination.","mysql":"MySQL client based statistics based storage.","opendbx":"An alternate statistics based storage engine."}},"mail-mta":{"courier":{"fax":"Enables fax support in the courier mail server","norewrite":"Prevents courier mail server from mangling virtual user addresses when sending","web":"Enable the web interface","webmail":"Enable the webmail interface"},"exim":{"dcc":"Adds support for Distributed Checksum Clearinghouse (DCC)","dkim":"Adds support for DomainKeys Identified Mail (DKIM)","dlfunc":"Install local_scan.h header to compile separate dlfunc libraries","dmarc":"Adds support for DMARC","dnsdb":"Adds support for a DNS search for a record whose domain name is the supplied query","dovecot-sasl":"Adds support for Dovecot's authentication","dsn":"Adds support for Delivery Status Notifications (DSN)","exiscan-acl":"Patch providing support for content scanning","lmtp":"Adds support for lmtp","mbx":"Adds support for UW's mbx format","pkcs11":"Require pkcs11 support in net-libs/gnutls with USE=gnutls","prdr":"Adds support for Per-Recipient Data Response","proxy":"Add support for being behind a proxy, such as HAProxy","redis":"Adds support for querying dev-db/redis","spf":"Adds support for Sender Policy Framework","srs":"Adds support for Sender Rewriting Scheme","tpda":"Adds support for Transport Post-Delivery Actions"},"msmtp":{"libsecret":"Enable libsecret support to store login credentials","mta":"Enable this to install as system-wide MTA"},"netqmail":{"authcram":"Enable AUTHCRAM support","gencertdaily":"Generate SSL certificates daily instead of hourly","highvolume":"Prepare netqmail for high volume servers"},"opensmtpd":{"mta":"Enable this to install as system-wide MTA"},"postfix":{"dovecot-sasl":"Enable net-mail/dovecot protocol version 1 (server only) SASL implementation","eai":"Add support for SMTPUTF8","ldap-bind":"Add support for binding to LDAP backend using dev-libs/cyrus-sasl","lmdb":"Add support for using dev-db/lmdb for lookup tables","memcached":"Add support for using net-misc/memcached for lookup tables","vda":"Add support for virtual delivery agent quota enforcing"},"qmail-ldap":{"cluster":"Enable this if you want to have cluster support in qmail-ldap","gencertdaily":"Generate SSL certificates daily instead of hourly","highvolume":"Prepare qmail for high volume servers","rfc2307":"Add support for RFC2307 compliant uid/gid attributes","rfc822":"Add support for RFC822 compliant mail attributes"},"qpsmtpd":{"postfix":"create user with permissions for proper postfix interaction"},"ssmtp":{"mta":"Install symlinks for sendmail-compatible MTA."}},"mate-base":{"caja":{"mate":"Install x11-themes/mate-icon-theme which is needed when this package is used in the MATE desktop environment.","unique":"Enable single instance support using dev-libs/libunique."},"mate":{"base":"Install base MATE Desktop applications that are recommended for the most common usage; for example, this installs the file manager. Disable this and other USE flags if you want a more minimal MATE Desktop.","extras":"Install additional MATE Desktop applications that are recommended for extended usage of the MATE Desktop as upstream sees it; for example, this installs MATE Desktop's office related applications. Disable this if you plan to use your own non-MATE Desktop alternatives or a custom mixture of MATE and non-MATE packages.","themes":"Install MATE Desktop's themes; if you use other themes, you can disable this to spare some space and time."}},"mate-extra":{"caja-extensions":{"gajim":"Add an extension to support net-im/gajim.","image-converter":"Add image conversion support.","mail":"Add an extension to support e-mail functionality.","open-terminal":"Add an extension to support an open terminal.","pidgin":"Add an extension to support net-im/pidgin","share":"Add an extension to support sharing files."},"mate-media":{"twolame":"Bring in twolame gstreamer support"},"mate-power-manager":{"applet":"Enable building of the MATE applet.","man":"Build power manager's man page.","unique":"Enable single instance support using dev-libs/libunique."},"mate-screensaver":{"consolekit":"Enable support for sys-auth/consolkekit"},"mate-utils":{"applet":"Enable the mate dictionary applet"}},"media-fonts":{"culmus":{"ancient":"Install ancient semitic scripts","fancy":"Install fancy fonts","fontforge":"Use media-gfx/fontforge to build fonts from source","taamey":"Install taamey fonts"},"culmus-ancient":{"fontforge":"Use media-gfx/fontforge to build fonts from source"},"dejavu":{"fontforge":"Use media-gfx/fontforge to build fonts from source"},"intlfonts":{"bdf":"Installs BDF fonts in addition to PCF"},"liberation-fonts":{"fontforge":"Use media-gfx/fontforge to build fonts from source"},"libertine":{"opentype":"Prefer installing OpenType over TrueType fonts"},"montecarlo":{"bdf":"Install BDF fonts in addition to PCF"},"mplus-outline-fonts":{"ipafont":"Generates new fonts merged with media-fonts/ja-ipafonts"},"sil-charis":{"compact":"Use more compactly spaced font"},"sil-gentium":{"compact":"Also install more compact version of the font."},"terminus-font":{"a-like-o":"Changes view of letter 'a' - a looks like o (see homepage)","center-tilde":"Place the '~' character vertically centered on the line instead of to the top.","distinct-l":"ll2 variant with more distinctive l (lowercase L)","pcf":"Install Portable Compiled Font (PCF) (required for X11)","pcf-unicode-only":"Remove non-unicode PCF fonts that could be problematic. See bug #520222.","psf":"Install PC Screen Font (PSF) with unicode data (for linux console)","quote":"Changes view of quotes: symmetric ` and ' instead of asymmetric one (see homepage)","raw-font-data":"Install RAW font data which should be compatible with most UNIX systems (you don't need this on linux)","ru-dv":"Changes view of Russian letters 'de' and 've' (see homepage)","ru-g":"Changes view of Russian letter 'ge' (see homepage)","ru-i":"Changes view of Russian letter 'i' - not like Latin u, but like \"mirrored\" N (see homepage)","ru-k":"Changes view of Russian letter 'k' (see homepage)"},"unifont":{"fontforge":"Use media-gfx/fontforge to build fonts from source","utils":"Install unifont utilities"}},"media-gfx":{"album":{"plugins":"Install optional plugins","themes":"Install optional themes"},"assimp":{"boost":"Build assimp with boost support","samples":"Build viewer library","tools":"Build assimp tool binary"},"asymptote":{"boehm-gc":"Enables using the Boehm-Demers-Weiser conservative garbage collector","offscreen":"Enables off-screen rendering","sigsegv":"Enables using dev-libs/libsigsegv"},"blender":{"boost":"Enable features depending on boost.","bullet":"Enable Bullet (Physics Engine).","collada":"Add support for Collada interchange format through media-libs/opencollada.","colorio":"Enable OpenColorIO color management.","cycles":"Build cycles renderer (requires media-libs/openimageio and dev-libs/boost).","dds":"Adds DDS textures support to Blender.","doc":"Build C and Python API documentation directly from the source code.","elbeem":"Adds surface fluid simulation to Blender using El'Beem library.","game-engine":"Adds Game Engine support to Blender.","ndof":"Enable NDOF input devices (SpaceNavigator and friends).","openimageio":"Enable OpenImageIO Support","opennl":"Enable use of Open Numerical Library","player":"Build the Blender Player. THis requires the Game engine.","redcode":"This flag add support for RED CODE camera digital format (5K HD images *.r3d) - EXPERIMENTAL."},"brlcad":{"benchmarks":"Run benchmarks during test phase (need test option enabled)"},"comix":{"rar":"Pulls app-arch/unrar for rar file support"},"darktable":{"colord":"Support color management using x11-misc/colord","flickr":"Add support for uploading photos to flickr","geo":"Enable geotagging support","graphicsmagick":"Use media-gfx/graphicsmagick for image importing","libsecret":"Enable libsecret support to store login credentials","opencl":"Enable opencl support","pax_kernel":"Triggers paxmarking of main darktable binary","rawspeed":"Enable the rawspeed backend","slideshow":"Build the opengl slideshow viewer","squish":"Enable thumbnail compression via libsquish","web-services":"Add support for uploading photos to facebook and picasa","webp":"Enable WebP export support"},"digikam":{"addressbook":"Add support for kdepim","linguas_ha":"Hausa translation","linguas_mi":"Maori translation","linguas_ven":"Venda translation","nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)","themedesigner":"Build the digikam theme designer","thumbnails":"Enable thumbnails database support","video":"Pull in mplayerthumbs to enable video thumbnails"},"enblend":{"gpu":"GPU support for Enblend","image-cache":"allow for processing of large images"},"eog-plugins":{"flickr":"Enable uploading to Flickr","map":"Enable world map display using media-libs/libchamplain","picasa":"Enable uploading to Google's Picasa Web Albums"},"exact-image":{"swig":"Adds Swig support dev-lang/swig"},"exiv2":{"contrib":"Build additional contrib components"},"fbida":{"X":"Install the Motif based image viewer \"ida\"","fbcon":"Install the framebuffer image viewer \"fbi\"","webp":"Enable support for the WebP image format"},"fim":{"dia":"Enable DIA file support via app-office/dia","graphicsmagick":"Enable GraphicsMagick library support","imagemagick":"Use convert from media-gfx/imagemagick as fallback file opener","xfig":"Enable FIG file support via media-gfx/xfig"},"fontforge":{"cjk":"Controls whether fontforge understands the gb12345 encoding and installs cidmap package to edit CID-keyed fonts","pango":"Enable pango font rendering","pasteafter":"Controls whether fontforge has a paste after command (Useful for making words?). This is kind of fun, but it isn't useful for normal fonts.","tilepath":"Controls whether fontforge has a tile path command (a variant of expand stroke) This is useful for very decorative fonts, most people won't want it.","truetype-debugger":"Enable truetype debugger in fontforge","type3":"Build in support for type3/svg fonts containing multilayered drawing with strokes, fills, images, etc. Type3 fonts are only supported by postscript printers (not by most windowing displays). They are capable of more exotic images than normal fonts but require much more effort to support."},"fotowall":{"webcam":"Enable webcam support"},"freewrl":{"glew":"Enable glew extensions","java":"Build and install java EAI/SAI support library","libeai":"Build EAI C library","opencl":"Enable OpenCL support","osc":"Allows for OSC-based control and communication between multiple freewrl instances"},"gimp":{"smp":"Enable support for multiprocessors"},"gmic":{"graphicsmagick":"Enable support for many common image file formats using the GraphicsMagick++ library","opencv":"Enable support for webcams using the OpenCV library"},"graphicsmagick":{"fpx":"Enable FlashPix support with media-libs/libfpx","modules":"Compile graphicsmagick with dynamically loadable modules","q16":"Set storage quantum size to 16 (~2*memory)","q32":"Set storage quantum size to 32 (~5*memory)","webp":"Enable support for webp image format"},"graphviz":{"X":"Builds lefty front-end, builds plugin -Txlib, and enables support for x11 in various other modules (needs cairo)","devil":"Enables DevIL output plugin -Tdevil","gdk-pixbuf":"Enables gdk-pixbuf2 plugin","gtk":"Enables gtk+ output plugin -Tgtk (needs cairo)","gts":"Enables support for gts","lasi":"Enables PostScript output via media-libs/lasi, for plugin -Tlasi (needs cairo)","qt4":"Builds gvedit front-end"},"gthumb":{"http":"Enable webservice integration through net-libs/libsoup","json":"Compile code that uses the libjson-glib library","libsecret":"Enable libsecret support to store login credentials","slideshow":"Enable slideshow plugin","webp":"Enable support for webp image format"},"hugin":{"sift":"automatically align images with media-gfx/autopano-sift or media-gfx/autopano-sift-C"},"imagemagick":{"autotrace":"Use media-gfx/autotrace to convert bitmaps into vector graphics","corefonts":"Use media-fonts/corefonts which is required by some commands","fpx":"Enable media-libs/libfpx support","hdri":"enable High Dynamic Range Images formats","lqr":"Enable experimental liquid rescale support using media-libs/liblqr","opencl":"Enable OpenCL support","pango":"Enable Pango support using x11-libs/pango","q32":"Set quantum depth value to 32","q64":"Set quantum depth value to 64","q8":"Set quantum depth value to 8","webp":"Enable webp image format support using media-libs/libwebp"},"imageworsener":{"webp":"enable webp image format support"},"inkscape":{"cdr":"Enable support for CorelDRAW Diagrams","dia":"pull in app-office/dia for dia import extension","inkjar":"Enable support for OpenOffice.org SVG jar files","visio":"Enable support for Microsoft Visio Diagrams","wpg":"Enable support for WordPerfect Graphics"},"iscan-plugin-gt-f500":{"minimal":"Install the firmware only, and not the plugin."},"jpeg2ps":{"metric":"Default to A4 paper size"},"k3d":{"3ds":"Enable support for 3D Studio models","cuda":"Use nvidia cuda toolkit for speeding up computations","gts":"Add Support for the GNU Triangulated Surface Library sci-libs/gts"},"kphotoalbum":{"geolocation":"Add support for kde-base/marble","kipi":"Support for the KDE Image Plugin Interface"},"librecad":{"tools":"Build additional tool programs"},"nip2":{"goffice":"use x11-libs/goffice to show plots"},"nomacs":{"opencv":"Build support for media-libs/opencv","webp":"Build support for WEBP image format","zip":"Build support for zip archives"},"nvidia-texture-tools":{"cg":"Enable NVIDIA C graphics compiler toolkit plug-in","cuda":"Enable NVIDIA CUDA toolkit support","glew":"Enable support for The OpenGL Extension Wrangler Library (media-libs/glew)"},"openclipart":{"gzip":"Compresses clip art using gzip"},"openexr_viewers":{"cg":"Add support for nvidia's cg shaders"},"photoqt":{"exiv2":"Use media-gfx/exiv2 as optional dependency","graphicsmagick":"Use media-gfx/graphicsmagick as optional dependency"},"pngcrush":{"system-libs":"Use libpng and libz provided by system"},"potrace":{"metric":"default to a4 paper size and metric measurement"},"povray":{"io-restrictions":"POV-Ray's mechanism for control of I/O operations","mkl":"Enable support for Intel Vector Math Library, part of sci-libs/mkl"},"pstoedit":{"emf":"Enable media-libs/libemf support","flash":"Enable media-libs/ming SWF support","pptx":"Enable support for generating PowerPoint pptx files"},"qiv":{"magic":"Use libmagic to determine mimetypes"},"qiviewer":{"webp":"Build support for WEBP image format"},"splashutils":{"fbcondecor":"Support for the fbcondecor kernel patch."},"ufraw":{"contrast":"enable contrast setting option","fits":"Enable support for the FITS image format through sci-libs/cfitsio","timezone":"enable DST correction for file timestamps"},"xpaint":{"pgf":"Support for loading PGF images"},"xsane":{"ocr":"Enable support for Optical Character Recognition reader"},"yafaray":{"blender":"install media-gfx/blender scripts"}},"media-libs":{"a52dec":{"djbfft":"Prefer D.J. Bernstein's library for fourier transforms"},"allegro":{"dumb":"Enable media-libs/dumb module library support","physfs":"Enable physfs support","vga":"Enables the VGA graphics driver"},"alsa-lib":{"alisp":"Enable support for ALISP (ALSA LISP) interpreter for advanced features."},"alure":{"dumb":"Enable media-libs/dumb module library support","fluidsynth":"Enables Fluidsynth MIDI software synthesis"},"aubio":{"double-precision":"Compile in double precision mode."},"avidemux-core":{"aften":"Enable A/52 (AC-3) audio encoder support.","amr":"Enable Adaptive Multi-Rate format support via media-libs/opencore-amr.","system-ffmpeg":"Use the ffmpeg provided by the system."},"avidemux-plugins":{"aften":"Enable A/52 (AC-3) audio encoder support.","amr":"Enable Adaptive Multi-Rate format support via media-libs/opencore-amr.","faac":"Enable free MPEG-4 audio codecs support via media-libs/faac.","faad":"Enable AAC audio decoding library support via media-libs/faad2.","fribidi":"Enable unicode bidirectional algorithm support via dev-libs/fribidi.","twolame":"Enable TwoLAME support via media-sound/twolame, an optimised MPEG Audio Layer 2 (MP2) encoder.","vpx":"Enable WebM VP8 Codec SDK support via media-libs/libvpx."},"babl":{"introspection":"Use dev-libs/gobject-introspection for introspection","vala":"Enable bindings for dev-lang/vala"},"cal3d":{"16bit-indices":"Enables use of 16bit indices"},"chromaprint":{"tools":"Build and install fpcalc and fpcollect tools"},"clutter":{"egl":"Enable EGL backend.","gtk":"Use gdk-pixbuf from x11-libs/gtk+ as image rendering backend"},"cogl":{"gles2":"Enable OpenGL ES 2.0 support","kms":"Enable KMS support.","pango":"Build cogl-pango library for x11-libs/pango integration"},"coin":{"simage":"Texture loading via media-libs/simage library"},"devil":{"allegro":"Add support for Allegro","nvtt":"Add support for dev-util/nvidia-texture-tools"},"edje":{"cache":"Enable caching"},"elementary":{"quicklaunch":"Enable quick-launch support"},"emotion":{"vlc":"Enable support for the media-video/vlc player backend"},"esdl":{"image":"Enable image support"},"ethumb":{"emotion":"Add support for media-libs/emotion"},"evas":{"bmp":"Support windows bitmap (bmp) image loader","eet":"Support dev-libs/eet","gles":"Enable gles flavor of gl instead of standard","ico":"Support windows icon (ico) image loader","ppm":"Support PPM image loader","psd":"Support PSD image loader","tga":"Support tga image loader","wayland":"Add support for dev-libs/wayland"},"faad2":{"digitalradio":"Digital Radio Mondiale (warning: disables other decoders)"},"flickcurl":{"raptor":"Use media-libs/raptor for proper RDF serializing"},"fontconfig-infinality":{"nyx":"Additional style using croscorefonts"},"freeglut":{"mpx":"Enable support for multi-pointer-X. One pointer for each pointer device."},"freetype":{"adobe-cff":"Use Adobe CFF as default font-renderer","auto-hinter":"Use the unpatented auto-hinter instead of the (recommended) TrueType bytecode interpreter","bzip2":"Support bzip2 compressed PCF fonts.","fontforge":"Install internal headers required for TrueType debugger in media-gfx/fontforge (built with USE=truetype-debugger)","harfbuzz":"Use media-libs/harfbuzz for auto-hinting OpenType fonts. WARNING: may trigger circular dependencies!","infinality":"Enable infinality options for improved LCD filtering","utils":"Install utilities and examples from ft2demos"},"freeverb3":{"audacious":"Build Audacious plugin","forcefpu":"Disable assembly code","plugdouble":"Build plugins in double precision mode (default is float)"},"gd":{"webp":"Enable support for the webp format"},"gegl":{"introspection":"Use dev-libs/gobject-introspection for introspection.","lensfun":"Enable support for media-libs/lensfun.","umfpack":"Enable sparse solving via sci-libs/umfpack.","vala":"Enable bindings for dev-lang/vala"},"giflib":{"rle":"Build converters for RLE format (utah raster toolkit)"},"glfw":{"egl":"Use EGL instead of GLX for GL context creation"},"gmtk":{"dconf":"Enable support for gnome-base/dconf"},"grilo":{"network":"Enable network access for media discovery using net-libs/libsoup","playlist":"Enable support for playlists through dev-libs/totem-pl-parser","vala":"Generate bindings for dev-lang/vala"},"gst-plugins-bad":{"egl":"Enable EGL support","gles2":"Enable GLES2 support"},"gst-plugins-base":{"ivorbis":"Enable integer based vorbis decoder.","pango":"Enable pango GStreamer plugin"},"gstreamer":{"orc":"Disable some PaX memory protections to allow plugins that use dev-lang/orc for runtime optimization to be used on hardened PaX systems"},"harfbuzz":{"glib":"Compile with GLib Unicode support","graphite":"Use graphite to render complex non-Roman writing systems"},"jbig2enc":{"webp":"Add support for WEBP image format"},"leptonica":{"utils":"Install command-line utilities","webp":"Adds support for the WebP image format"},"libass":{"enca":"Enables support for charset discovery and conversion.","harfbuzz":"Enables OpenType shaping via media-libs/harfbuzz."},"libbdplus":{"aacs":"Add support for decryption of AACS"},"libbluray":{"aacs":"Add support for decryption of AACS","bdplus":"Use media-libs/libbdplus for BD+ decryption","java":"Add support for BD-J","utils":"Install command-line utilities and examples"},"libcanberra":{"alsa":"Enables ALSA sound driver.","gstreamer":"Enables gstreamer sound driver. Not useful when alsa or pulseaudio is available.","gtk":"Enables building of gtk+ helper library, gtk+ runtime sound effects and the canberra-gtk-play utility. To enable the gtk+ sound effects add canberra-gtk-module to the colon separated list of modules in the GTK_MODULES environment variable.","gtk3":"Enables building of gtk+3 helper library, gtk+3 runtime sound effects and the canberra-gtk-play utility. To enable the gtk+3 sound effects add canberra-gtk-module to the colon separated list of modules in the GTK_MODULES environment variable.","pulseaudio":"Enables PulseAudio sound driver that should be able to support positional event sounds. This is the preferred choice for best sound events experience and picked by default if compiled in and possible to use at runtime.","sound":"Install x11-themes/sound-theme-freedesktop to get sounds on Gnome and Xfce.","tdb":"Enables Trivial Database support for caching purposes."},"libde265":{"tools":"Install addtional tools, require USE=qt4 or qt5"},"libextractor":{"archive":"Enable archive support using app-arch/libarchive","gsf":"Enable OLE2 (MS Office) plug-in support using gnome-base/libgsf","magic":"Enable magic support using sys-apps/file","midi":"Enable MIDI support through media-libs/libsmf"},"libggi":{"vis":"Enables sparc vis support for libggi"},"libgnome-media-profiles":{"twolame":"Allow encoding MPEG Audio Layer 2 (MP2) files using twolame"},"libgphoto2":{"serial":"Enable serial port support"},"libgpod":{"gtk":"Enable ArtworkDB support"},"liblastfm":{"fingerprint":"Build the lastfm-fingerprint library"},"libmp4v2":{"utils":"Install command-line utilities"},"libomxil-bellagio":{"audioeffects":"enable audio volume/mixer effects components","clocksrc":"enable clock component","videoscheduler":"enable xvideosink video scheduler"},"libpagemaker":{"tools":"Build build tools"},"libpng":{"apng":"support unofficial APNG (Animated PNG) spec"},"libpostproc":{"pic":"Force shared libraries to be built as PIC (this is slower)."},"libquicktime":{"schroedinger":"Enable Dirac video support (an advanced royalty-free video compression format) via libschroedinger (high-speed implementation in C of the Dirac codec)"},"libraw":{"demosaic":"Enable support for external interpolation algorithms"},"libsdl":{"joystick":"Control joystick support (disable at your own risk)","ps3":"Build the PS3 video driver","sound":"Control audio support (disable at your own risk)","tslib":"Build with tslib support for touchscreen devices","video":"Control video support (disable at your own risk)"},"libsdl2":{"fusionsound":"use FusionSound audio driver","gles":"include OpenGL ES support","haptic":"Enable the haptic (force feedback) subsystem","joystick":"Control joystick support (disable at your own risk)","sound":"Control audio support (disable at your own risk)","tslib":"Build with tslib support for touchscreen devices","video":"Control video support (disable at your own risk)"},"libvpx":{"postproc":"Enable additional post processing filters"},"libwebp":{"experimental":"Build with -DWEBP_EXPERIMENTAL_FEATURES","swap-16bit-csp":"Enable byte swapping for 16 bit colorspace"},"lilv":{"dyn-manifest":"Add LV2 Dynamic Manifest support. See http://lv2plug.in/ns/ext/dynmanifest/"},"lv2":{"plugins":"Enables examples plugins."},"mash":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"mediastreamer":{"amr":"Use of AMR Narrow Band codec plugin","filters":"Enable compilation of filters","g726":"Support g726 codec","g729":"Use g726 codec plugin","ilbc":"Use of iLBC (RFC3951) codec plugin","ntp-timestamp":"Turn on NTP timestamping on received packet","opus":"Enable opus codec support","ortp":"Enable usage of net-libs/ortp","pcap":"Enable usage of net-libs/libpcap","silk":"Use silk (skype protocol) codec plugin","video":"Enable video support"},"memphis":{"introspection":"Use dev-libs/gobject-introspection for introspection","vala":"Add support for Vala"},"mesa":{"bindist":"Disable patent-encumbered ARB_texture_float, EXT_texture_shared_exponent, and EXT_packed_float extensions.","classic":"Build drivers based on the classic architecture.","d3d9":"Enable Direct 3D9 API through Nine state tracker. Can be used together with patched wine.","dri3":"Enable DRI3 support.","egl":"Enable EGL support.","gallium":"Build drivers based on Gallium3D, the new architecture for 3D graphics drivers.","gbm":"Enable the Graphics Buffer Manager for EGL on KMS.","gles":"Enable GLES (both v1 and v2) support.","gles1":"Enable GLESv1 support.","gles2":"Enable GLESv2 support.","llvm":"Enable LLVM backend for Gallium3D.","opencl":"Enable the Clover Gallium OpenCL state tracker.","openmax":"Enable OpenMAX video decode/encode acceleration for Gallium3D.","openvg":"Enable the OpenVG 2D acceleration API for Gallium3D.","osmesa":"Build the Mesa library for off-screen rendering.","pax_kernel":"Enable if the user plans to run the package under a pax enabled hardened kernel","pic":"disable optimized assembly code that is not PIC friendly","r600-llvm-compiler":"Build the LLVM based r600 shader compiler.","vdpau":"Enable the VDPAU acceleration interface for the Gallium3D Video Layer.","wayland":"Enable support for dev-libs/wayland","xa":"Enable the XA (X Acceleration) API for Gallium3D.","xvmc":"Enable the XvMC acceleration interface for the Gallium3D Video Layer."},"mlt":{"compressed-lumas":"Compress the luma files in png.","frei0r":"Build the module for media-plugins/frei0r-plugins","kdenlive":"Build support for media-video/kdenlive","lua":"Build SWIG bindings for Lua","melt":"Build the melt commandline tool","python":"Build SWIG bindings for Python","rtaudio":"Builds rtaudio consumer for native audio support on multiple platforms.","ruby":"Build SWIG bindings for Ruby"},"netpbm":{"rle":"Build converters for the RLE format (utah raster toolkit)"},"openal":{"alstream":"Build and install the FFmpeg based alstream example utility"},"opencolorio":{"pdf":"Install extra documentation in PDF format"},"opencv":{"cuda":"Enable NVIDIA Cuda computations support","eigen":"Enable usage of dev-cpp/eigen for computations","ipp":"Enable Intel Integrated Primitive support","opencl":"Add support for OpenCL","testprograms":"Build and install programs for testing OpenCV (performance)","vtk":"Build new 3D visualization module viz based on sci-libs/vtk"},"openh264":{"plugin":"Install the Gecko Media Plugin (GMP) for use with Mozilla packages"},"openimageio":{"colorio":"Use media-gfx/opencolorio","opencv":"Use media-libs/opencv","tbb":"Use dev-cpp/tbb"},"opus":{"custom-modes":"Build with custom-modes."},"opusfile":{"fixed-point":"Enable fixed-point arithmetic operations","float":"Enable floating point arithmetic operations","http":"Enable http connections"},"phonon":{"designer":"Install plugin for dev-qt/designer","vlc":"Install VLC Phonon backend","zeitgeist":"Add support for Zeitgeist event tracking system"},"phonon-gstreamer":{"network":"Enable network streaming support via libsoup"},"portmidi":{"test-programs":"Install various example programs"},"quvi":{"json":"Enable support for JSON output"},"raptor":{"json":"Enable support for JSON parsing"},"sdif":{"ftruncate":"Enables usage of ftruncate v. truncate"},"sdl-image":{"webp":"support loading WEBP images"},"sdl-mixer":{"fluidsynth":"Use media-sound/fluidsynth for MIDI support","midi":"basic support for MIDI files","mod":"basic support for MOD files","playtools":"Install playwave and playmus tools (useful for testing)","smpeg":"Use media-libs/smpeg for MP3 support","wav":"support WAVE files"},"sdl-sound":{"physfs":"Enable physfs support"},"sdl2-image":{"webp":"support loading WEBP images"},"sdl2-mixer":{"fluidsynth":"Use media-sound/fluidsynth for MIDI support","midi":"basic support for MIDI files","mod":"basic support for MOD files","playtools":"Install playwave and playmus tools (useful for testing)","smpeg":"Use media-libs/smpeg for MP3 support","tremor":"enable OGG Vorbis music via libtremor","wav":"support WAVE files"},"sge":{"image":"enable sdl-image support"},"silgraphite":{"pango":"Enables the pango-graphite pango module."},"spandsp":{"fixed-point":"Enable fixed point support"},"svgalib":{"kernel-helper":"Build the helper kernel module"},"taglib":{"asf":"Provide support for Microsoft's 'advanced systems format' media container."},"tremor":{"low-accuracy":"enable 32bit only multiply operations"},"vips":{"fits":"Enable support for the FITS image format through sci-libs/cfitsio"},"waffle":{"egl":"Enable EGL support","gbm":"Enable support for the Generic Buffer Manager (gbm)","wayland":"Enable Wayland support"},"x264":{"10bit":"Set output bit depth to 10, this may not be compatible with all decoders","interlaced":"enable interlaced encoding support, this can decrease encoding speed by up to 2%","opencl":"Add support for OpenCL.","pic":"disable optimized assembly code that is not PIC friendly"},"x265":{"10bit":"Set output bit depth to 10"},"xine-lib":{"bluray":"Enable playback of Blu-ray filesystems using media-libs/libbluray","dxr3":"Enable support for DXR3 mpeg acceleration cards.","flac":"Build the media-libs/flac based FLAC demuxer and decoder. This flag is not needed for playing FLAC content, neither standalone nor in Ogg container (OggFLAC), but might have better support for exotic features like 24-bit samples or 96kHz sample rates.","fusion":"Enable support for the Fusion audio sub system","gtk":"Build the gdkpixbuf-based image decoder plugin.","imagemagick":"Build the ImageMagick-based image decoder plugin.","mad":"Build the media-libs/libmad based mp3 decoder. This mp3 decoder has superior support compared to the one coming from FFmpeg that is used as a fallback. If you experience any bad behaviour with mp3 files (skipping, distorted sound) make sure you enabled this USE flag.","mmap":"Use mmap() function while reading file from local disks. Using mmap() will use more virtual memory space, but leaves to the Kernel the task of caching the file's data. mmap() access should be faster, but might misbehave if the device where the file resides in is removed during playback.","truetype":"Use media-libs/freetype for font rendering and media-libs/fontconfig for font discovery. Enabling this USE flag will allow OSD (such as subtitles) to use more advanced font and to more easily select which font to use. The support for TrueType fonts in xine-lib is still experimental, and might not be as good looking as the bitmap fonts used with this USE flag disabled.","vdr":"Build the VDR plugin","vidix":"Enable support for vidix video output.","vis":"Adds support for SIMD optimizations for UltraSPARC processors.","vpx":"Enable VP8 codec support via media-libs/libvpx.","xvmc":"Enable support for XVideo Motion Compensation (accelerated mpeg playback)."},"xvid":{"pic":"disable optimized assembly code that is not PIC friendly"}},"media-plugins":{"audacious-plugins":{"adplug":"Build with AdPlug (Adlib sound card emulation) support","bs2b":"Enable Bauer Bauer stereophonic-to-binaural headphone filter","cue":"Support CUE sheets using the libcue library","fluidsynth":"Support FluidSynth as MIDI synth backend","gtk3":"Link against version 3 of the GIMP Toolkit instead of version 2 (x11-libs/gtk+)","midi":"Build with amidi-plug (MIDI synth) support","scrobbler":"Build with scrobbler/LastFM submission support","sid":"Build with SID (Commodore 64 Audio) support"},"banshee-community-extensions":{"lastfmfingerprint":"Enable support to ientify your music automatically, using the Last.fm online service.","lirc":"Enable the remote control plugin (uses app-misc/lirc)","lyrics":"Enable support for automatically fetching lyrics","mirage":"Enable the Mirage plugin which automatically, and intelligently generates playlists for you","telepathy":"Enables the Telepathy plugin which lets you to share and stream music with IM buddies","zeitgeist":"Build the plugin to inject events to gnome-extra/zeitgeist"},"frei0r-plugins":{"facedetect":"Enables building of facedetect plugin, which depends on media-libs/opencv","scale0tilt":"Enables building of scale0tilt and vectorscope plugins, which depend on media-libs/gavl"},"gkrellmpc":{"threads":"Use separate thread to init connection (unsafe)"},"grilo-plugins":{"daap":"Enable dmap support through net-libs/libdmapsharing","flickr":"Enable Flickr support","freebox":"Build support for viewing TV channels using Freebox","gnome-online-accounts":"Enable net-libs/gnome-online-accounts support","pocket":"Support for showing content from Pocket","thetvdb":"Build support for thetvdb.com","tracker":"Build support for content discovery using the app-misc/tracker indexer","vimeo":"Build support for Vimeo content discovery using net-libs/libsoup and dev-libs/libgcrypt","youtube":"Build support for YouTube content discovery using dev-libs/libgdata"},"gst-plugins-gl":{"libvisual":"Enable visualization effects via media-libs/libvisual"},"gst-plugins-meta":{"http":"Enable http streaming via net-libs/libsoup","libvisual":"Enable visualization effects via media-libs/libvisual","opus":"Enable Opus audio codec support","vpx":"Enables vp8 codec support using libvpx, required to play some HTML5 videos"},"kipi-plugins":{"expoblending":"Build the expoblending plugin, which requires media-gfx/hugin","gpssync":"Build the gpssync plugin, which requires media-lib/libkgeomap and thereby marble","linguas_ha":"Hausa translation","linguas_mi":"Maori translation","linguas_tt":"?? translation","linguas_ven":"Venda translation","mediawiki":"Build the mediawiki export plugin","panorama":"Pull in dependencies needed by panorama plugin","redeyes":"Add redeyes removal support","videoslideshow":"Build videoslideshow plugin","vkontakte":"Build plugin for vkontakte.ru"},"mediastreamer-ilbc":{"20ms-frames":"enable 20ms frame size (default is 30ms). Some VOIP providers such as Gizmo5 (aka Sipphone) require the codec to be compiled with the 30ms setting."},"mythplugins":{"cdr":"Allows MythMusic to burn CD-Rs","exif":"Allows MythGallery to read EXIF data from photos","fftw":"Adds visual effects to MythMusic when playing back music","hls":"HTTP Live Streaming support","mytharchive":"Allows you to archive recorded content to CD or DVD","mythbrowser":"Adds a web browser within MythTV","mythgallery":"Adds a picture viewing gallery within MythTV","mythgame":"Adds a frontend to various ROM emulators within MythTV","mythmusic":"Adds the ability for MythTV to act as a music player","mythnetvision":"Adds the ability to view netvision devices within MythTV","mythnews":"Adds a news viewer within MythTV","mythweather":"Adds weather information within MythTV","mythzoneminder":"Adds support for zoneminder (requires a server with the appropriate mythtv daemon somewhere on the network).","raw":"Allows MythGallery to view photos saved in RAW format"},"vdr-burn":{"dvdarchive":"DMH DVD - Archive"},"vdr-epgsearch":{"conflictcheckonly":"ToDo","epgsearchonly":"ToDo","quicksearch":"ToDo","tre":"Add support for unlimited fuzzy searching with help of dev-libs/tre library"},"vdr-graphtft":{"graphtft-fe":"Install external x11 remote frontend","theme_avp":"graphTFT Alien vs. Predato theme","theme_deepblue":"graphTFT default theme","theme_deeppurple":"graphTFT Deep Purple theme","theme_poetter":"graphTFT Poetter theme","touchscreen":"Enable Touchscreen support"},"vdr-music":{"graphtft":"Enable support for media-plugins/vdr-graphtft"},"vdr-pvr350":{"yaepg":"Enables full support for the output format of media-plugins/vdr-yaepg"},"vdr-streamdev":{"client":"Compile the VDR plugin vdr-streamdev-client that acts like a dvb-budget card","server":"Compile the VDR plugin vdr-streamdev-server that allows remote systems to access the DVB cards used for the local VDR"},"vdr-text2skin":{"contrib":"Install user contributed scripts"},"vdr-vdrmanager":{"stream":"Add support for streaming Video to Android client"},"vdr-weatherng":{"dxr3":"enables lower osd color depth for dxr3 cards"},"vdr-xine":{"yaepg":"Enables support for the plugin vdr-yaepg (showing scaled video besides OSD)"},"vdr-xineliboutput":{"bluray":"Enable BluRay metadata support through media-libs/libbluray","cec":"Enable CEC support through dev-libs/libcec","libextractor":"Use media-libs/libextract to gather files' metadata in media-player","vdr":"Compile the vdr output plugin to use local or remote xine as output","xine":"Compile the xine input plugin for displaying vdr video and OSD"}},"media-radio":{"ax25-tools":{"X":"Enable some X based configuration tools."},"fldigi":{"hamlib":"Enables support by the Hamlib amateur radio rig control library to get/set frequency and mode of the ham radio in use"},"tucnak2":{"ftdi":"Enable support for FTDI USB chips","hamlib":"Enables support by the Hamlib amateur radio rig control library to get/set frequency and mode of the ham radio"},"unixcw":{"ncurses":"Enables building the curses based morse code tutor program 'cwcp'."},"xastir":{"festival":"Enable text to speech synthesizer","gdal":"Support for some further map formats","geotiff":"Install geotiff support. Allows using USGS DRG topo maps or other types of geotiff mapes/images","graphicsmagick":"Use graphicsmagick instead imagemagick for rendering"}},"media-sound":{"abcde":{"id3tag":"Support ID3, ID3v2 tagging of audio files","normalize":"Add support for normalizing audio file volume levels","opus":"Support opus encoding using opusenc","replaygain":"Support for Replay Gain metadata, for relative volume adjustment"},"abcm2ps":{"pango":"Use the pango library to render fonts with non-latin characters"},"alsa-utils":{"libsamplerate":"install utils that use libsamplerate (e.g. alsaloop)","ncurses":"install utils that use ncurses (e.g. alsamixer)"},"alsaplayer":{"id3tag":"Enables ID3 tagging with id3tag library"},"amarok":{"embedded":"Use libmysqld, MySQL embedded server library. Try disabling this if you encounter -PIC related in amarok, it will make amarok rely only on standalone MySQL server.","lastfm":"Enable Last.fm streaming services support through media-libs/liblastfm","mp3tunes":"Enable mp3tunes integration","mtp":"Enable support for libMTP (Plays4Sure) devices access through libmtp","nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)","ofa":"Use media-libs/libofa to compute MusicDNS acoustic fingerprints (used by MusicBrainz)","utils":"Build the utils - old media-sound/amarok-utils"},"amsynth":{"dssi":"Enable support for DSSI Soft Synth Interface"},"aqualung":{"ifp":"Enable support for iRiver iFP portable audio players","lua":"Enable support for programmable title formatting with dev-lang/lua","mac":"Enable support for decoding Monkey's Audio files","podcast":"Enable podcast support","systray":"Enable system tray support"},"ardour":{"lv2":"Add support for Ladspa V2"},"ario":{"audioscrobbler":"Enable song tracking via last.fm","idle":"Enable experimental support for MPD's idle command to reduce bandwidth and cpu usage, requires MPD 0.14"},"asunder":{"mac":"Support for creation of Monkey's Audio files (APE)","opus":"Support for creation of Opus files"},"audacious":{"chardet":"Try to handle non-UTF8 chinese/japanese/korean ID3 tags","gtk3":"Link against version 3 of the GIMP Toolkit instead of version 2 (x11-libs/gtk+)"},"audacity":{"id3tag":"Enables ID3 tagging with id3tag library","libsoxr":"Uses media-libs/soxr as audio resampling library: Better quality than the included resampler and much faster than libsamplerate while keeping almost the same quality.","midi":"Enables MIDI support","sbsms":"Enables sbsms library support for pitch and tempo changing","soundtouch":"Enables soundtouch library support for pitch and tempo changing","twolame":"Enables twolame support (MPEG Audio Layer 2 encoder)","vamp":"Enables vamp plugins support (Audio analysing plugins)"},"banshee":{"bpm":"Build beats per minute detection extension","cdda":"Build with audio CD support","daap":"Build with Daap support","karma":"Build with karma support","web":"Enable support for plugins that access web-based services such as Amazon and wikipedia (requires net-libs/webkit-gtk)","youtube":"Enable the Youtube plugin"},"beets":{"beatport":"Enable support for beatport.com API","bpd":"Enable support for media-sound/mpd server emulation","chroma":"Enable support for acoustic fingerprinting plugin using (media-libs/chromaprint)","convert":"Enable support for the convert plugin which makes it possible to transcode files","discogs":"Enable support for the discogs API plugin","echonest":"Enable support for fetching and storing acoustic attributes of a track from Echo Nest","echonest_tempo":"Enable support for writing the BPM of a track into its metadata","lastgenre":"Enable support for importing music genres from last.fm tags","mpdstats":"Enable support for collecting statistic about listening habits from media-sound/mpd","replaygain":"Enable support for Replay Gain metadata calculation during import","web":"Enable embedded webserver support through dev-python/flask"},"cantata":{"dynamic":"Enable support for dynamic playlists","http-server":"Enable internal HTTP server to play non-MPD files","online-services":"Enable support for online services (Jamendo, Magnatune, SoundCloud, and Podcasts)","replaygain":"Enable ReplayGain support, for relative volume adjustments","streams":"Enable support for streams tab (to save favourite streams, and search for others)"},"clementine":{"box":"Enable Box support","dropbox":"Enable Dropbox support","googledrive":"Enable Google Drive support","lastfm":"Use liblastfm for fetching song info, scrobbling and radio streams","moodbar":"Enable moodbar support","projectm":"Build with ProjectM visualization","skydrive":"Enable Skydrive support","system-sqlite":"Use the system-wide dev-db/sqlite installation","ubuntu-one":"Enable Ubuntu One support","wiimote":"Enable support for Wii remote"},"cmus":{"cdio":"use libcdio for CD support","cue":"enable CUE sheet parsing","discid":"enable reading the ID of the inserted CD","opus":"enable support for media-libs/opusfile","pidgin":"install support script for net-im/pidgin","tremor":"use libivorbis from media-libs/tremor instead of media-libs/libvorbis","wma":"add support for Windows Media Audio"},"csound":{"beats":"Build the beats score frontend","chua":"Build the chua opcodes","csoundac":"Build the CsoundAC extension module","double-precision":"Use double-precision floating point for audio samples","dssi":"Build the DSSI opcodes","fluidsynth":"Build the fluidsynth opcodes","image":"Build the image opcodes","keyboard":"Build Virtual MIDI keyboard","linear":"Build the linear algebra Opcodes","luajit":"Use the lua just-in-time compiler dev-lang/luajit instead of dev-lang/lua","portmidi":"Build the PortMIDI I/O module","samples":"Install the HRTF datafiles for use with hrtfmove, hrtfmove2, hrtfstat, hrtfearly, and hrtfreverb","score":"Build the alternative score parser","stk":"Build the stk opcodes","tcl":"Build the tcl interface and clients","utils":"Build stand-alone executables for utilities that can also be used via `csound -U`"},"darkice":{"aacplus":"AAC+ encoding via media-libs/libaacplus","opus":"Enable Opus audio codec support","twolame":"Build with twolame support"},"denemo":{"fluidsynth":"Enable Fluidsynth MIDI software synthesis","portmidi":"Enable support for the portmidi backend"},"dir2ogg":{"mac":"Add support for decoding Monkey's Audio files","wma":"Add support for wma files through mplayer"},"easytag":{"gtk2":"Enable GTK+:2 support and disable default GTK+:3 support","gtk3":"Enable GTK+:3 support (default) and disable GTK+:2 support","opus":"Enable support for media-libs/opus and media-libs/opusfile (opus audio codec)"},"ecasound":{"lv2":"Add support for Ladspa V2","oil":"Use dev-libs/liboil for inner loop optimizations"},"fapg":{"xspf":"Enable support for saving XSPF playlists."},"flacon":{"mac":"Add support for Monkey's Audio files","replaygain":"Support for Replay Gain metadata, for relative volume adjustment","tta":"Add support for True Audio encoding"},"freewheeling":{"fluidsynth":"compile with support for fluidsynth"},"frescobaldi":{"portmidi":"Enable media-libs/portmidi support"},"gejengel":{"audioscrobbler":"Enable track submission on last.fm"},"gimmix":{"cover":"Enable cover art fetching","lyrics":"Enable lyric fetching"},"gmpc":{"unique":"Enable single instance support using dev-libs/libunique","xspf":"Enable support for reading and saving XSPF playlists"},"google-musicmanager":{"log":"Enables advanced logging through dev-libs/log4cxx"},"gpodder":{"webkit":"Enable the webkit rendering engine for HTML episode shownotes"},"herrie":{"http":"Enable http streaming","xspf":"Enable support for reading and saving XSPF playlists"},"hydrogen":{"archive":"Use libarchive instead of libtar"},"jack-audio-connection-kit":{"coreaudio":"Build the CoreAudio driver on Mac OS X systems","cpudetection":"Enables runtime cpudetection","pam":"Add basic realime configuration via sys-auth/realtime-base"},"jalv":{"gtk2":"Adds support for GTK+2 in addition to GTK+3 controlled by the gtk useflag.","gtkmm":"Adds support for dev-cpp/gtkmm: C++ interface for GTK+2"},"kid3":{"acoustid":"Enable support for acoustic fingerprinting plugin using (media-libs/chromaprint)","phonon":"Enable sound support via media-libs/phonon or dev-qt/qtphonon"},"kwave":{"opus":"Enable Opus audio codec support","phonon":"Enable playback via Phonon"},"lame":{"mp3rtp":"Build the mp3-to-RTP streaming utility. **UNSUPPORTED**"},"lmms":{"fluidsynth":"Enables Fluidsynth MIDI software synthesis plugin.","stk":"Enables STK Mallet plugin.","vst":"Enables the VeSTige plugin to run VST plugins through Wine."},"lyvi":{"mpris":"Enable MPRIS support"},"mangler":{"espeak":"Text to speech engine","g15":"Logitech g15 lcd support","opus":"Codec specialized for speech over the internet"},"mixxx":{"hid":"Enable HID controller support","shout":"Enable broadcasting support via media-libs/libshout","vamp":"Enable vamp analyzing plugins support"},"moc":{"cache":"Enable tags caching support","magic":"Use libmagic to determine mimetypes","sid":"Build with SID (Commodore 64 Audio) support","tremor":"Build vorbis support using an integer implementation of the vorbis library (media-libs/tremor)"},"mp3blaster":{"sid":"Build with SID (Commodore 64 Audio) support"},"mp3splt-gtk":{"audacious":"Include media-sound/audacious support","gtk3":"Link against x11-libs/gtk+:3 instead of x11-libs/gtk+:2"},"mpd":{"adplug":"Enable the AdPlug decoder plugin","cdio":"Use libcdio for ISO9660 parsing support","curl":"Support for web stream listening","faad":"Use external faad library for AAC decoding","fifo":"Support writing audio to a FIFO","fluidsynth":"Enables Fluidsynth MIDI software synthesis (discouraged)","glib":"Enable GLib usage","gme":"Enables support for media-libs/game-music-emu for playing various video game music formats.","id3tag":"Support for ID3 tags","inotify":"Use the Linux kernel inotify subsystem to notice changes to mpd music library","lame":"Support for MP3 streaming via Icecast2","lastfmradio":"Support listening to last.fm radio stations","libmpdclient":"Enable support for remote mpd databases","libsoxr":"Enable the libsoxr resampler","mpg123":"Enable support for mp3 decoding over media-sound/mpg123","network":"Enables network streaming support","nfs":"Enable support for the Network File System","opus":"Enable Opus codec support","pipe":"Support writing audio to a pipe","recorder":"Enables output plugin for recording radio streams","sid":"Build with SID (Commodore 64 Audio) support","soundcloud":"Build plugin to access soundcloud","soup":"Use net-libs/libsoup for HTTP streaming","systemd":"Enable support for systemd socket activation","twolame":"Support twolame MPEG-2 encoding","wildmidi":"Enable MIDI support via wildmidi","zip":"Support for ZIP files"},"mpfc":{"wav":"Enable wav audio codec support"},"mpg123":{"int-quality":"Use rounding instead of fast truncation for integer output, where possible"},"mumble":{"g15":"Enable support for the Logitech G15 LCD (and compatible devices).","speech":"Enable text-to-speech support in Mumble."},"murmur":{"ice":"Use dev-cpp/Ice to enable remote control capabilities."},"ncmpc":{"artist-screen":"Enable artist screen","chat-screen":"Enable the chat screen","colors":"Enable color support","help-screen":"Enable the help screen","key-screen":"Enable key editor screen","lyrics-screen":"Enable lyrics screen","mouse":"Enable curses getmouse support","search-screen":"Enable search screen","song-screen":"Enable song viewer screen"},"ncmpcpp":{"clock":"Enable clock screen","outputs":"Enable outputs screen","visualizer":"Enable visualizer screen with sound wave/frequency spectrum modes"},"pianobooster":{"fluidsynth":"Enable Fluidsynth MIDI software synthesis"},"picard":{"acoustid":"Use media-libs/chromaprint for acoustic fingerprinting"},"pithos":{"appindicator":"Enable usage of appindicator to export menu options in to unity","keybinder":"Use keybinder to enable global key bindings"},"pms":{"regex":"Enable regular expression searches using dev-libs/boost"},"podcatcher":{"bittorrent":"Enable support for bittorrent downloads"},"pragha":{"glyr":"Enable music metadata searchengine support using media-libs/glyr","grilo":"Play songs on DLNA servers using media-libs/grilo","keybinder":"Enable shortcut support using dev-libs/keybinder","lastfm":"Enable last.fm support using media-libs/libclastfm","peas":"Enable various plugins that will pull in dev-libs/libpeas as a dependency","playlist":"Enable enhanced playlist support using dev-libs/totem-pl-parser","rygel":"Share music on DLNA using net-misc/rygel","soup":"Search metadata on AcoustID and radios on TuneIn using net-libs/libsoup"},"puddletag":{"acoustid":"Use media-libs/chromaprint for acoustic fingerprinting","cover":"Enables editing of FLAC cover art","musicbrainz":"Enables support for musicbrainz, needs dev-python/python-musicbrainz","quodlibet":"Enables support for editing media-sound/quodlibet databases"},"pulseaudio":{"X":"Build the X11 publish module to export PulseAudio information through X11 protocol for clients to make use. Don't enable this flag if you want to use a system wide instance. If unsure, enable this flag.","alsa-plugin":"Request installing media-plugins/alsa-plugins with PulseAudio plugin enabled. This ensures that clients supporting ALSA only will use PulseAudio.","asyncns":"Use libasyncns for asynchronous name resolution.","doc":"Build the doxygen-described API documentation.","equalizer":"Enable the equalizer module (requires sci-libs/fftw).","gdbm":"Use sys-libs/gdbm to store PulseAudio databases. Recommended for desktop usage. This flag causes the whole package to be licensed under GPL-2 or later.","glib":"Add support to dev-libs/glib-based mainloop for the libpulse client library, to allow using libpulse on glib-based programs.","gnome":"Use GConf to store user preferences on streams and so on. Don't enable this flag if you want to use a system wide instance. If unsure, enable this flag.","native-headset":"Build with native HSP backend for bluez 5.","ofono-headset":"Build with oFono HFP backend for bluez 5, requires net-misc/ofono.","oss":"Enable OSS sink/source (output/input). Deprecated, upstream does not support this on systems where other sink/source systems are available (i.e.: Linux). The padsp wrapper is now always build if the system supports OSS at all.","realtime":"Makes PulseAudio use RealtimeKit (sys-auth/rtkit) to get real-time priority while running.","ssl":"Use dev-libs/openssl to provide support for RAOP (AirPort) streaming.","system-wide":"Allow preparation and installation of the system-wide init script for PulseAudio. Since this support is only supported for embedded situations, do not enable without reading the upstream instructions at http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/WhatIsWrongWithSystemWide/ .","systemd":"Build with sys-apps/systemd support to replace standalone ConsoleKit.","webrtc-aec":"Uses the webrtc.org AudioProcessing library for enhancing VoIP calls greatly in applications that support it by performing acoustic echo cancellation, analog gain control, noise suppression and other processing.","xen":"Builds a special paravirtualized module for running in a Xen guest."},"qmmp":{"bs2b":"Enable Bauer stereophonic-to-binaural headphone filter","cover":"Enable album cover support","crossfade":"Enable crossfade effect when switching tracks","enca":"Detects the character encoding automatically","game":"Enable Game music support","kde":"Use kde4 notifier system","lyrics":"Fetch track lyrics from the web","midi":"Enable midi support using wildmidi library","mpris":"Enable MPRIS support","notifier":"Enable qmmps' notifier system","opus":"Enable the opus plugin","projectm":"Enable projectm music visualization plugin","scrobbler":"Enable audioscrobbler/last.fm support","stereo":"Enable stereo effect","tray":"Build tray icon"},"qsampler":{"libgig":"Enable libgig support for loading Gigasampler files and DLS (Downloadable Sounds) Level 1/2 files"},"qtractor":{"dssi":"Enable support for DSSI Soft Synth Interface","rubberband":"Enable support for in-place audio clip pitch-shifting through the rubberband library"},"qtscrobbler":{"cli":"Build commandline client"},"quark":{"gnome":"Provides tray-icon and enables gconf support"},"rezound":{"16bittmp":"Use 16bit temporary files (default 32bit float), useful for slower computers","soundtouch":"compile with support for soundtouch"},"rhythmbox":{"daap":"Build the local network music sharing plugin which uses the DAAP protocol using net-libs/libdmapsharing","html":"Use net-libs/webkit-gtk for detecting and displaying HTML podcast episode descriptions.","libsecret":"Enable libsecret support to store login credentials","visualizer":"Enable support for visualizations using media-plugins/gst-plugins-libvisual","zeitgeist":"Build the plugin to inject events to gnome-extra/zeitgeist"},"rubyripper":{"cdrdao":"Add support for advanced toc scanning using app-cdr/cdrdao","cli":"Build command line interface rubyripper","normalize":"Add support for normalizing audio file volume levels","wav":"Add support for wavegain"},"shntool":{"alac":"Add support for Apple Lossless Audio Codec files","mac":"Add support for Monkey's Audio files"},"snd":{"s7":"Enable the s7 extension language (a version of Scheme)"},"sonata":{"lyrics":"Support for lyrics fetching","trayicon":"Enable support for trayicon"},"sonic-visualiser":{"id3tag":"Enables ID3 tagging with id3tag library"},"soundconverter":{"opus":"Enable Opus audio codec support"},"sox":{"amr":"Enables Adaptive Multi-Rate Audio support","id3tag":"Enables ID3 tagging with id3tag library","opus":"Enables reading Ogg Opus files.","twolame":"Enables twolame support (MPEG Audio Layer 2 encoder)"},"split2flac":{"enca":"Try to guess the charset using enca","flake":"Add support for Flake, alternative FLAC encoder","mac":"Add support for Monkey's Audio files","replaygain":"Support for Replay Gain metadata, for relative volume adjustment"},"spotify":{"pax_kernel":"Triggers a paxmarking of the main Spotify binary"},"squeezeslave":{"display":"Enable a text-based display","tremor":"Use a fixed-point version of the Ogg Vorbis decoder (media-libs/tremor)","wma":"Enable support for streaming Windows Media Audio","zones":"Pairs surround sound speakers into stereo zones (requires 5.1 setup or better)"},"teamspeak-server-bin":{"tsdns":"Make use of TeamSpeak DNS."},"tomahawk":{"hatchet":"Enable support for the synchronisation through Hatchet","telepathy":"Enable support for the real-time communication framework telepathy"},"traverso":{"lv2":"Add support for Ladspa V2"},"umurmur":{"polarssl":"Use net-libs/polarssl instead of dev-libs/openssl"},"vimpc":{"boost":"Use boost instead of C++11 libraries"},"vorbis-tools":{"kate":"Adds support for Ogg Kate subtitles via libkate.","ogg123":"Build ogg123 player, needs libao and curl"},"wildmidi":{"player":"Install the wildmidi player"},"xmms2":{"airplay":"Support for airplay format","asf":"Support for Monkey's Audio (APE) format with help of bundled libasf","gvfs":"Transport for glibs virtual filesystem","ices":"Icecast source output plugin","mac":"Support for Monkey's Audio (APE) format with help of media-sound/mac","mlib-update":"Enable building of xmms2-mlib-updater client","ofa":"Support for Open Fingerprint Architecture (OFA)","phonehome":"This client sends anonymous usage-statistics to the xmms2","server":"Build xmms2 player daemon (otherwise only clients are built)","sid":"Support for C64 SID","vocoder":"Phase vocoder effect plugin","xml":"Enable support for various XML based playlists and sources: RSS, XSPF"},"xmp":{"audacious":"Enable audacious support"},"xnoise":{"lastfm":"Enable support for lastfm cover art fetching and scrobbling","lyrics":"Enable support for lyrics fetching"},"xwax":{"alsa":"Adds support for ALSA audio input/output.","cdda":"Sets runtime dependencies to support decoding audio from a compact disc.","fallback":"Sets runtime dependencies to support decoding \"other\" audio files.","jack":"Adds support for audio input/output via the JACK Audio Connection Kit.","mp3":"Sets runtime dependencies to support decoding MP3 audio.","oss":"Adds support for OSS (open sound system) audio input/output."},"yoshimi":{"lv2":"Add support for Ladspa V2"}},"media-tv":{"freevo":{"mixer":"Enable support for adjusting volume via media-sound/aumix","tv":"Enable support for the tv guide plugin"},"gentoo-vdr-scripts":{"nvram":"Add support for using nvram-wakeup to set wakeup time in bios"},"kodi":{"airplay":"enable AirPlay support","bluray":"Enable playback of Blu-ray filesystems","cec":"Enable support for HDMI-CEC devices via libcec","fishbmc":"Enable fishBMC visualization plugin","gles":"Enable support for GLES","goom":"Enable GOOM visualization plugin","midi":"Support MIDI files","nfs":"Enable NFS client support","projectm":"Enable projectM visualization plugin","pvr":"Enable MythTV support","raspberry-pi":"Enable support for the Raspberry Pi","rsxs":"Enable really slick X screensavers","rtmp":"Enable Real Time Messaging Protocol using librtmp","sftp":"Support browsing files over SFTP","webserver":"Enable internal webserver","xrandr":"Support X randr extension"},"linuxtv-dvb-apps":{"alevt":"Build videotext decoder"},"me-tv":{"http":"Installation of Web-frontend"},"mythtv":{"alsa":"Allows MythTV to directly output sound to ALSA devices, this is needed if you are using ALSA dmix or SPDIF. Note, you will have to physically type your device into the MythTV configuration since it will only give you /dev/dsp devices in the drop down.","altivec":"Builds ffmpeg's codec libraries with altivec support.","autostart":"Uses a custom autostart configuration gleaned from experience with MythTV since its early versions and discussed with other MythTV maintainers and users. Does not rely on KDE being installed like most methods do.","bluray":"Pulls in libbluray for BluRay support.","cec":"Allows you to control CEC enabled TVs via HDMI. Currently requires a USB based CEC -> HDMI injector between your TV and video card since no graphics drivers support CEC natively.","crystalhd":"Allows you to utilize a Broadcom CrystalHD hardware based video decoder to improve the performance of video decode.","debug":"Instructs Qt to use the 'debug' target instead of 'release' target. If your MythTV is crashing or you need a backtrace, you need to compile it with this option otherwise the debugging data is useless.","dvb":"Enables support for Linux DVB cards. These include all cards that work with digital signals such as ATSC, DVB-T, DVB-C, and DVB-S, QAM-64, and QAM-256.","egl":"Support EGL video output.","fftw":"Support visualizations via sci-libs/fftw","hls":"HTTP Live Streaming support","ieee1394":"Allows MythTV to communicate and use Firewire enabled Cable boxes. These are typically found in the United States, where such support is required by law. This will also install Firewire test programs and external channel changers if the internal changer does not work.","jack":"Allows MythTV to use JACK as your sound output device. You will have to manually configure the path to your JACK settings.","lcd":"Tells MythTV that you have an instance of app-misc/lcdproc configured on your machine and it should output information such as current time, show name, episode name, etc to that LCD.","lirc":"Adds LIRC support directly to MythTV allowing for built in control via a LIRC device.","perl":"Builds the perl bindings for MythTV. Allows you to write scripts in Perl to control your MythTV setup or communicate with it.","raop":"Remote Audio Output Protocol (aka AirTunes/AirPlay)","xmltv":"Pulls in the media-tv/xmltv TV listing grabbers for users not using Schedules Direct."},"tvbrowser":{"themes":"Install extra theme packs"},"tvheadend":{"ccache":"Use dev-util/ccache","dvbscan":"Use media-tv/linuxtv-dvb-apps","imagecache":"Enable support for image caching","uriparser":"Use dev-libs/uriparser","xmltv":"Use media-tv/xmltv"},"v4l-dvb-saa716x":{"firmware":"Install firmware"},"xawtv":{"xext":"Enable use of XFree extensions (DGA,VidMode,DPMS)","zvbi":"Enable VBI Decoding Library for Zapping"},"xbmc":{"airplay":"enable AirPlay support","bluray":"Enable playback of Blu-ray filesystems","cec":"Enable support for HDMI-CEC devices via libcec","fishbmc":"Enable fishBMC visualization plugin","gles":"Enable support for GLES","goom":"Enable GOOM visualization plugin","midi":"Support MIDI files","nfs":"Enable NFS client support","projectm":"Enable projectM visualization plugin","pvr":"Enable MythTV support","rsxs":"Enable really slick X screensavers","rtmp":"Enable Real Time Messaging Protocol using librtmp","sftp":"Support browsing files over SFTP","webserver":"Enable internal webserver","xrandr":"Support X randr extension"},"xmltv":{"ar":"Argentina tv listing grabber","ch":"Switzerland bluewin tv listing grabber","dk":"Denmark tv listing grabber","dtvla":"Latin America digital tv listing grabber","ee":"Estonia tv listing grabber","es_laguiatv":"Spain alternative grabber","es_miguiatv":"Spain alternative grabber","eu_epg":"EPG grabber for some European countries.","fi":"Finland tv listing grabber","fr":"France tv listing grabber","hr":"Croatia tv listing grabber","huro":"Hungarian tv listing grabber","il":"Israel tv listing grabber","in":"India tv listing grabber","is":"Iceland tv listing grabber","it":"Italy tv listing grabber","na_dd":"North America tv listing grabber","na_dtv":"North America Direct TV grabber","na_icons":"option for na_dd to download icons","nl":"Netherlands tv listing grabber","no_gf":"Norway Gfeed tv listing grabber","pt":"Portugal tv listing grabber","re":"Reunion Island (France) tv listing grabber","se_swedb":"Sweden tv listing grabber","tv_check":"enable GUI checking","tv_combiner":"enable grabbers combiner","tv_pick_cgi":"enable CGI support","uk_bleb":"Britain tv listing grabber","uk_rt":"Britain alternative tv listing grabber","za":"South Africa tv listing grabber"}},"media-video":{"aravis":{"X":"Build the GTK+-based video viewer for aravis. This requires GStreamer and a few plugins but technically not the GST plugin for aravis.","gstreamer":"Build the GStreamer plugin for aravis, but not the video viewer."},"arista":{"faac":"Use external faac library for AAC encoding","nautilus":"Add an entry in the Nautilus context menu to transcode media files for a specified device."},"avidemux":{"aften":"Enable A/52 (AC-3) audio encoder support.","amr":"Enable Adaptive Multi-Rate format support via media-libs/opencore-amr.","vpx":"Enable VP8 codec support via media-libs/libvpx."},"bombono-dvd":{"gnome":"Use GVFS for desktop integration"},"chaplin":{"transcode":"Enable DVD ripping and transcoding"},"clive":{"clipboard":"Support reading from X clipboard","pager":"Support pager!?","password":"Support password controlled sites"},"devede":{"mencoder":"Prefer MPlayer mencoder over Libav avconv or FFmpeg ffmpeg for encoding."},"dv2sub":{"kino":"install kino plugin"},"dvd-slideshow":{"themes":"Install theme pack"},"dvdauthor":{"graphicsmagick":"Use media-gfx/graphicsmagick instead of media-gfx/imagemagick"},"dvdrip":{"fping":"Enables fping support for cluster rendering","subtitles":"Enables support for subtitle ripping"},"ffdiaporama":{"openclipart":"Support openslipart database","texturemate":"Install extra backgrounds"},"ffmpeg":{"aacplus":"AAC+ encoding via media-libs/libaacplus.","amr":"Enables Adaptive Multi-Rate Audio support","amrenc":"Enables Adaptive Multi-Rate Audio encoding support with media-libs/vo-amrwbenc.","armv5te":"Enables optimizations for armv5te processors.","armv6":"Enables optimizations for armv6 processors.","armv6t2":"Enables optimizations for armv6t2 processors.","armvfp":"Enables VFP optimizations for ARM processors.","bluray":"Enable playback of Blu-ray filesystems","bs2b":"Enables media-libs/libbs2b based Bauer stereo-to-binaural filter.","cdio":"Enables audio CD grabbing with dev-libs/libcdio.","celt":"Adds Xiph CELT audio decoding support via media-libs/celt","cpudetection":"Enables runtime CPU detection (useful for bindist, compatibility on other CPUs)","dirac":"Enable Dirac video support (an advanced royalty-free video compression format) via the reference library: dirac.","faac":"Use external faac library for AAC encoding","fdk":"Use external fdk-aac library for AAC encoding","flite":"Adds a text-to-speech filter based on app-accessibility/flite.","frei0r":"Enable frei0r wrapping in libavfilter","fribidi":"Enables fribidi support in the drawtext filter.","gme":"Enables support for media-libs/game-music-emu for playing various video game music formats.","gpl":"Build GPL code. Should be enabled unless you require LGPL binaries.","hardcoded-tables":"Use pre-calculated tables rather than calculating them on the fly.","iec61883":"Support for FireWire DV/HDV input device using media-libs/libiec61883.","libsoxr":"Enables audio resampling through media-libs/soxr.","libv4l":"Uses media-libs/libv4l for video4linux instead of direct calls. Adds support for more devices via the userspace library.","mips32r2":"Enables MIPS32R2 optimizations.","mipsdspr1":"Enables MIPS DSP ASE R1 optimizations.","mipsdspr2":"Enables MIPS DSP ASE R2 optimizations.","mipsfpu":"Enables floating point MIPS optimizations.","network":"Enables network streaming support","openssl":"Enables dev-libs/openssl support. Adds support for encrypted network protocols (TLS/HTTPS).","opus":"Adds (decoding) support for the Opus codec via media-libs/opus.","pic":"Force shared libraries to be built as PIC (this is slower)","postproc":"Build and install libpostproc.","quvi":"Adds support for playing media from Internet services using the quvi project.","rtmp":"Enable Real Time Messaging Protocol using librtmp","schroedinger":"Enable Dirac video support (an advanced royalty-free video compression format) via libschroedinger (high-speed implementation in C of the Dirac codec).","ssh":"Enable SSH/sftp support via net-libs/libssh.","twolame":"Enables MP2 encoding via media-sound/twolame as an alternative to the internal encoder.","vis":"Adds support for SIMD optimizations for UltraSPARC processors.","vpx":"Enables vp8 codec support using libvpx: Decoding vp8 does not require this to be enabled but libvpx can also be used for decoding; encoding vp8 requires this useflag to be enabled though.","webp":"Enables WebP encoding with media-libs/libwebp.","x265":"Enables HEVC encoding with media-libs/x265.","zvbi":"Enables media-libs/zvbi based teletext decoder."},"ffmpeg2theora":{"kate":"Adds support for Ogg Kate subtitles via libkate."},"gnome-mplayer":{"dconf":"Enable support for gnome-base/dconf","gda":"Enable support for gnome-extra/libgda"},"google2srt":{"html":"Install HTML documentation"},"h264enc":{"ogm":"Support for OGM container format"},"handbrake":{"fdk":"Support for encoding AAC using media-libs/fdk-aac.","ffmpeg":"Use FFmpeg from media-video/ffmpeg to decode MPEG-2 instead of media-plugins/gst-plugins-mpeg2dec.","gstreamer":"Support for the streaming media framework from media-libs/gstreamer.","gtk":"Support for Gimp ToolKit + from x11-libs/gtk+, requirement for a GUI-based HandBrake.","libav-aac":"Support for encoding AAC using media-libs/libav's internal encoder."},"kdenlive":{"nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)"},"kino":{"gpac":"Enable GPAC support when exporting to 3GPP format"},"kmplayer":{"npp":"Compile the npp backend that plays xembed style browser plugins."},"libav":{"aac":"Use external vo-aacenc library for AAC encoding","amr":"Enable Adaptive Multi-Rate Audio support","armv5te":"Enable optimizations for armv5te processors","armv6":"Enable optimizations for armv6 processors","armv6t2":"Enable optimizations for armv6t2 processors","armvfp":"Enable VFP optimizations for ARM processors","bs2b":"Enable media-libs/libbs2b based Bauer stereo-to-binaural audio filter","cdio":"Enable audio CD grabbing with dev-libs/libcdio.","cpudetection":"Enables runtime CPU detection (useful for bindist, compatibility on other CPUs).","faac":"Use external faac library for AAC encoding","fdk":"Use external fdk-aac library for AAC encoding and decoding","frei0r":"Enable frei0r wrapping in libavfilter","gpl":"Build all GPL licensed code. Without this flag set the package is build under LGPL license.","hardcoded-tables":"Use pre-calculated tables rather than calculating them on the fly.","network":"Enable network streaming support.","openssl":"Prefer dev-libs/openssl over net-libs/gnutls to provide SSL/TLS support (notice: the resulting binaries are unredistributable).","opus":"Use the external opus library for encoding and decoding.","pic":"Force shared libraries to be built as PIC (this is slower).","pulseaudio":"Enable pulseaudio input support.","rtmp":"Enable Real Time Messaging Protocol using librtmp instead the native implementation.","schroedinger":"Enable Dirac video support (an advanced royalty-free video compression format) via libschroedinger (high-speed implementation in C of the Dirac codec).","ssl":"Enable SSL/TLS support using dev-libs/openssl or dev-libs/gnutls.","tools":"Build and install small tools like aviocat, cws2fws, graph2dot, ismindex, qt-faststart.","twolame":"Enable MP2 encoding via media-sound/twolame as an alternative to the internal encoder","vis":"Adds support for SIMD optimizations for UltraSPARC processors.","vpx":"Enable vp8 encoding support using libvpx.","webp":"Enable WebP encoding with media-libs/libwebp.","x265":"Enable HEVC encoding with media-libs/x265."},"lives":{"libvisual":"Enable libvisual support"},"minitube":{"download":"Enable support for downloading YouTube videos"},"mjpegtools":{"sdlgfx":"Enables y4mhist to display a graphical histogram"},"mjpg-streamer":{"input_control":"Plugin giving ability to control camera movement (only specific cameras)","input_file":"Plugin that watches given directory and send it's content","input_testpicture":"Plugin for sending compiled in, test pictures","input_uvc":"Plugin that sends video stream from UVC compatible camera","output_autofocus":"Auto focusing plugin","output_file":"Plugin that saves received content under given location","output_http":"Small HTTP server plugin which sends WWW directory content and streams image content","output_rtsp":"Plugin which provides a mechanism to take snapshots with a trigger from a UDP packet","output_udp":"Plugin receiving content over UDP and storing to a directory","v4l":"Uses media-libs/libv4l function mapping for input_uvc plugin","www":"Installs WWW content"},"motiontrack":{"multiprocess":"Enables multi-process support (SMP/cluster) for motiontrack programs"},"mplayer":{"bl":"Blinkenlights video output","bluray":"Enable playback of Blu-ray filesystems","bs2b":"Enable Bauer stereophonic-to-binaural headphone filter","cdio":"Use libcdio for CD support (instead of cdparanoia)","cpudetection":"Enables runtime CPU detection (useful for binpkgs, compatibility on other CPUs)","dvdnav":"Use forked libdvdnav, navigate menus in GUIs","enca":"Enables support for charset discovery and conversion","faac":"Use external faac library for AAC encoding","faad":"Use external faad library for AAC decoding","libmpeg2":"Build support for mpeg2 over media-libs/libmpeg2 rather than using ffmpeg.","live":"Enables live.com streaming media support","md5sum":"Enables md5sum video output","mng":"MNG input support","network":"Enables network streaming support","nut":"Enables support for the NUT container format","osdmenu":"Enables support for on-screen display (OSD) menus","pnm":"Add PNM video output option, to create PPM/PGM/PGMYUV images","pvr":"Enable Video4Linux2 MPEG PVR","radio":"Enable V4L2 radio interface and support","rar":"Enable Unique RAR File Library","rtc":"Enables usage of the linux real time clock. The alternative is software emulation of rtc","rtmp":"Enables RTMPDump Streaming Media support","shm":"Enable support for shm","tga":"Enables Targa video output","toolame":"Enable toolame MPEG-2 encoding","tremor":"Enable internal support for Vorbis","twolame":"Enable twolame MPEG-2 encoding","vidix":"Support for vidix video output","xanim":"Enables support for xanim based codecs","xvmc":"Enables X-Video Motion Compensation support","zoran":"Enables ZR360[56]7/ZR36060 video output"},"mplayer2":{"bluray":"Enable playback of Blu-ray filesystems","bs2b":"Enable Bauer stereophonic-to-binaural headphone filter","cdio":"Use libcdio for CD support (instead of cdparanoia)","cpudetection":"Enables runtime CPU detection (useful for bindist, compatibility on other CPUs)","dvdnav":"Use forked libdvdnav, navigate menus in GUIs","enca":"Enables support for charset discovery and conversion","md5sum":"Enables md5sum video output","mng":"MNG input support","mp3":"Enable support for mp3 decoding over media-sound/mpg123 instead of relying on ffmpeg support.","network":"Enables network streaming support","pnm":"Add PNM video output option, to create PPM/PGM/PGMYUV images","postproc":"Enable image post-processing via libpostproc","pvr":"Enable Video4Linux2 MPEG PVR","quvi":"Enable support for streaming sites using media-libs/libquvi","radio":"Enable V4L2 radio interface and support","shm":"Enable support for shm","symlink":"Copy all binaries and configuration into locations occupied by media-video/mplayer and thus act like drop-in replacement.","tga":"Enables Targa video output","yuv4mpeg":"Enables yuv4mpeg video output"},"mpv":{"bluray":"Enable playback of Blu-ray filesystems","bs2b":"Enable Bauer stereophonic-to-binaural headphone filter","cdio":"Enable CDDA support via dev-libs/libcdio-paranoia","cli":"Build mpv CLI player","doc-pdf":"Build documentation in pdf format","dvdnav":"Enable support for DVD navigation using media-libs/libdvdnav","egl":"Enable EGL backend for X11 OpenGL video output (experimental)","enca":"Enable support for charset discovery and conversion using app-i18n/enca","jpeg":"Enable support for saving screenshots to JPEG format","libguess":"Enable support for charset discovery and conversion using app-i18n/libguess","libmpv":"Build mpv shared library","lua":"Enable Lua scripting, OSC (On Screen Controller) GUI and net-misc/youtube-dl hook-script","luajit":"Use dev-lang/luajit instead of dev-lang/lua","mpg123":"Enable support for mp3 decoding via media-sound/mpg123 instead of relying on ffmpeg support","postproc":"Enable image post-processing via libpostproc","pvr":"Enable Video4Linux2 MPEG PVR","quvi":"Enable support for streaming sites using media-libs/libquvi","radio":"Enable V4L2 radio interface and support","rubberband":"Enable high quality pitch correction via media-libs/rubberband","sdl":"Enable media-libs/libsdl2 based video and audio outputs","shm":"Enable support for shm","vf-dlopen":"Install additional video filters for using with -vf dlopen"},"noad":{"libmpeg2":"Support for libmpeg2 library"},"ogmrip":{"ogm":"Support for OGM container format","srt":"Support for SRT subtitle format"},"parole":{"clutter":"Compile in Clutter GTK+ support"},"pgcedit":{"video":"Add support for video preview"},"plasma-mediacenter":{"nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)"},"qgifer":{"imagemagick":"Use imagemagick for image operations"},"rtmpdump":{"gnutls":"Use GnuTLS library instead of the default OpenSSL","polarssl":"Use PolarSSL library instead of the default OpenSSL"},"smplayer":{"autoshutdown":"Enable the option to shutdown your computer after finishing the playlist. This requires dev-qt/qtdbus as dependency.","streaming":"Support for streaming video sites through net-misc/youtube-dl (MPV only)."},"smplayer2":{"download-subs":"Enable subtitle downloader (requires QuaZip)"},"totem":{"flash":"Install browser plugin for playing embedded Adobe Flash videos. Warning: breaks non-video Flash objects on many websites.","lirc":"Enable support for controlling Totem with a remote control using app-misc/lirc","nautilus":"Enable the nautilus extension","python":"Build support for dev-lang/python plugins","zeitgeist":"Build the plugin to inject events to gnome-extra/zeitgeist"},"transcode":{"mjpeg":"Enables mjpegtools support","nuv":"NuppelVideo container format demuxing","pic":"disable optimized assembly code that is not PIC friendly","postproc":"Build with ffmpeg libpostproc support"},"tsmuxer":{"qt4":"Installs tsMuxerGUI (needs Qt4)"},"ushare":{"dlna":"Add DLNA (media-libs/libdlna) support"},"vdr":{"alternatechannel":"Use alternate channel on record","bidi":"fribid support, for languages, written from right to left","ddepgentry":"remove duplicate EPG entries","dvlvidprefer":"controls video-dir choice on recording","graphtft":"support for media-plugins/vdr-grapftftplugin up from vdr-graphtft-0.1.7","html":"Install HTML documentation","jumpingseconds":"skip seconds in played records","jumpplay":"Enables automatic jumping over cut marks while watching a recording","kbd":"enable keyboard support as remote device","mainmenuhooks":"Allows to replace main menu entries by some special plugins (like epgsearch, extrecmenu, ...)","menuorg":"Enables support for the media-plugins/vdr-menuorg","menuselection":"adds support for menu hotkeys of double digits","naludump":"Removes NALU fill data from h.264-Streams of TS files","permashift":"permanent timeshift by recording live TV on hard disk, need plugin media-plugins/vdr-vdr-permashift","permashift_v1":"permanent timeshift by recording live TV on RAM, need plugin >=mediaplugins/vdr-permashift-1","pinplugin":"Support for media-plugins/vdr-pin","resumereset":"rreset resume of EOF","rotor":"Enable support for plugin media-plugins/vdr-rotor for dish-positioner.","ttxtsubs":"support for media-pugins/vdr-ttxtsubs","vasarajanauloja":"replacement for the liemikuutio patch, adds some nice must haves features","wareagleicon":"Replace original icon set in menu","yaepg":"Enables support for the media-plugins/vdr-yaepg"},"vlc":{"X":"Enables support for, e.g., fullscreen mode via the X Window System. By itself, this flag does not build a graphical interface.","atmo":"Enables support for AtmoLight (homebrew Ambient Lighting Technology)","audioqueue":"Enables AudioQueue audio module for Mac OS X.","avcodec":"Enables libavcodec support for video/audio encoding/decoding. libavcodec is part of FFmpeg.","avformat":"Enables libformat support for reading and writing various media containers. libavformat is part of FFmpeg.","bluray":"Enables libbluray for Blu-ray disc support.","chromaprint":"Enables libchromaprint for Chromaprint based audio fingerprinter support.","dc1394":"Enables IIDC cameras support.","dirac":"Enable Dirac video support (an advanced royalty-free video compression format) via the reference library: dirac.","directx":"Enable Win32 DirectX support.","dvbpsi":"Enables support for Mpeg-TS files (.ts, .m2ts, .mts) via media-libs/libdvbpsi.","dxva2":"Enables Win32 DxVA2 support.","egl":"Enables EGL video output module.","faad":"Enable AAC audio decoding library support via media-libs/faad2.","fdk":"Enables the Fraunhofer AAC codec library.","fluidsynth":"Enables Fluidsynth MIDI software synthesis (with external sound fonts).","gcrypt":"Enables cryptography support via libgcrypt.","gme":"Enables support for media-libs/game-music-emu for playing various video game music formats.","gnome":"Adds support for GNOME's filesystem abstraction layer, gnome-base/gnome-vfs. This flag is not GUI-related.","growl":"Enables growl notification support (over UDP for remote access and native on OSX)","httpd":"Enables a web based interface for vlc.","ios-vout":"Enables iPhone OS video output.","kate":"Adds support for Ogg Kate subtitles via libkate.","libtar":"Uses libtar instead of the built-in tar reader for reading custom skins.","libtiger":"Enables Ogg Kate subtitles rendering using libtiger.","linsys":"Enables support for Linux Linear Systems Ltd. SDI and HD-SDI input cards.","live":"Enables live555 streaming media support (client support for rtsp).","lua":"Enable Lua scripting support, needed for including support for Jamendo (online music platform) and similar things.","macosx":"Enables Mac OS X gui support.","macosx-audio":"Enables Mac OS X audio module.","macosx-dialog-provider":"Enables Mac OS X dialog module.","macosx-eyetv":"Enables Mac OS X EyeTV (TNT Tuner) module.","macosx-qtkit":"Enables Mac OS X qtkit module: qtcapture (video) and qtsound (audio) module.","macosx-quartztext":"Enables Mac OS X quartz text module.","macosx-vout":"Enables Mac OS X video output module.","matroska":"Enables matroska support using reference libraries (fallback on other existing matroska support if disabled, i.e., matroska enabled FFmpeg)","media-library":"Build the (sqlite based) media library.","omxil":"Enables OpenMAX Integration Layer codec module.","opencv":"Enabled OpenCV (computer vision) filter module.","optimisememory":"Enable optimisation for memory rather than performance.","opus":"Support opus decoding via libopus.","postproc":"Enables image post-processing via libpostproc (part of FFmpeg).","projectm":"Enables the projectM visualization plugin.","qt4":"Builds a Qt4 based frontend, a graphical interface.","qt5":"Builds a Qt5 based frontend, a graphical interface.","rdp":"Enables freerdp for RDP/Remote Desktop client support","rtsp":"Enables real audio and RTSP modules.","run-as-root":"Allows vlc to start for root. Don't enable this unless you have a very specific (e.g. embedded) need for it!","schroedinger":"Enable Dirac video support (an advanced royalty-free video compression format) via libschroedinger (high-speed implementation in C of the Dirac codec).","sdl-image":"Enables sdl image video decoder (depends on sdl)","sftp":"Enables libssh2 to support SFTP file transfer.","shout":"Enables libshout output.","sid":"Adds support for playing C64 SID files through media-libs/libsidplay-2.","skins":"Enables support for the skins2 interface.","swscale":"Enables image scaling and conversion via libswscale (part of FFmpeg).","tremor":"Enables tremor, a fixed-point version of the Ogg Vorbis decoder.","twolame":"Enables twolame support (MPEG Audio Layer 2 encoder).","upnp":"Enables support for the Intel SDK stack based UPnP discovery module instead of CyberLink.","vcdx":"Enables VCD with navigation via libvcdinfo (depends on cdio)","vlm":"New videolan (media) manager (vlm), a little manager designed to launch and manage multiple streams from within one instance of VLC.","vpx":"Enables the decoder(s) from the WebM VP8 / VP9 Codec SDK.","wma-fixed":"Enables fixed point WMA decoder.","x265":"Support X265 Encoder.","xcb":"Support the X C-language Binding, a replacement for Xlib; !!! you will need this option to be able to integrate video in the Qt interface, see bug #500678.","zvbi":"Enables support for teletext subtitles via the zvbi library."},"winki":{"mjpeg":"Enables mjpegtools support"},"x264-encoder":{"10bit":"Set output bit depth to 10","avs":"enable AvxSynth support in the AviSynth input module","ffmpegsource":"Enable ffmpegsource aka ffms support, disables lavf","interlaced":"Enable interlaced encoding support, this can decrease encoding speed by up to 2%"},"xine-ui":{"vdr":"Enables Video Disk Recorder support"}},"net-analyzer":{"2ping":{"crc":"Enable crc check.","md5":"Enable md5 hash check.","server":"Install the server init scripts.","sha":"Enable sha1 or sha256 check."},"aimsniff":{"http":"Install the WAS (Web AIM Sniff) frontend"},"argus-clients":{"ft":"Enable support for flow packets through net-analyzer/flow-tools"},"barnyard":{"sguil":"Enable sguil (The Analyst Console for Network Security Monitoring) support"},"barnyard2":{"aruba":"Enable Aruba support","gre":"Enable GRE support","mpls":"Enable support for mpls networks"},"bwm-ng":{"csv":"Enable csv output","html":"Enable html output"},"cacti":{"doc":"install html documentation"},"check_mk":{"agent-only":"Install only the check_mk agent.","apache_status":"Install check_mk-agent apache-status plugin.","dmi_sysinfo":"Install check_mk-agent dmi_sysinfo plugin.","livestatus":"Enable livestatus.","logwatch":"Install check_mk-agent logwatch plugin.","mysql":"Install check_mk-agent mysql plugin.","nfsexports":"Install check_mk-agent nfsexports plugin.","postgres":"Install check_mk-agent postgres plugin.","smart":"Install check_mk-agent S.M.A.R.T plugin.","wato":"Enable check_mk WATO - check_mk's Web Administration Tool.","zypper":"Install check_mk-agent zypper plugin."},"echoping":{"http":"enable support for http protocol.","icp":"enable support for ICP (used to monitor proxies).","priority":"enable socket priority support.","smtp":"enable support for SMTP protocol.","tos":"enable support for TOS (TYpe Of Service)."},"ettercap":{"plugins":"Install ettercap plugins (et_*.so)"},"flowgrind":{"pcap":"Enable packet capturing support using net-libs/libpcap"},"fprobe":{"messages":"enable console messages"},"gr-fosphor":{"glfw":"enable GLFW based interface"},"graphite-web":{"memcached":"Enable memcached support"},"httping":{"tfo":"Enable support for TCP Fast Open"},"hydra":{"ncp":"NCP protocol (NetWare) support through net-fs/ncpfs"},"icinga":{"contrib":"additional scripts","eventhandler":"Adds support for running custom scripts whenever a host or service state change occurs","idoutils":"Adds DB support","lighttpd":"Adds Lighttpd support","plugins":"Adds support for nagios plugins","web":"Adds generic web interface support"},"icinga-web":{"pnp":"Enables pnp4nagios integration"},"icinga2":{"classicui":"Adds support for the old interface","nano-syntax":"Adds support for syntax used in the nano editor","plugins":"Adds support for nagios plugins"},"linkchecker":{"bookmarks":"Mozilla Bookmark parsing","login":"login form submission","nagios":"Install nagios cli plugin","sqlite":"Mozilla Bookmark parsing","syntax-check":"HTML/CSS syntax checks"},"metasploit":{"development":"Install dependencies needed for metasploit and exploit development","lorcon":"Enable lorcon for raw packet injection","oracle":"Enable restricted oracle modules which have additional deps","pcap":"Enable libpcap for packet sniffing"},"monitoring-plugins":{"dns":"Install net-dns/bind-tools required for monitoring DNS servers. Disabling the flag does not remove any plugins.","fping":"Install net-analyzer/fping required for fancy ping monitoring. Disabling the flag does not remove any plugins.","game":"Install games-util/qstat required for monitoring FPS servers. Disabling the flag does not remove any plugins.","snmp":"Install dev-perl/Net-SNMP and net-analyzer/net-snmp required for monitoring SNMP values. Disabling the flag does not remove any plugins.","ssh":"Install net-misc/openssh required for monitoring SSH servers. Disabling the flag does not remove any plugins."},"munin":{"apache":"Set up the configuration of the CGI generation of HTML and graphs to work with Apache. This also install an include-able configuration file.","asterisk":"Install the packages required for monitoring Asterisk. Disabling the flag does not remove any plugin files.","cgi":"Install the CGI-compatible scripts for on-the-fly generation of web pages and graphs. This is only meaningful if the minimal USE flag is disabled.","dhcpd":"Install dev-perl/Net-IP, dev-perl/HTTP-Date and net-misc/dhcp to monitor DHCP lease usage. This only works if the server is on the same system as the node, so the server is also brought in. Disabling the flag does not remove any plugin file.","doc":"Build and install a local copy of the HTML documentation for the whole software. This requires dev-python/sphinx to process the documentation sources.","http":"Install dev-perl/libwww-perl required for monitoring HTTP-based services such as Apache and nginx. Disabling the flag does not remove any plugin file.","ipmi":"Install sys-apps/ipmitool required for monitoring IPMI sensors. Disabling the flag does not remove any plugin file.","ipv6":"Add support for IPv6 in munin-node. IPv6 support for the master is always enabled, but the node requires a newer version of dev-perl/net-server, capable of listening to IPv6 sockets.","irc":"Install the packages required for monitoring IRC. Disabling the flag does not remove any plugin files.","java":"Build the Java-based plugins to monitor JMX-compatible applications. Disabling the flag removes the jmx monitoring plugins.","memcached":"Install the packages required for memcached monitoring. Disabling the flag does not remove any plugin files.","minimal":"Only install munin-node and its plugins. This excludes the scripts to generate the web pages and the graphs.","mysql":"Install the packages required for monitoring MySQL. Disabling the flag does not remove any plugin files.","postgres":"Install the packages required for monitoring PostgreSQL. Disabling the flag does not remove any plugin files.","syslog":"Configure the node by default to log on syslog. This requires the presence of virtual/perl-Sys-Syslog. As of version 2.0.2, the master scripts only log to file, and not to syslog."},"nagios-core":{"classicui":"use the classic web theme","lighttpd":"install www-servers/lighttpd config","web":"enable web interface"},"nagios-plugins":{"jabber":"Install the script for sending IM notifications over Jabber with Nagios.","nagios-dns":"Install net-dns/bind-tools required for monitoring DNS servers. Disabling the flag does not remove any plugin file.","nagios-game":"Install games-util/qstat required for monitoring FPS servers. Disabling the flag does not remove any plugin file.","nagios-ntp":"Install net-misc/ntp required for monitoring NTP servers and drifts. Disabling the flag does not remove any plugin file.","nagios-ping":"Install net-analyzer/fping required for fancy ping monitoring. Disabling the flag does not remove any plugin file.","nagios-ssh":"Install net-misc/openssh required for monitoring SSH servers. Disabling the flag does not remove any plugin file.","smart":"Install sys-apps/smartmontools required for S.M.A.R.T. disk monitoring. Disabling the flag removes the plugin file. This plugin also requires the sudo flag to be enable.","snmp":"Install dev-perl/Net-SNMP required for monitoring SNMP values. Disabling the flag does not remove any plugin file.","ssh":"Install net-misc/openssh required for monitoring SSH servers. Disabling the flag does not remove any plugin file.","sudo":"Install a file to allow the nagios user to execute some commands via app-admin/sudo, so that the scripts can access devices and features that wouldn't be otherwise allowed by nagios.","suid":"Give root privileges to the ICMP, DHCP and IDE S.M.A.R.T. check binaries. This allows them to ignore the access controls that would disallow the nagios user from running the check.","ups":"Install sys-power/nut required for monitoring compatible UPS units. Disabling the flag does not remove any plugin file."},"nagios-plugins-flameeyes":{"smart":"Install sys-apps/smartmontools required for S.M.A.R.T. disk monitoring. Disabling the flag removes the plugin file. This plugin also requires the sudo flag to be enable."},"nagvis":{"automap":"Enable automated map generation using media-gfx/graphviz"},"ncrack":{"ssh":"Compile and link against the internal openssh modified library."},"net-snmp":{"elf":"Enable the use of elf utils to check uptime on some systems","mfd-rewrites":"Use MFD rewrites of mib modules where available","netlink":"Use dev-libs/libnl to fetch TCP statistics instead of using /proc/net/tcp (Linux only).","pci":"Use libpci (from sys-apps/pciutils) to look up network interface description. This feature is only available on Linux.","rpm":"Enable monitoring of app-arch/rpm. This flag requires the bzip2 and zlib flags to be enabled as well.","ucd-compat":"Build UCD compatibility library. Increases significantly the install size."},"netperf":{"demo":"Emit interim results during the run. May affect results","sctp":"Include tests to measure SCTP performance"},"nfdump":{"compat15":"Enable read support for nfdump data files created with nfdump 1.5.x","ftconv":"Build the flow-tools to nfdump converter","nfprofile":"Build nfprofile used by NfSen","nftrack":"Build nfprofile used by PortTracker","readpcap":"Build nfcapd collector to read from pcap file instead ofnetwork data","sflow":"Build sflow collector sfcpad"},"nmap":{"lua":"Include support for the Nmap Scripting Engine (NSE)","ncat":"Install the ncat utility","ndiff":"Install the ndiff utility","nmap-update":"Install nmap-update, which uses dev-vcs/subversion to update nmap scripts in your home directory","nping":"Install the nping utility","system-lua":"Use dev-lang/lua instead of the bundled liblua","zenmap":"Install the GTK+ based nmap GUI, zenmap"},"nrpe":{"command-args":"Build support for specifying the command-line arguments from the Nagios/Icinga master. Make sure you understand the implications of this flag as it can be a security risk.","minimal":"Only build the check plugins for Nagios/Icinga, and not the daemon."},"nsca":{"crypt":"Build support for crypted communication with nsca, through dev-libs/mcrypt. It's recommended not to disable this flag unless all the communication will be handled in an absolutely safe environment.","minimal":"Only build and install the send_nsca command and not the daemon. This allows a very minimal install with no overhead when setting up a node."},"openvas":{"pdf":"Enable pdf report creation"},"pchar":{"pcap":"Use the net-libs/libpcap library"},"pinger":{"gtk2":"Install the gtkpinger GUI utility based on x11-libs/gtk:2","gtk3":"Install the gtkpinger GUI utility based on x11-libs/gtk:3"},"pmacct":{"64bit":"Use 64bit counters instead of 32bit ones","mongodb":"Add support for mongodb backend","ulog":"Enable ULOG support"},"rrdcollect":{"exec":"Enable exec:/// support","librrd":"Use the librrd library from net-analyzer/rrdtool"},"rrdtool":{"graph":"Enable support for graphing functions","rrdcgi":"Build rrdcgi support"},"sancp":{"sguil":"Enable sguil (The Analyst Console for Network Security Monitoring) support"},"sarg":{"gd":"Enable support for graphs in reports through media-libs/gd","pcre":"Enable support for regular expressions in the hostalias file through dev-libs/libpcre"},"scanlogd":{"nids":"Use net-libs/libnids for packet capturing","pcap":"Use net-libs/libpcap for packet capturing"},"scapy":{"pyx":"Enable dev-python/pyx support for psdump/pdfdump commands","tcpreplay":"Enable net-analyzer/tcpreply support for fast packet replay","visual":"Enable dev-python/visual support for 3d graphs"},"smokeping":{"dig":"Install net-dns/bind-tools for dig functionality","echoping":"Install net-analyzer/echoping for echoping functionality","ssh":"Install ssh functionality","telnet":"Install dev-perl/Net-Telnet for telnet functionality"},"snort":{"active-response":"Enables support for automatically sending TCP resets and ICMP unreachable messages to terminate connections. Used with inline deployments.","control-socket":"Enables Snort's control socket.","dynamicplugin":"Enable ability to dynamically load preprocessors, detection engine, and rules library. This is required if you want to use shared object (SO) snort rules.","file-inspect":"Enables extended file inspection capabilities.","flexresp3":"Enables support for new flexable response preprocessor for enabling connection tearing for inline deployments. Replaces flexresp and flexresp2.","gre":"Enable support for inspecting and processing Generic Routing Encapsulation (GRE) packet headders. Only needed if you are monitoring GRE tunnels.","high-availability":"Enables high-availability state sharing.","inline-init-failopen":"Enables support to allow traffic to pass (fail-open) through inline deployments while snort is starting and not ready to begin inspecting traffic. If this option is not enabled, network traffic will not pass (fail-closed) until snort has fully started and is ready to perform packet inspection.","large-pcap-64bit":"Allows Snort to read pcap files that are larger than 2 GB. ONLY VALID FOR 64bit SYSTEMS!","linux-smp-stats":"Enable accurate statistics reporting through /proc on systems with multipule processors.","mpls":"Enables support for processing and inspecting Multiprotocol Label Switching MPLS network network traffic. Only needed if you are monitoring an MPLS network.","non-ether-decoders":"Enable decoding of non-ethernet protocols such as TokenRing, FDDI, IPX, etc.","normalizer":"Enables support for normalizing packets in inline deployments to help minimize the chances of detection evasion.","paf":"Enables support for Protocol Aware Flushing. This allows Snort to statefully scan a stream and reassemble a complete protocol data unit regardless of segmentation.","perfprofiling":"Enables support for preprocessor and rule performance profiling using the perfmonitor preprocessor.","ppm":"Enables support for setting per rule or per packet latency limits. Helps protect against introducing network latency with inline deployments.","react":"Enables support for the react rule keyword. Supports interception, termination, and redirection of HTTP connections.","reload-error-restart":"Enables support for completely restarting snort if an error is detected durring a reload.","shared-rep":"Enables the use of shared memory for the Reputation Preprocessor (Only available on Linux systems)","side-channel":"Enables Snort's the side channel.","sourcefire":"Enables Sourcefire specific build options, which include --enable-perfprofiling and --enable-ppm.","targetbased":"Enables support in snort for using a host attibute XML file (attribute_table.dtd). This file needs to be created by the user and should define the IP address, operating system, and services for all hosts on the monitored network. This is cumbersome, but can improve intrusion detection accuracy.","zlib":"Enables HTTP inspection of compressed web traffic. Requires dynamicplugin be enabled."},"symon":{"perl":"Enables a generic perl symux client","symon":"Enables the system monitor. Offers no functionality but monitoring and forwarding of measured data","symux":"Enables the multiplexer which stores incoming symon streams on disk in RRD (net-analyzer/rrdtool) files"},"tcpdump":{"drop-root":"Drop privileges to tcpdump:tcpdump when run as root","smi":"Build with net-libs/libsmi to load MIBs on the fly to decode SNMP packets"},"tcpflow":{"pcap":"Use net-libs/libpcap for packet capturing"},"tcpreplay":{"pcapnav":"Enable if you want the jump to byte offset feature via net-libs/libpcapnav","tcpdump":"Use net-analyzer/tcpdump for packet decoding feature"},"wireshark":{"adns":"Use the GNU net-dns/c-ares library to resolve DNS names","crypt":"Use dev-libs/libgcrypt to decrypt traffic","doc-pdf":"Build documentation in pdf format (US and a4 paper sizes)","gtk3":"Build the wireshark executable with a GTK+ UI version 3.","netlink":"Use dev-libs/libnl","pcap":"Use net-libs/libpcap for network packet capturing (build dumpcap, rawshark)","qt4":"Build the wireshark executable with an experimental Qt UI instead of GTK+.","sbc":"Use media-libs/sbc for playing back SBC encoded packets","smi":"Use net-libs/libsmi to resolve numeric OIDs into human readable format"},"zabbix":{"agent":"Enable zabbix agent (for to-be-monitored machines)","frontend":"Enable zabbix web frontend","ipv6":"Turn on support of IPv6","java":"Enable Zabbix Java JMX Management Gateway","libxml2":"Use libxml2 client library","odbc":"Enable Database Monitor and use UnixODBC Library by default","openipmi":"Enable openipmi things","proxy":"Enable proxy support","server":"Enable zabbix server","ssh":"SSH v2 based checks","static":"Build statically linked binaries"},"zmap":{"json":"Add support to store results JSON based","redis":"Add support for storing in a redis DB via dev-libs/hiredis"}},"net-dialup":{"accel-ppp":{"shaper":"Support for traffic shaping","valgrind":"Compile in valgrind hints"},"capi4k-utils":{"fax":"Install capi-fax demo programs","pppd":"Installs pppdcapiplugin modules","rcapid":"Installs rcapid daemon"},"freeradius":{"pcap":"Build the RADIUS sniffer which requires net-libs/libpcap."},"freeradius-client":{"scp":"Add service type hints derived from username prefix","shadow":"Enable shadow password support"},"mgetty":{"fax":"Enables fax support","fidonet":"Enables FidoNet support"},"ppp":{"activefilter":"Enables active filter support","atm":"Enables ATM (Asynchronous Transfer Mode) protocol support","dhcp":"Installs PPP DHCP client plugin for IP address allocation by a DHCP server (see http://www.netservers.co.uk/gpl/)","eap-tls":"Enables support for Extensible Authentication Protocol and Transport Level Security (see http://www.nikhef.nl/~janjust/ppp/index.html)","gtk":"Installs GTK+ password prompting program that can be used by passprompt.so PPP plugin for reading the password from a X11 input terminal","ipv6":"Enables support for IP version 6","mppe-mppc":"Enables support for MPPC (Microsoft Point-to-Point Compression) - NEEDS A PATCHED KERNEL <=2.6.14 (see http://mppe-mppc.alphacron.de)","pam":"Enables PAM (Pluggable Authentication Modules) support","radius":"Enables RADIUS support"},"pptpd":{"gre-extreme-debug":"Log all GRE accepted packages when in debug mode (required if you want upstream support)"},"xl2tpd":{"dnsretry":"Patch for host lookup retries, activated by redial feature","kernel":"Enable kernel interface for PPPoL2TP"}},"net-dns":{"avahi":{"autoipd":"Build and install the IPv4LL (RFC3927) network address configuration daemon","bookmarks":"Install the avahi-bookmarks application (requires dev-python/twisted)","gtk3":"Build the avahi-ui-gtk3 library, and use gtk3 for the avahi utilities under USE=utils","howl-compat":"Enable compat libraries for howl","introspection":"Use dev-libs/gobject-introspection for introspection","mdnsresponder-compat":"Enable compat libraries for mDNSResponder","utils":"Install the avahi gtk+ utils avahi-discover, bssh, and bvnc"},"bind":{"dlz":"Enables dynamic loaded zones, 3rd party extension","filter-aaaa":"Enable filtering of AAAA records over IPv4","fixed-rrset":"Enables fixed rrset-order option","gost":"Enables gost OpenSSL engine support","gssapi":"Enable gssapi support","json":"Enable JSON statistics channel","nslint":"Build and install the nslint util","rpz":"Enable response policy rewriting (rpz)","rrl":"Response Rate Limiting (RRL) - Experimental","sdb-ldap":"Enables ldap-sdb backend","urandom":"Use /dev/urandom instead of /dev/random"},"bind-tools":{"gost":"Enables gost OpenSSL engine support","gssapi":"Enable gssapi support","urandom":"Use /dev/urandom instead of /dev/random"},"ddclient":{"hardened":"Use iproute2 instead of ifconfig to grab an IP address","ssl":"Connect to the server utilizing SSL"},"dnscrypt-proxy":{"ldns":"Use net-libs/ldns for DNSSEC/SSHFP validation","plugins":"Enable plugin support to inspect and modify queries and responses","systemd":"Use systemd's socket activation instead of creating the sockets itself"},"dnsmasq":{"auth-dns":"Add support for acting as an authorative DNS server.","conntrack":"Add support for Linux conntrack connection marking.","dhcp":"Enable support for acting as a DHCP server.","dhcp-tools":"Install extra command line tools for manually managing DHCP leases.","dnssec":"Enable support DNSSEC validation and caching.","script":"Enable support for calling scripts when leases change.","tftp":"Enables built in TFTP server for netbooting."},"hash-slinger":{"ipsec":"Enable support for IPSECKEY records (ipseckey)","openpgp":"Enable support for OPENPGPKEY records (openpgpkey)","ssh":"Enable support for SSHFP records (sshfp)"},"knot":{"fastparser":"Enables fast DNS zone parser."},"ldns-utils":{"dane":"Enable DNS-based Authentication of Named Entities (DANE) support","ecdsa":"Enable ECDSA support","gost":"Enable GOST support"},"maradns":{"authonly":"Allows one to build only authoritative DNS server"},"mydns":{"alias":"Enable David Phillips aliasing","status":"Enable the STATUS opcode to check server status"},"nsd":{"bind8-stats":"Enables BIND8 like NSTATS and XSTATS","libevent":"Use libevent or libev, useful when zone count is high","minimal-responses":"If minimal responses are disabled, responses are more likely to get truncated, resulting in TCP fallback","munin":"Install a plugin for net-analyzer/munin to graph statistical data from nsd.","nsec3":"Enable NSEC3 support","ratelimit":"Enables ratelimiting, based on query name, type and source","root-server":"Configure NSD as a root server","runtime-checks":"Enable runtime checks, this could lead to a reduced service level","zone-stats":"Enable per-zone statistics logging, this could lead to a reduced service level"},"opendnssec":{"auditor":"Enables auditing capabilities for OpenDNSSEC","eppclient":"Enables support for automatic submission of DNSSEC keys to an upstream epp server","external-hsm":"Enables support for storing DNSSEC keys through an arbitrary non-portage PKCS#11 interface, specified through an environment variable","opensc":"Enables support for storing DNSSEC keys through a dev-libs/opensc PKCS#11 interface","signer":"Enables signing capabilities for OpenDNSSEC","softhsm":"Enables support for storing DNSSEC keys in a dev-libs/softhsm PKCS#11 object"},"pdns":{"botan":"Make it possible to use the dev-libs/botan library for crypto-related stuff (like DNSSec) which can be significantly faster than PolarSSL.","cryptopp":"Make it possible to use the dev-libs/crypto++ library for crypto-related stuff (like DNSSec) which can be significantly faster than PolarSSL.","mydns":"Making it possible to use a MyDNS MySQL database with PowerDNS (not recommended for new deployments).","opendbx":"Use a database supported by dev-db/opendbx as backend.","remote":"Use a generic socket or pipe as a backend (via JSON RPC requests).","remote-http":"Enable remote connections to HTTP as backends (via RESTful JSON requests).","tinydns":"Use a TinyDNS CDB database as backend.","tools":"Build optional tools (dnsscan, dnsscope, etc..)."},"pdnsd":{"isdn":"Linux-only: check status of ippp interfaces with ISDN-specific system calls.","urandom":"Linux-only: use /dev/urandom (pseudo-random number generation) instead of the default use of random() PRNG."},"resolvconf-symlink":{"symlink":"Actually replace /etc/resolv.conf with a symlink. Without this flag, the ebuild is a no-op."},"unbound":{"dnstap":"Enable dnstap support","ecdsa":"Enable ECDSA support","gost":"Enable GOST support"}},"net-firewall":{"arno-iptables-firewall":{"plugins":"Install optional plugins"},"firewalld":{"gui":"Builds and installs GUI configurator and GTK+ applet"},"fwknop":{"client":"Build fwknop client","extras":"Install example apparmor policy","gdbm":"Replace file digest-cache with gdbm","gpg":"Enable GPG support via app-crypt/gpgme","server":"Build fwknopd server"},"ipsec-tools":{"hybrid":"Makes available both mode-cfg and xauth support","idea":"Enable support for the IDEA algorithm","nat":"Enable NAT-Traversal","rc5":"Enable support for the patented RC5 algorithm","stats":"Enable statistics reporting"},"ipt_netflow":{"pax_kernel":"Apply patch needed for pax enabled kernels"},"iptables":{"netlink":"Build against libnfnetlink which enables the nfnl_osf util"},"nufw":{"nfconntrack":"Use netfilter_conntrack","nfqueue":"Use NFQUEUE instead of QUEUE","pam_nuauth":"Add support for pam nufw from PAM","plaintext":"Add support for authentication with plaintext files"},"pftop":{"altq":"Enable altq(4) support — alternate queuing of network packets."},"pglinux":{"cron":"Install cron script","logrotate":"Install logrotate.d file"},"shorewall":{"init":"Adds the capability to place the firewall in a safe state prior to bringing up the network interfaces","ipv4":"Installs everything needed to create a full IPv4 firewall","ipv6":"Adds the capability to create a full IPv6 firewall (requires net-firewall/shorewall[ipv4])","lite4":"Installs everything needed to just *run* an IPv4 compiled firewall script created with net-firewall/shorewall[ipv4]","lite6":"Installs everything needed to just *run* an IPv6 compiled firewall script created with net-firewall/shorewall[ipv6]"},"ufw-frontends":{"kde":"Use kdesu to gain root privileges (note: the flag has lower priority than \"policykit\")","policykit":"Use pkexec to gain root privileges"}},"net-fs":{"autofs":{"dmalloc":"Enable debugging with the dmalloc library","hesiod":"Install hesiod module","ldap":"Install LDAP module","libtirpc":"Use TiRPC library instead of SunRPC","mount-locking":"Enable locking to prevent corruption of /etc/mtab in the presence of concurrent auto-mounting. If enabled, recursive auto-mounting (eg. using autofs to bind or loop mount a filesystem which is itself auto-mounted) is not possible.","sasl":"Enable SASL support in the LDAP module"},"cifs-utils":{"ads":"Enable Active Directory support and create cifs.idmap binary - idmap support","caps":"libcap support","caps-ng":"libcap-ng support","creds":"cifs credentials support"},"cvmfs":{"client":"Install the cvmfs client programs and init script","server":"Install the cvmfsd program and init script"},"netatalk":{"appletalk":"Build support for Apple's AppleTalk (DDP) protocol and its utilities (atalkd, timelord, papd).","cups":"Add support for net-print/cups printers in papd. This flag is only considered if appletalk USE flag is enabled, and is otherwise ignored.","pgp":"Add support pgp authentication module","quota":"Add support for user quota on various filesystems.","shadow":"Add shadow support","ssl":"Use dev-libs/openssl to provide DHX User Access Modules. These are not used with most recent versions of OS X and can be kept disabled without risks.","tracker":"Add support for spotlight like tracker","utils":"Install afpstats script"},"nfs-utils":{"libmount":"Link mount.nfs with libmount","nfsdcld":"Enable nfsdcld NFSv4 clientid tracking daemon","nfsidmap":"Enable support for newer nfsidmap helper","nfsv4":"Enable support for NFSv4","nfsv41":"Enable support for NFSv4.1","uuid":"Support UUID lookups in rpc.mountd"},"samba":{"addns":"Enable AD DNS integration","ads":"Enable Active Directory support","aio":"Enable asynchronous IO support","client":"Enables the client part","cluster":"Enable support for clustering","dmapi":"Enable support for DMAPI. This currently works only in combination with XFS.","iprint":"Enabling iPrint technology by Novell","ldb":"Enable the ldb tools","netapi":"Enable building of netapi bits","quota":"Enables support for user quotas","server":"Enables the server part","smbclient":"Enable smbclient tool","smbsharemodes":"Enable special smb share modes (?)","smbtav2":"Enable Samba Traffic Analyzer version 2","swat":"Enables support for swat configuration gui","winbind":"Enables support for the winbind auth daemon"},"smbnetfs":{"gnome":"Use the gnome-base/gnome-keyring for password management."}},"net-ftp":{"frox":{"transparent":"Enable transparent proxying of data connections"},"lftp":{"convert-mozilla-cookies":"Install the convert-mozilla-cookies script and its run-time dependencies","openssl":"Use dev-libs/openssl for SSL connections","verify-file":"Install the verify-file script and its run-time dependencies"},"proftpd":{"authfile":"Enable support for the auth-file module","ban":"Enable support for the mod_ban module","case":"Enable support for the mod_case module","copy":"Enable support for the mod_copy module","ctrls":"Enable support for the mod_ctrls and mod_ctrls_admin modules","deflate":"Enable support for the mod_deflate module","diskuse":"Enable support for the mod_diskuse module","dso":"Enable support for the mod_dso module","dynmasq":"Enable support for the mod_dynmasq module, for dynamically updating MasqueradeAddress for dyndns-like scenarios)","exec":"Enable support for the mod_exec module. WARNING: this could be a security risk","ident":"Enable support for the mod_ident module","ifsession":"Enable support for the ifsession module","ifversion":"Enable support for the mod_ifversion module","linguas_bg_BG":"Language support for bg_BG","linguas_fr_FR":"Language support for fr_FR","linguas_it_IT":"Language support for it_IT","linguas_ja_JP":"Language support for ja_JP","linguas_ru_RU":"Language support for ru_RU","log_forensic":"Enable support for the mod_log_forensic module, log only suspicious actions.","memcache":"Enable support for the mod_memcache module, for using memcached servers","msg":"Enable support for the mod_msg module, allows system users to send messages to connected clients via the ftpdctl program.","openssl":"Enable dev-libs/openssl support","qos":"Enable support for the mod_qos module","ratio":"Enable support for the mod_ratio module","readme":"Enable support for the mod_readme module","rewrite":"Enable support for the rewrite module","sftp":"Enable support for the mod_sftp module and optionally mod_sftp_sql and mod_sftp_pam if matching USE flags are enabled","shaper":"Enable support for the mod_shaper module","sitemisc":"Enable support for the sitemisc module","softquota":"Enable support for the quotatab module","trace":"Build with trace support. Should not be enabled on production servers","unique_id":"Enable support for the mod_unique_id module, every connection gets unique ID.","vroot":"Enable support for the virtual root module"},"pure-ftpd":{"anondel":"Permit anonymous to delete files","anonperm":"Permit anonymous to change file permissions","anonren":"Permit anonymous to rename files","anonres":"Permit anonymous to resume file transfers","charconv":"Enables charset conversion","implicittls":"Enable TLS on Port 990","noiplog":"Disables logging of IP addresses","paranoidmsg":"Display paranoid messages instead of normal ones","resolveids":"Resolve UIDs/GIDs","sysquota":"Enables system quota support (needs sys-fs/quota)","vchroot":"Enable support for virtual chroot (possible security risk)"},"yafc":{"ssh":"Build with SFTP support"}},"net-im":{"ayttm":{"irc":"Enable Internet Relay Chat support","lj":"Enable livejournal.com support","smtp":"Adds support for sending messages via RFC2821 SMTP","webcam":"Adds webcam support for Yahoo Messenger"},"bitlbee":{"libevent":"Use libevent for event handling","nss":"Use NSS for SSL support in MSN and Jabber","otr":"Enable support for encrypted conversations","plugins":"Enable support for plugins","purple":"Use libpurple instead of the built-in IM protocol support","skype":"Enable Skype support","twitter":"Enable Twitter protocol support"},"centerim":{"gadu":"Enable support for the Gadu-Gadu protocol","irc":"Enable support for the IRC protocol","lj":"Enable support for the LiveJournal weblog system","otr":"Enable encrypted conversations"},"choqok":{"telepathy":"Enable support for the real-time communication framework telepathy"},"climm":{"otr":"Enable encrypted conversations"},"corebird":{"glade":"Install glade catalogs for corebird"},"ejabberd":{"captcha":"Support for CAPTCHA Forms (XEP-158)","mod_irc":"Build irc gateway","mod_muc":"Build Multi User Chat module","mod_proxy65":"Support for SOCKS5 Bytestreams (XEP-0065)","mod_pubsub":"Build Pubsub module","mod_statsdx":"Measures several statistics, and provides a new section in ejabberd Web Admin to view them.","web":"Enable web admin interface"},"ekg2":{"gadu":"Enable Gadu-Gadu protocol support (requires net-libs/libgadu).","gif":"GIF token support for Gadu-Gadu protocol.","gnutls":"Enable SSL/TLS support through GnuTLS for the plugins supporting it. If 'ssl' is enabled too, GnuTLS will be preferred where possible (and OpenSSL will be used elsewhere).","gpg":"Enable jabber message encryption through app-crypt/gpgme.","jpeg":"JPEG token support for Gadu-Gadu protocol.","minimal":"Disable building extra plugins with no additional deps.","openssl":"Support encryption in sim plugin, using OpenSSL.","oracle":"Support logging messages into Oracle database.","sqlite":"Support logging messages into SQLite2 database. If 'sqlite3' is set too, it will be used instead.","sqlite2":"Prefer SQLite2 over SQLite3 (if USE=sqlite is set).","sqlite3":"Support logging messages into SQLite3 database. If 'sqlite' is set too, SQLite3 will be used.","ssl":"Enable the complete SSL/TLS support through OpenSSL. This also enables the 'sim' plugin which relies on OpenSSL."},"empathy":{"geoloc":"Enable geolocation support through app-misc/geoclue","gnome-online-accounts":"Enable using net-libs/gnome-online-accounts for authorization (e.g. for Google Talk)","map":"Enable world map support through media-libs/libchamplain"},"err":{"irc":"Pull optional dependencies, needed for IRC backend","plugins":"Enable support for installing plugins with dev-vcs/git"},"gajim":{"idle":"Enable idle module","srv":"SRV capabilities","xhtml":"Enable XHTML support"},"jabberd2":{"experimental":"Enable experimental features such as TLS Everywhere.","memdebug":"Enable nad and pool debug. Requires USE=\"debug\" to be set."},"kadu":{"gadu":"Enables Gadu communication protocol","mpd":"Enables Music Player Daemon support","phonon":"Enables phonon audio plugin","sdk":"Install Kadu SDK (cmake module, API headers)","speech":"Enables speech module"},"ktp-accounts-kcm":{"modemmanager":"Enable support for mobile broadband devices"},"ktp-common-internals":{"otr":"Enable support for encrypted conversations using Off-The-Records messaging"},"licq":{"aosd":"Build the advanced on screen display plugin."},"mcabber":{"aspell":"Adds support for app-text/aspell spell checker.","otr":"Enable encrypted conversations using Off-The-Records messaging"},"pidgin":{"gadu":"Enable Gadu Gadu protocol support","groupwise":"Enable Novell Groupwise protocol support","gstreamer":"Enables voice and video sessions","gtk":"Builds Pidgin, the GTK+ interface","meanwhile":"Enable meanwhile support for Sametime protocol","mxit":"Enable mxit protocol support","ncurses":"Build finch, console interface","prediction":"Enable Contact Availability Prediction plugin","python":"Build libgnt (GLib Ncurses Toolkit used by finch) with python scripting support","silc":"Enable SILC protocol support","xscreensaver":"Use X screensaver protocol extension to monitor idle/active status based on mouse/keyboard events","zephyr":"Enable Zephyr protocol support"},"prosody":{"jit":"Use LuaJIT instead of vanilla Lua","libevent":"Use libevent for event handling","zlib":"Support for compressing XMPP streams with mod_compression"},"psi":{"enchant":"Use enchant spell engine instead of aspell","extras":"Enables extra non official patches","iconsets":"Install additional iconsets, some of them has not clear licensing","plugins":"Enable plugins support","powersave":"Disable some non critical timers for much less CPU usage","webkit":"Enable chatlog rendering using webkit","whiteboarding":"Enable experimental interactive SVG drawing","xscreensaver":"Use X screensaver protocol extension to monitor idle/active status based on mouse/keyboard events"},"psimedia":{"demo":"build simple test application for the PsiMedia system"},"pyaim-t":{"webinterface":"Install dependencies needed for the web interface"},"pyicq-t":{"webinterface":"Install dependencies needed for the web interface"},"qutim":{"antiboss":"Enable support for the antiboss plugin","aspell":"Enable spellchecking using app-text/aspell","awn":"Enable integration with gnome-extra/avant-window-navigator","crypt":"Enable AES crypto plugin","espionage":"!!Not recomended, contains privacy risk!! Enable control plugin that controls user by sending messages and roster to remote server","histman":"Enable history importer plugin","hunspell":"Enable spellchecking using app-text/hunspell","irc":"Enable IRC protocol support","kinetic":"Enable Growl-like kinetic popups plugin","mobility":"Enable several mobility related plugins like vibro notification","mrim":"Enable mail.ru protocol support","multimedia":"Add sound support via dev-qt/qtmultimedia","otr":"Enable plugin for encrypted conversations (Off-The-Record messaging)","phonon":"Add sound support via media-libs/phonon or dev-qt/qtphonon","plugman":"Enable downloadable content management with dev-libs/libattica","purple":"Enable libpurple-based protocol support","qml":"Enable QtQuick-based chat plugin","sdl":"Add sound support via media-libs/sdl-mixer","telepathy":"Enable to connect various IMs through net-im/telepathy-*","tools":"Enable some extra tools for qt developers","vkontakte":"Enable vkontakte protocol support","webkit":"Enable Adium-like WebView plugin","xscreensaver":"Use X screensaver protocol extension to monitor idle/active status based on mouse/keyboard events"},"skype":{"apulse":"Use media-sound/apulse for PulseAudio emulation","pax_kernel":"Triggers a paxmarking of the main skype binary"},"telepathy-connection-managers":{"gadu":"Enable Gadu Gadu protocol support.","irc":"Enable Internet Relay Chat (IRC) support.","meanwhile":"Enable meanwhile support for Sametime protocol.","sip":"Enable SIP/SIMPLE messaging and calling.","sipe":"Enable Sip Exchange Protocol.","steam":"Enable Steam Chat support.","xmpp":"Enable XMPP protocol handler (this is also Google Talk).","yahoo":"Enable Yahoo! messaging support.","zeroconf":"Enable Link-Local Messaging via the zeroconf or Bonjour protocol."},"telepathy-mission-control":{"systemd":"Rely on systemd's logind to detect suspend and resume"},"tkabber":{"plugins":"Enables installation the extra plugins"},"vacuum":{"adiummessagestyle":"Use UI styles created for Adium","annotations":"Enable adding comments to the contacts in the roster","aspell":"Select app-text/aspell spell checker backend","autostatus":"Change the status in accordance with the time of inactivity","avatars":"Enable assigning and displaying avatars","birthdayreminder":"Reminds about birthdays of your friends","bitsofbinary":"Allow other modules to receive or send a small amount of binary data in XMPP stanza","bookmarks":"Enable creating bookmarks of the Jabber conferences and Web pages","captchaforms":"Perform tests for humanity outside of Web browser","chatstates":"Post user's activity to the chat","clientinfo":"Enable sending and receiving peer's application version, local time and last activity info","commands":"Enable performing special commands provided by various services","compress":"Compress stream of messages","console":"Enable inspecting a raw XML stream","dataforms":"Allow other modules to process and display data forms intended for the user","datastreamsmanager":"Enable initiating a custom data stream between two XMPP entities","emoticons":"Enable using smiley images in messages","enchant":"Select app-text/enchant spell checker backend","filemessagearchive":"Allows to save the history of conversations to local files","filestreamsmanager":"Enable transferring files between two XMPP entities","filetransfer":"Enable sending files to peers","gateways":"Simplify the interaction with gateways to other IM systems","hunspell":"Select app-text/hunspell spell checker backend","inbandstreams":"Enable initiating in-band data stream between two XMPP enitites","iqauth":"Enable logging on Jabber servers withous SASL authentication support","jabbersearch":"Enable searching contacts in Jabber networks","messagearchiver":"Enable saving the communication history both locally and on the server","messagecarbons":"Allows to keep all user IM clients engaged in a conversation","multiuserchat":"Enable Jabber multi-user conferences","pepmanager":"Allows other plugins to recieve and publish PEP events","privacylists":"Enable blocking the undesirable contacts","privatestorage":"Allow other modules to store arbitrary data on the server","recentcontacts":"Displays a recently used contacts","registration":"Enable creating accounts in Jabber services","remotecontrol":"Allows to remotely control the client","rosteritemexchange":"Allows to exchange contact list items","rostersearch":"Allows to search for contacts in the roster","servermessagearchive":"Allows to save the history of communications on the server","servicediscovery":"Enable receiving information about Jabber entities","sessionnegotiation":"Enable initiating the session between two entities with setting the rules for XMPP stanzas exchange","shortcutmanager":"Allows to setup user defined shortcuts","socksstreams":"Enable initiating SOCKS5 data streams between two XMPP entities","urlprocessor":"Allows other plugins to load data from custom types of URLs","vcard":"Enable obtaining peer's personal contact information","vcs-revision":"Add VCS revision to version number, INSECURE.","xmppuriqueries":"Allow other plugins to handle XMPP URI queries"}},"net-irc":{"atheme-services":{"cracklib":"Enable nickserv/cracklib module for enforcing strong account passwords","largenet":"Enable support/tweaks for large networks","ldap":"Enable ldap-backed authentication module","perl":"Install a perl module which wraps around the services' XML-RPC interface"},"bip":{"freenode":"Enables freenode-specific functionality. Currently that is only support for mute lists (MODE #channel +q).","noctcp":"Disable the automatic CTCP VERSION reply which is often exploited by malicious people to cause a DoS (reconnect due to flooding).","oidentd":"Enable oidentd support"},"charybdis":{"largenet":"Enable support/tweaks for large networks"},"epic5":{"archive":"Use app-arch/libarchive to use zip and tar archives from scripts.","valgrind":"Compile against dev-util/valgrind headers to improve memory-leak checking when running epic5 under valgrind."},"hexchat":{"libcanberra":"Enable sound event support using media-libs/libcanberra","libproxy":"Enable proxy support.","ntlm":"Enable NTLM authentication","plugin-checksum":"Build Checksum plugin (needs plugins)","plugin-doat":"Build Do At plugin (needs plugins)","plugin-fishlim":"Build FiSHLiM plugin (needs plugins )","plugin-sysinfo":"Build SysInfo plugin (needs plugins)","plugins":"Enable plugin support and installs some built-in plugins","theme-manager":"Build the theme manager (mono)"},"inspircd":{"geoip":"Add geoip support for country and city lookup based on IPs","gnutls":"Enable TLS support","ipv6":"Enable support for IP version 6","ldap":"Enable LDAP support","mysql":"Enable MySQL database backend","pcre":"Adds support for Perl Compatible Regular Expressions","posix":"Adds support for POSIX-compatible functions","postgres":"Enable PostgreSQL database backend","sqlite":"Enable Sqlite database backend","ssl":"Enable SSL support","tre":"Enable support for TRE, a lightweight, robust, and efficient POSIX compliant regexp matching library"},"iroffer-dinoex":{"admin":"Compile with HTTP Admin","blowfish":"Compile with blowfish encryption support","chroot":"Compile with chroot support","http":"Compile with HTTP server support","kqueue":"Compile with kqueue() support","memsave":"Compile with memory protection","telnet":"Compile with Telnet server support"},"irssi":{"proxy":"Adds support for a loadable IRC proxy module"},"kvirc":{"dcc_video":"Support video connections over DCC protocol","dcc_voice":"Support voice connections over DCC protocol","ipc":"Support inter-process communication between KVIrc processes","phonon":"Support Phonon for audio output","qt-dbus":"Support Qt-DBus","transparency":"Support pseudo-transparency"},"limnoria":{"crypt":"Enables user authentication with GPG"},"ngircd":{"ident":"Enables support for net-libs/libident"},"psybnc":{"multinetwork":"Adds support for multiple networks","oidentd":"Adds support for oidentd","scripting":"Adds scripting support"},"quassel":{"X":"Build the Qt 4 GUI client for quassel. If this USE flag is disabled, the GUI is not built, and cannot be used. You might want to disable this on the server, but you need it enabled on the client.","crypt":"Support core->network per-channel and per-query blowfish encryption via app-crypt/qca:2.","monolithic":"Build Standalone client with integrated core, no external quasselcore needed. Only useful if you don't want to use quassels client/server model. The server and X flags are not needed in this case but it is possible to enable them too.","phonon":"Build client with phonon backend support. This enables sound playback in client.","server":"Build the server binary. If this USE flag is disabled, the 'core' server binary for quassel is not built, and cannot be used. You need this enabled on the server, but you might want to disable it on the client.","webkit":"Use qt-webkit rendering engine for showing URL thumbnails and for other things that need web browser integration."},"rbot":{"aspell":"Use aspell instead of ispell in the \"spell\" plugin for rbot. The vanilla plugin uses ispell, but enabling this flag makes it use the ispell interface from aspell instead.","cal":"Add dependency over a package providing the /usr/bin/cal command, which is needed to enable the \"cal\" plugin for rbot. If the USE flag is disabled the plugin is also disabled by default.","dict":"Add dependency over dev-ruby/ruby-dict, which is needed to enable the \"dict\" plugin for rbot. If the USE flag is disabled the plugin is also disabled by default.","figlet":"Add dependency over app-misc/figlet, which is used by the \"figlet\" plugin for rbot. If the USE flag is disabled the plugin will be unable to use figlet; if toilet is also disabled, the plugin will be disabled.","fortune":"Add dependency over games-misc/fortune-mod, which is needed to enable the \"fortune\" plugin for rbot. If the USE flag is disabled the plugin is also disabled by default.","host":"Add dependency over net-dns/bind-tools (providing /usr/bin/host), which is needed to enable the \"host\" plugin for rbot. If the USE flag is disabled the plugin is also disabled by default.","nls":"Build and install translation for the messages coming from the bot and its plugins (through dev-ruby/ruby-gettext).","shorturl":"Add dependency over dev-ruby/shorturl, which is needed to enable the \"shortenurl\" plugin for rbot. If the USE flag is disabled the plugin is also disabled by default.","timezone":"Add dependency over dev-ruby/tzinfo to enable the \"time\" plugin for rbot. If the USE flag is disabled the plugin is also disabled by default.","toilet":"Add dependency over app-misc/toilet, which is used by the \"figlet\" plugin for rbot. If the USE flag is disabled the plugin will be unable to use toilet; if figlet is also disabled, the plugin will be disabled.","translator":"Add dependency over dev-ruby/mechanize, which is needed to enable the \"translator\" plugin for rbot. If the USE flag is disabled the plugin is also disabled by default."},"shadowircd":{"largenet":"Enable support/tweaks for large networks"},"srvx":{"bahamut":"Choose bahamut protocol over p10 protocol"},"supybot":{"twisted":"Allows supybot to use dev-python/twisted as driver"},"unrealircd":{"class-nofakelag":"Enable an unsupported class::options flag called “nofakelag” allowing you to grant fakelag exemption to normal user (instead of just opers).","extban-stacking":"Enable extended channel bans (such as +b ~c: and +b ~n:) to contain other extended bans instead of just hostmasks.","operoverride":"Enable OperOverride extension","operoverride-verify":"Enable requiring opers to invite themselves to +s/+p channels","prefixaq":"Enable chanadmin and chanowner prefixes","showlistmodes":"Support displaying channel modes in /list","shunnotices":"Enable notifying a user when un-shunned","spoof":"Enable the spoof protection","topicisnuhost":"Enable displaying nick!user@host as topic setter","usermod":"Enable /set* and /chg* commands"},"weechat":{"alias":"Enable plugin for alias control.","charset":"Enable encoding conversions.","exec":"Enable exec plugin.","fifo":"Enable FIFO support (sh pipes).","irc":"Enable IRC protocol support.","logger":"Enable support for logging.","relay":"Enable relay plugin (experimental)","rmodifier":"Enable rmodifier plugin.","scripts":"Build infrastructure for scripting.","trigger":"Enable trigger plugin.","xfer":"Enable xfer plugin support."},"znc":{"daemon":"Allow znc to run as a system-wide service. Installs an init script and creates a znc user:group."}},"net-libs":{"aqbanking":{"chipcard":"Enable support for DDV/RSA-chipcards","ebics":"Enable support for Electronic Banking Internet Communication Standard (EBICS)"},"axtls":{"cgi-lua":"Enables lua backed cgi for axhttpd server","cgi-php":"Enables php backed cgi for axhttpd server","httpd":"Enables axhttpd web server component","static":"Statically build axhttpd server"},"c-client":{"chappa":"Enable Eduardo Chappa's patches for use with mail-client/alpine (mainly adds support for maildir)","doc":"Install RFCs related to IMAP","topal":"Enable support for net-mail/topal for use with mail-client/alpine"},"courier-authlib":{"vpopmail":"Enable vpopmail support"},"cvm":{"vpopmail":"Enable vpopmail support"},"daq":{"afpacket":"Build the AFPacket data acquisition module. Functions similar to the PCAP module but with better performance. Snort can run unprivileged when using this module. AFpacket supports both inline and passive modes.","dump":"Build the Dump data acquisition module. The dump DAQ allows you to test the various inline mode features available in 2.9 Snort like injection and normalization.","ipq":"Build the IPQ data acquisition module. IPQ is the old way to process iptables packets for inline deployments. Snort can not run unprivileged when using this module.","nfq":"Build the NFQ data acquisition module. NFQ is the new way to process iptables packets for inline deployments. Snort can not run unprivileged when using this module.","pcap":"Build the PCAP data acquisition module."},"glib-networking":{"gnome":"Extract HTTP/HTTPS/SOCKS proxy configuration stored using GSettings","libproxy":"Use net-libs/libproxy for getting the HTTP/HTTPS/SOCKS proxy configuration"},"gnome-online-accounts":{"gnome":"Use gnome-base/gnome-control-center to set GNOME online accounts preferences"},"gnutls":{"bindist":"Disallow building LZO support, because of a license incompatibility with dev-libs/lzo.","crywrap":"Build the crywrap TLS proxy service","dane":"Build libgnutls-dane, implementing DNS-based Authentication of Named Entities. Requires net-dns/unbound.","nettle":"Use dev-libs/nettle as crypto backend","pkcs11":"Add support for PKCS#11 through app-crypt/p11-kit"},"gtk-vnc":{"gtk3":"Build the gtk3 gtk-vnc library and other gtk3 assets"},"h323plus":{"aec":"Enable acoustic echo cancellation","sound":"Enable audio codecs","video":"Enable video codecs"},"iax":{"snomhack":"Use slower memset for SNOM phoneem"},"iojs":{"npm":"Enable NPM package manager","snapshot":"Enable snapshot creation for faster startup"},"ldns":{"dane":"Enable DNS-based Authentication of Named Entities (DANE) support","ecdsa":"Enable ECDSA support","gost":"Enable GOST support"},"libbtbb":{"pcap":"Add support for network packet capture via net-libs/libpcap","wireshark-plugins":"Build the wireshark plugins for bluetooth baseband sniffing"},"libeXosip":{"srv":"enable support for SRV records DNS queries"},"libesmtp":{"ntlm":"Enable support for NTLM authentication"},"libetpan":{"liblockfile":"Enable support for liblockfile library"},"libgsasl":{"gcrypt":"Use dev-libs/libgcrypt for low-level crypto","ntlm":"Add support for Microsoft's NTLM mechanism using net-libs/libntlm"},"libinfinity":{"server":"Build and install the server binary including init.d/conf.d-scripts. Needed if you want to host an infinote server for gobby."},"libkolabxml":{"csharp":"Enable C# language bindings"},"libmicrohttpd":{"epoll":"use epoll() system call","messages":"enable error messages"},"libnftnl":{"json":"Supports parsing of JSON"},"libnids":{"glib":"Use dev-libs/glib for multiprocessing support","libnet":"Include code requiring net-libs/libnet"},"libnm-qt":{"modemmanager":"Enable support for mobile broadband devices"},"liboauth":{"bindist":"Alias for the nss USE flag, since there are license compliancy trouble when using OpenSSL.","curl":"If enabled, net-misc/curl is used thorugh the libcurl library; if it's not, the curl command is used instead. Some features are only available when using the library, but using it as library requires matching SSL implementations.","nss":"Use Mozilla NSS (dev-libs/nss) as hash library; if this is disabled, dev-libs/openssl is used instead."},"libosmocore":{"embedded":"Build for embedded use and disable unsupported features"},"libpcap":{"canusb":"Use virtual/libusb to support Controller Area Network over USB (CAN USB)","netlink":"Use dev-libs/libnl to put wireless interfaces in monitor mode."},"libprotoident":{"tools":"Build and install command-line tools"},"libproxy":{"gnome":"Enable support for reading proxy settings from GNOME","kde":"Enable support for reading proxy settings from KDE","spidermonkey":"Use libmozjs from dev-lang/spidermonkey for PAC parsing","webkit":"Use libjavascriptcoregtk from net-libs/webkit-gtk for PAC parsing"},"libsocialweb":{"connman":"Use net-misc/connman for getting network connection status information","gnome":"Extract proxy information using net-libs/libsoup"},"libsoup":{"samba":"Use net-fs/samba for NTLM Single Sign-On"},"libsrtp":{"aesicm":"Use AES ICM cryptographic algorithm","console":"Use /dev/console instead of stdout for error messages","syslog":"Use syslog for error messages"},"libssh":{"gcrypt":"Prefer dev-libs/libgcrypt over dev-libs/openssl for encryption","gssapi":"Enable gssapi support","pcap":"Build with PCAP output support","server":"Build with SSH server support","sftp":"Build with SFTP support","ssh1":"Build with SSH1 support"},"libssh2":{"gcrypt":"Use dev-libs/libgcrypt instead of dev-libs/openssl"},"libvncserver":{"24bpp":"enable 24bpp support","gcrypt":"enable support for gcrypt","no24bpp":"disable 24bpp support"},"loudmouth":{"asyncns":"Use libasyncns for asynchronous name resolution."},"neon":{"libproxy":"Add support for net-libs/libproxy","pkcs11":"Add support for PKCS#11 using dev-libs/pakchois"},"netembryo":{"sctp":"Support for Stream Control Transmission Protocol"},"nodejs":{"npm":"Enable NPM package manager","snapshot":"Enable snapshot creation for faster startup"},"opal":{"capi":"Enable CAPI support","celt":"Enable CELT ultra-low delay audio codec","dtmf":"Enable DTMF encoding/decoding support","fax":"Enable T.38 FAX protocol","h224":"Enable H.224 real time control protocol","h281":"Enable H.281 Far-End Camera Control protocol","h323":"Enable H.323 protocol","iax":"Enable Inter-Asterisk eXchange protocol","ilbc":"Enable iLBC (RFC 3951) speech codec","ivr":"Enable Interactive Voice Response","ixj":"Enable xJack cards support","lid":"Enable Line Interface Device","plugins":"Enable plugins support","sbc":"Enable the Bluetooth low-complexity, SubBand Codec","sip":"Enable Session Initiation Protocol","sipim":"Enable SIP Instant Messages session","srtp":"Enable Secure Real-time Transport Protocol","stats":"Enable statistic reporting","swig":"Use swig to generate bindings","video":"Enable video support","vpb":"Enable Voicetronics VPB card support","vxml":"Enable VXML support","wav":"Enable WAVFILE support","x264-static":"Install x264 plugin statically linked with x264"},"ortp":{"ntp-timestamp":"Turn on NTP timestamping on received packet","srtp":"Add support for Secure RTP","zrtp":"Add support for ZRTP key negotiation"},"phodav":{"spice":"Install the spice-webdavd guest agent"},"polarssl":{"havege":"Enable the HAVEGE random generator. Warning: the HAVEGE random generator is not suitable for virtualized environments","programs":"Build PolarSSL programs"},"ptlib":{"asn":"Enable ASN decoding/encoding support","dtmf":"Enable DTMF encoding/decoding support","http":"Enable HTTP support","mail":"Enable mail protocols (POP3/SMTP)","qos":"Enable QOS support","remote":"Enable remote connection support","serial":"Enable serial port support","shmvideo":"Enable shared memory video devices","socks":"Enable SOCKS protocol support","stun":"Enable STUN support","telnet":"Enable telnet protocol support","tts":"Enable Text-To-Speech server support","video":"Enable video support","vxml":"Enable VoiceXML support","wav":"Enable WAVFILE support"},"qxmpp":{"opus":"Enable Opus codec support via media-libs/opus","vpx":"Enable VP8 codec support via media-libs/libvpx"},"rabbitmq-c":{"tools":"Builds cli tools to interact with brokers"},"rest":{"gnome":"Extract proxy information using net-libs/libsoup-gnome"},"telepathy-glib":{"vala":"Enable bindings for dev-lang/vala"},"telepathy-qt":{"farstream":"Enable support for audio/video calls via farstream"},"udns":{"tools":"Build and install dnsget, ex-rdns and rblcheck tools"},"webkit-gtk":{"coverage":"Enable code coverage support","egl":"Enable EGL support.","geoloc":"Enable geolocation support through app-misc/geoclue","gles2":"Enable GLESv2 support.","libsecret":"Enable libsecret support to store login credentials","webgl":"Build support for the WebGL HTML API using virtual/opengl"},"wt":{"extjs":"Build Wt Ext library with JavaScript-only widgets (http://extjs.com/)","fcgi":"Compile in FCGI connector","graphicsmagick":"Enable GraphicsMagick, for supporting painting to raster images (PNG, GIF, ...) (WRasterImage)","resources":"Install resources directory","server":"Compile in stand-alone httpd connector"},"wvstreams":{"boost":"Use dev-libs/boost to provide TR1-compatible functional interface. This USE flag is only needed with GCC earlier than version 4.1, or with other compilares not providing said interface."},"xrootd":{"fuse":"Enable the sys-fs/fuse filesystem driver","http":"Enable http protocol support","libevent":"Use dev-libs/libevent for event handling"},"zeromq":{"pgm":"Build PGM (Pragmatic General Multicast)extention, a protocol for reliable multicast transport of data over IP networks."}},"net-mail":{"automx":{"memcached":"Enable memcached support","sql":"Enable support for SQL backends","tools":"Install additional automx-test tool"},"courier-imap":{"trashquota":"include deleted messages, and the Trash folder, in the estimated quota usage for maildirs"},"cyrus-imapd":{"replication":"Enable replication support in the cyrus imap server","sieve":"Enable sieve support"},"dbmail":{"sieve":"Enable sieve filter support"},"dovecot":{"cydir":"Add cydir storage support","imapc":"Add imap client storage support","lucene":"Add lucene full text search (FTS) support using dev-cpp/clucene","lz4":"Add support for lz4 (de)compression","lzma":"Add support for lzma (de)compression","managesieve":"Add managesieve protocol support","mdbox":"Add mdbox storage support","pop3c":"Add pop3 client storage support","sdbox":"Add sdbox storage support","sieve":"Add sieve support","solr":"Add solr full text search (FTS) support","vpopmail":"Add vpopmail support"},"fdm":{"courierauth":"Add support for Courier authentication library"},"fetchmail":{"hesiod":"Enable support for hesiod","socks":"Enable support for socks proxy","tk":"Enable support for Tk GUI toolkit, in particular it installs fetchmailconf"},"gnubiff":{"password":"Enable save passwords to connect mail servers in user space"},"hotwayd":{"smtp":"Build SMTP proxy (hotsmtpd)"},"lbdb":{"abook":"Enables app-misc/abook support","finger":"Enables finger support"},"libpst":{"dii":"enable dii support"},"mailutils":{"clients":"Build client programs - frm maidag mail sieve messages readmsg dotlock movemail mimeview mh","servers":"Build server programs - imap4d pop3d comsatd","tokyocabinet":"Enable Tokyo Cabinet database support"},"mairix":{"gnus":"Add support for the marks propagation feature in app-emacs/gnus"},"mpop":{"libsecret":"Enable libsecret support to store login credentials"},"mu":{"emacs":"Install the mu4e mail client.","gui":"Build and install the experimental gui 'mug'."},"notmuch":{"crypt":"Support decryption and verification of PGP/MIME messages and in Emacs UI - encryption","doc":"Install API documentation for enabled bindings","emacs":"Install Emacs UI (the main one)","mutt":"Install helper script for Mutt","nmbug":"Install experimental tag sharing / pseudo-bug-tracking script for Notmuch (see http://notmuchmail.org/nmbug/)","pick":"Experimental threaded message view for the emacs interface"},"offlineimap":{"sqlite":"Enable runtime support for sqlite mail status backend."},"postfix-logwatch":{"logwatch":"Install filters for use with sys-apps/logwatch."},"qmailadmin":{"maildrop":"Filter spam using maildrop"},"qpopper":{"apop":"Enables the pop.auth file in /etc/pop.auth","drac":"Enables DRAC support","mailbox":"Enables mail spool file is in home directory ~/Mailbox"},"tpop3d":{"authexternal":"Enable authentication by an external program","drac":"Enable dynamic relay support in the tpop3d pop3 server","flatfile":"Enable authentication against /etc/passwd-style flat files","passwd":"Enable /etc/passwd authentication","sha1":"Use OpenSSL for sha1 encrypted passwords.","shadow":"Enable /etc/shadow authentication"},"uw-imap":{"clearpasswd":"Enables cleartext logins outside of SSL sessions"},"vchkuser":{"debug":"Enables debug messages to syslog"},"vpopmail":{"clearpasswd":"Enables cleartext password storage in the vpasswd files","ipalias":"Enables enable-ip-alias-domains","maildrop":"Enables mail-filter/maildrop support in vdelivermail","spamassassin":"Enables mail-filter/spamassassin support"}},"net-misc":{"apt-cacher-ng":{"fuse":"Install the sys-fs/fuse based acngfs, to use a userspace filesystem for the apt cache."},"aria2":{"bittorrent":"Enable support for the bittorrent protocol.","jemalloc":"Use dev-libs/jemalloc to replace the malloc() implementation with a possibly faster one","libuv":"Use dev-libs/libuv backend.","libxml2":"Use dev-libs/libxml2 for XML parsing (preferred) instead of dev-libs/expat.","metalink":"Enable support for metalink.","nettle":"Use dev-libs/nettle and dev-libs/gmp for bittorrent/metalink crypto instead of dev-libs/libgcrypt (when dev-libs/openssl is not being used).","scripts":"Install additional scripts which use aria2's xmlrpc functionality."},"asterisk":{"cluster":"Enable high-availability support through the Corosync Cluster Engine","dahdi":"Support Digium compatible hardware (formerly known as Zaptel).","gtalk":"Enable support for Google Talk services","http":"Enable embedded web server","ilbc":"Enable the Internet Low Bitrate Codec (iLBC)","newt":"Include additional tools that require redhats windowing toolkit","osplookup":"Support secure peering using the Open Settlement Protocol","samples":"Install sample sound and configuration files (default: on)","span":"Enable support for the spandsp codec","srtp":"Enable support for encrypted voice transmission (secure RTP)"},"asterisk-core-sounds":{"alaw":"Install the sounds files for the alaw codec.","g722":"Install the sounds files for the g722 codec.","g729":"Install the sounds files for the g729 codec.","siren14":"Install the sounds files for the siren14 codec.","siren7":"Install the sounds files for the siren7 codec.","sln16":"Install the sounds files for the sln16 codec.","ulaw":"Install the sounds files for the ulaw codec.","wav":"Install the sounds files for the wav codec."},"asterisk-extra-sounds":{"alaw":"Install the sounds files for the alaw codec.","g722":"Install the sounds files for the g722 codec.","g729":"Install the sounds files for the g729 codec.","gsm":"Install the sounds files for the +gsm codec.","siren14":"Install the sounds files for the siren14 codec.","siren7":"Install the sounds files for the siren7 codec.","sln16":"Install the sounds files for the sln16 codec.","ulaw":"Install the sounds files for the ulaw codec.","wav":"Install the sounds files for the wav codec."},"asterisk-moh-opsound":{"alaw":"Install the sounds files for the alaw codec.","g722":"Install the sounds files for the g722 codec.","g729":"Install the sounds files for the g729 codec.","gsm":"Install the sounds files for the +gsm codec.","siren14":"Install the sounds files for the siren14 codec.","siren7":"Install the sounds files for the siren7 codec.","sln16":"Install the sounds files for the sln16 codec.","ulaw":"Install the sounds files for the ulaw codec.","wav":"Install the sounds files for the wav codec."},"badvpn":{"client":"Build the badvpn-client program, a daemon that runs on endpoints of the VPN.","ncd":"Build NCD, a lightweight scripting language especially suited for network configurations.","server":"Build the badvpn-server program, a central server that manages the VPN network.","tun2socks":"Build tun2socks, a program which implements a TUN device that forwards TCP traffic through a SOCKS5 server.","udpgw":"Build udpgw, a small daemon which allows tun2socks to forward UDP traffic."},"batman-adv":{"bla":"B.A.T.M.A.N. bridge loop avoidance","dat":"B.A.T.M.A.N. distributed arp table","mcast":"B.A.T.M.A.N. multicast optimizations","nc":"B.A.T.M.A.N. network coding"},"bfgminer":{"adl":"Enable support for controlling fans and overclocking on AMD cards with AMD Display Library","antminer":"Enable support for mining with AntMiner U1 sticks","avalon":"Enable support for mining with Avalon 1 ASIC modules","avalonmm":"Enable support for mining with Avalon 2/3 ASIC modules","bfsb":"Enable support for mining on BFSB host Raspberry Pi","bfx":"Enable support for mining with BFx2 USB sticks","bifury":"Enable support for mining with Bi*fury USB sticks","bigpic":"Enable support for mining with Big Picture Mining USB sticks (Red/BlueFury, BF1, etc)","bitforce":"Enable support for mining with ButterFly Labs BitFORCE ASICs and/or FPGAs","bitfury":"Enable support for mining with 55nm Bitfury-based devices","cointerra":"Enable support for mining with CoinTerra TerraMiner.","cpumining":"Enable support for mining with CPUs","drillbit":"Enable support for mining with Drillbit boards","dualminer":"Enable support for mining with DualMiner USB sticks","gridseed":"Enable support for mining with 5-chip GridSeed orbs","hashbuster":"Enable support for mining with HashBuster nano boards","hashbuster2":"Enable support for mining with HashBuster micro boards","hashfast":"Enable support for mining with HashFast devices","icarus":"Enable support for mining with Icarus-compatible devices (including Block Erupter Sapphire ASICs)","jingtian":"Enable support for mining on JingTian boards via SPI/GPIO","keccak":"Enable support for mining with Keccak miners","klondike":"Enable support for mining with Klondike USB miners","libusb":"Use libusb","littlefury":"Enable support for mining with LittleFury USB sticks","metabank":"Enable support for mining on Metabank host Raspberry Pi","minion":"Enable support for mining on minion chips via SPI (BlackArrow Prospero)","modminer":"Enable support for mining with ModMiner FPGAs","nanofury":"Enable support for mining with NanoFury USB sticks","opencl":"Enable support for mining with OpenCL-capable devices (GPUs)","proxy":"Enable support for virtual proxy device","proxy_getwork":"Enable proxy support for getwork protocol (often used with Block Erupter Blades)","proxy_stratum":"Enable proxy support for stratum protocol","rockminer":"Enable support for mining with RockMiner devices","screen":"Provide start-bfgminer.sh script to launch BFGMiner in app-misc/screen","scrypt":"Enable support for scrypt mining algorithm","sha256d":"Enable support for SHA256d mining algorithm","twinfury":"Enable support for mining with Twinfury USB sticks","udev-broad-rules":"Enable broader udev rules that may match non-mining devices","x6500":"Enable support for mining with X6500 FPGAs","zeusminer":"Enable support for mining with ZeusMiner units","ztex":"Enable support for mining with Ztex FPGAs"},"cfengine":{"html":"Install HTML documentation","libvirt":"Enable support for virtual machine management through app-emulation/libvirt","qdbm":"Use dev-db/qdbm as database backend","tests":"Install test files","tokyocabinet":"Use dev-db/tokyocabinet as database backend"},"cgminer":{"ants1":"Enable support for Antminer S1 Bitmain","ants2":"Enable support for Antminer S2 Bitmain","avalon":"Enable support for Avalon ASICs","avalon2":"Enable support for Avalon2 ASICs","avalon4":"Enable support for Avalon4 ASICs","bab":"Enable support for BlackArrow Bitfury","bflsc":"Enable support for BFL ASICs","bitforce":"Enable support for mining with ButterFly Labs BitFORCE FPGAs","bitfury":"Enable support for mining with BitFury ASICs","bitmine_A1":"Enable support for mining with Bitmine.ch A1 ASICs","blockerupter":"Enable support for mining with BlockRupter ASICs","cointerra":"Enable support for mining with Cointerra ASICs","drillbit":"Enable support for mining with Drillbit BitFury ASICs","hashfast":"Enable support for mining with Hashfast","hashratio":"Enable support for mining with Hashratio","icarus":"Enable support for mining with Icarus FPGAs","klondike":"Enable support for mining with Klondik ASICs","knc":"Enable support for mining with KnC miners","minion":"Enable support for mining with BlackArrow Bitfury","modminer":"Enable support for mining with ModMiner FPGAs","spondoolies":"Enable support for Spondoolies"},"chrony":{"rtc":"Include support for the Linux Real Time Clock interface"},"connman":{"ethernet":"Enable ethernet support.","l2tp":"Use net-dialup/xl2tpd for L2TP VPN support.","ofono":"Use net-misc/ofono for telephony support.","openconnect":"Use net-misc/openconnect for VPN support.","openvpn":"Use net-misc/openvpn for openvpn support.","pptp":"Use net-dialup/pptpclient for PPTP VPN support.","tools":"Enable testing tools.","vpnc":"Use net-misc/vpnc for cisco VPN support.","wispr":"Enable support for WISPr hotspot logins."},"csync":{"sftp":"Enable sftp transfer support via net-libs/libssh"},"curl":{"metalink":"Enable metalink support","rtmp":"Enable RTMP Streaming Media support","ssh":"Enabled SSH urls in curl using libssh2","ssl":"Enable crypto engine support (via openssl if USE='-gnutls -nss')"},"dahdi":{"flash":"Support (short) flash on FXS"},"dahdi-tools":{"ppp":"Enables PPP/DAHDIRAS support"},"dhcp":{"client":"Install the dhclient program","server":"Install the dhcpd and dhcrelay programs"},"dhcpcd":{"embedded":"Embed the definitions of dhcp options in the dhcpcd executable"},"dhcpcd-ui":{"gtk3":"Add support for x11-libs/gtk+ (The GIMP Toolkit)"},"directvnc":{"dmalloc":"Enable debugging with the dmalloc library","mouse":"Adds mouse support"},"dropbear":{"bsdpty":"Add support for legacy BSD pty's rather than dynamic UNIX pty's -- do not use this flag unless you are absolutely sure you actually want it","multicall":"Build all the programs as one little binary (to save space)","shadow":"Enable shadow password support"},"dropbox":{"librsync-bundled":"Use bundled librsync library"},"electrum":{"aliases":"Enable plugin for looking up aliases","amodem":"Enable plugin for air-gapped transaction signing using dev-python/amodem","cli":"Enables the CLI interface","coinbase_com":"Enable plugin to use Coinbase.com's buyback program","cosign":"Enable plugin to support multisig wallets between multiple Electrum clients","fiat":"Enable plugin for looking up fiat values of bitcoin","graph":"Enable plugin to generate transaction graphs","greenaddress_it":"Enable plugin to verify GreenAddress.it instant transactions","gtk3":"Enable support for gtk+3","pos":"Enable plugin for point-of-sale operation","qrcode":"Enable QR code scanning with media-gfx/zbar","sync":"Enable plugin to sync wallet metadata across multiple Electrum clients","trustedcoin_com":"Enable plugin to use two-factor service by TrustedCoin.com","vkb":"Enable plugin for virtual keyboard"},"fatrat":{"bittorrent":"Use the bittorrent protocol via net-libs/rb_libtorrent.","webinterface":"Enable builtin webinterface."},"flexget":{"transmission":"Support comminucation with net-p2p/transmission"},"freerdp":{"channels":"Build virtual channel plugins","client":"Build client binaries","server":"Build server binaries"},"gsasl":{"gcrypt":"Use dev-libs/libgcrypt for low-level crypto","ntlm":"Add support for Microsoft's NTLM mechanism using net-libs/libntlm"},"guacamole-server":{"pango":"enable pango rendering","ssh":"enable support for ssh connections","telnet":"enable support for telnet connections","terminal":"enable support for terminal sessions"},"gwget":{"epiphany":"Build epiphany extensions"},"hotot":{"chrome":"Build chrome browser extension"},"htbinit":{"esfq":"Add support for Enhanced Stochastic Fairness queueing discipline."},"hylafaxplus":{"html":"Convert faxes into html email","jbig":"JBIG Fax Compression Support","mgetty":"Receive faxes via serial port connections","pam":"hfaxd authentication via PAM"},"i2pd":{"i2p-hardening":"Compile with hardening on vanilla compilers/linkers","library":"Build the libi2pd library"},"icecast":{"kate":"Add karaoke and text encapsulation support for Ogg files","logrotate":"Install support files for app-admin/logrotate?","yp":"Build support for yp public directory listings"},"iputils":{"SECURITY_HAZARD":"Allow non-root users to flood (ping -f). This is generally a very bad idea."},"knock":{"server":"Installs the knockd server daemon."},"lcr":{"asterisk":"net-misc/asterisk channel driver","gsm-bs":"net-wireless/openbsc driver","gsm-ms":"net-wireless/osmobb driver","gsmhr":"Support for GSM HR codec using reference code (very slow)","misdn":"net-misc/misdn driver","sip":"SIP support","ss5":"CCITT No. 5 support"},"libreswan":{"dnssec":"Use DNSSEC resolver (requires net-dns/unbound"},"libteam":{"zmq":"Build witch net-libs/zeromq support"},"lldpd":{"cdp":"Enable Cisco Discovery Protocol","dot1":"Enable Dot1 extension (VLAN stuff)","dot3":"Enable Dot3 extension (PHY stuff)","edp":"Enable Extreme Discovery Protocol","fdp":"Enable Foundry Discovery Protocol","graph":"Create dot graphs in documentations","jansson":"Enable JSON output via Jansson","json-c":"Enable JSON output via json-c","lldpmed":"Enable LLDP-MED extension","snmp":"Enable the use of SNMP","sonmp":"Enable SynOptics Network Management"},"mediatomb":{"curl":"Support YouTube and external media sources (e.g. internet radio)","flac":"Enable FLAC metadata/artwork support","id3tag":"Use media-libs/libid3tag for reading files' metadata rather than taglib","inotify":"Enable inotify filesystem monitoring support","lastfm":"Enable last.fm support","libextractor":"Use libextractor to gather files' metadata","magic":"Use libmagic to determine file types","mysql":"Use dev-db/mysql as backend rather than SQLite3","taglib":"Use media-libs/taglib for reading files' metadata rather than id3lib","thumbnail":"Enables video thumbnails generation through media-video/ffmpegthumbnailer"},"megatools":{"fuse":"Enables support for the filesystem in userspace plugin through sys-fs/fuse."},"memcached":{"slabs-reassign":"Allow manual reassignment of memory slabs at the cost of slab optimizations."},"minidlna":{"netgear":"Enable netgear branding","readynas":"Enable readynas branding"},"modemmanager":{"mbim":"Enable MBIM modem protocol","qmi":"Enable support for the QMI modem protocol used by devices with Qualcomm chipsets","qmi-newest":"Avoid deprecated QMI commands. Warning: may cause incompatibility with older devices."},"mosh":{"client":"Build network client","examples":"Include example scripts","mosh-hardening":"Enable compiler and linker options to frustrate memory corruption exploits","server":"Build network server","ufw":"Install net-firewall/ufw rule set","utempter":"Include libutempter support"},"mulk":{"checksum":"Enable checksum verification for Metalink from dev-libs/openssl","metalink":"Enable support for media-libs/libmetalink"},"ncp":{"diet":"Compile against dev-libs/dietlibc"},"networkmanager":{"connection-sharing":"Use net-dns/dnsmasq and net-firewall/iptables for connection sharing","consolekit":"Use sys-auth/consolekit for session tracking","dhclient":"Use dhclient from net-misc/dhcp for getting ip","dhcpcd":"Use net-misc/dhcpcd for getting ip","modemmanager":"Enable support for mobile broadband devices using net-misc/modemmanager","nss":"Use dev-libs/nss for cryptography","ppp":"Enable support for mobile broadband and PPPoE connections using net-dialup/ppp","resolvconf":"Use net-dns/openresolv for managing DNS information","teamd":"Enable Teamd control support","wext":"Enable support for the deprecated Wext (Wireless Extensions) API; needed for some older drivers (e.g. ipw2200, ndiswrapper)","wifi":"Enable support for wifi and 802.1x security using net-wireless/wpa_supplicant"},"ntp":{"openntpd":"Allow ntp to be installed alongside openntpd","parse-clocks":"Add support for PARSE clocks","samba":"Provide support for Samba's signing daemon (needed for Active Directory domain controllers)"},"nxcl":{"nxclient":"Use nxssh from net-misc/nxclient instead of standard ssh"},"nxserver-freenx":{"nxclient":"Allow to install net-misc/nxclient in parallel with this package, using it to display messages in the sessions"},"ocsync":{"sftp":"Enable sftp transfer support via net-libs/libssh"},"ofono":{"atmodem":"ETSI AT modem support.","bluetooth":"Enable Bluetooth modem support using net-wireless/bluez.","cdmamodem":"Enable CDMA modem support.","datafiles":"Enable install configuration and data files.","dundee":"Enable BlueTooth DUN deamon support.","isimodem":"Enable PhoNet/ISI modem support.","phonesim":"Enable phone Simulator support","provision":"Enable GPRS provisioning support","qmimodem":"Enable Qualcomm QMI modem support","tools":"Enable testing tools"},"oidentd":{"masquerade":"Enable support for masqueraded/NAT connections"},"openconnect":{"gssapi":"Build GSSAPI support.","java":"Build JNI bindings using jni.h","libproxy":"Enable proxy support."},"openssh":{"X509":"Adds support for X.509 certificate authentication","bindist":"Disable EC/RC5 algorithms in OpenSSL for patent reasons.","hpn":"Enable high performance ssh","ldap":"Add support for storing SSH public keys in LDAP","ldns":"Use LDNS for DNSSEC/SSHFP validation.","sctp":"Support for Stream Control Transmission Protocol","ssh1":"Support the legacy/weak SSH1 protocol","ssl":"Enable additional crypto algorithms via OpenSSL"},"openswan":{"curl":"Include curl support (used for fetching CRLs)","extra-algorithms":"Include additional strong algorithms (Blowfish, Twofish, Serpent and SHA2)","ldap":"Include LDAP support (used for fetching CRLs)","ms-bad-proposal":"Allow bad IP address proposal offered by an Microsoft L2TP/IPSec servers","nocrypto-algorithms":"Include algorithms that don't even encrypt (1DES)","nss":"Include libnss support (adds smartcard support)","ssl":"Use OpenSSL libraries for BIGNUM support","weak-algorithms":"Include weak algorithms (DH1)"},"openvpn":{"down-root":"Enable the down-root plugin","iproute2":"Enabled iproute2 support instead of net-tools","passwordsave":"Enables openvpn to save passwords","pkcs11":"Enable PKCS#11 smartcard support","plugins":"Enable the OpenVPN plugin system","polarssl":"Use PolarSSL instead of OpenSSL"},"openvswitch":{"monitor":"Build the Python and GUI dependent monitor applications","pyside":"Use dev-python/pyside instead of dev-python/PyQt4 for Python/Qt-bindings when building with USE=monitor."},"owncloud-client":{"nautilus":"Install the gnome-base/nautilus extension","sftp":"Enable sftp transfer support via net-libs/libssh"},"pavuk":{"hammer":"Turn on chunky/hammer mode (DoS) in pavuk: when specified, pavuk will include features to stress test web sites using an ultrahigh performancereplay mechanism"},"plowshare":{"modules":"Install a system-wide set of modules","view-captcha":"View captcha with aview"},"ps3mediaserver":{"multiuser":"Allow renderer customization per-user.","transcode":"Install optional dependencies for transcoding support via media-video/mplayer","tsmuxer":"Install optional dependencies for transcoding support via media-video/tsmuxer"},"putty":{"gtk":"Build the PuTTY client which requires x11-libs/gtk+:2. Otherwise only the CLI tools puttygen, plink, pscp and psftp will be built."},"quagga":{"bgpclassless":"Apply unofficial patch to enable classless prefixes for BGP. Patch and information to be found at http://hasso.linux.ee/doku.php/english:network:quagga","multipath":"Enable multipath routes support for any number of routes","ospfapi":"Enable OSPFAPI support for client applications accessing the OSPF link state database","pam":"Add support for PAM (via sys-libs/pam) to the Quagga Virtual Terminal Interface Shell (vtysh); if the readline USE flag is disabled, this flag is ignored","readline":"Enable support for sys-libs/readline to provide the Quagga Virtual Terminal Interface Shell (vtysh)","tcp-zebra":"Enable TCP zserv interface on port 2600 for Zebra/protocol-daemon communication. Unix domain sockets are chosen otherwise"},"rancid-git":{"git":"Enable git (version control system) support"},"rdesktop":{"kerberos":"Enable CredSPP support + Kerberos authentication with net-libs/libgssglue","pcsc-lite":"Enable smartcard support with sys-apps/pcsc-lite driver"},"remmina":{"freerdp":"Add support for the net-misc/freerdp application","ssh":"Enable support for SSH/SFTP protocol; see also 'vte'","telepathy":"Enable telepathy support","vte":"Enable virtual terminal support (for SSH sessions)"},"rygel":{"tracker":"Install dependencies for the tracker plugin","transcode":"Install dependencies for transcoding support"},"scponly":{"gftp":"Enables gFTP compatibility","logging":"Enables SFTP logging compatibility","passwd":"Enables passwd compatibility","quota":"Enables quota compatibility","rsync":"Enables rsync compatibility with potential security risks","scp":"Enables scp compatibility with potential security risks","sftp":"Enables SFTP compatibility","subversion":"Enables Subversion compatibility with potential security risks","unison":"Enables Unison compatibility with potential security risks","wildcards":"Enables wildcard processing with potential security risks","winscp":"Enables WinSCP 2.0 compatibility with potential security risks"},"sitecopy":{"rsh":"This allows the use of rsh (remote shell) and rcp (remote copy) for authoring websites. sftp is a much more secure protocol and is preferred.","webdav":"Enable WebDav (Web-based Distributed Authoring and Versioning) support. This system allows users to collaborate on websites using a web based interface. See the ebuild for an FAQ page. Enables neon as well to handle webdav support."},"sks":{"optimize":"Enables bytecode optimization"},"slimrat":{"X":"Install also GUI client"},"spice-gtk":{"dbus":"Support for desktop integration such as automounting and other APIs exposed by your DE via D-Bus","gtk3":"Link against x11-libs/gtk+:3 instead of x11-libs/gtk+:2","policykit":"Enable sys-auth/polkit support for the usbredir acl helper","usbredir":"Use sys-apps/usbredir to redirect USB devices to another machine over TCP","vala":"Generate dev-lang/vala bindings using vapigen and regenerate .vala files using valac","webdav":"Support for folder-sharing between guest and client using net-libs/phodav"},"stargazer":{"debug":"Enable extra debug codepaths, like asserts and extra output.","doc":"Adds extra documentation (API, doc, etc).","examples":"Install examples, usually source code.","module_auth_always_online":"Enable build of \"Always Online\" authentication module for Stargazer.","module_auth_freeradius":"Enable build of \"Radius\" authentication module for Stargazer. This module capable of using RADIUS procotol for user authentication.","module_auth_internet_access":"Enable build of \"InetAccess\" authentication module for Stargazer. InetAccess is a Stargazer specific authentication protocol.","module_capture_ether":"Enable build of \"Ethernet\" traffic capture module for Stargazer. This module uses RAW sockets to capture traffic.","module_capture_ipq":"Enable build of \"IPQ\" traffic capture module for Stargazer. This module uses IPQ subsystem to capture traffic.","module_capture_netflow":"Enable build of \"NetFlow\" traffic capture module for Stargazer. This module capable of receiving traffic data by NetFlow protocol.","module_config_rpcconfig":"Enable build of \"XMLRPC\" configuration module for Stargazer. This module uses XML-RPC protocol for configuring Stargazer.","module_config_sgconfig":"Enable build of \"SGConf\" configuration module for Stargazer. This module uses Stargazer specific protocol for configuring Stargazer.","module_other_ping":"Enable build of \"Ping\" module for Stargazer. This module pings connected users from time to time to ensure they are alive.","module_other_remote_script":"Enable build of \"Remote Script\" module for Stargazer. This module control rscriptd daemon over the net and makes it execute scripts in reaction to different Stargazer events.","module_other_smux":"Enable build of SMUX module for Stargazer. This module uses SMUX protocol to provide various information about Stargazer.","module_store_files":"Enable build of storage plugin for Stargazer based on plain files.","module_store_firebird":"Enable build of storage plugin for Stargazer, which uses Firebird database for storage.","module_store_mysql":"Enable build of storage plugin for Stargazer, which uses MySQL for storage.","module_store_postgres":"Enable build of storage plugin for Stargazer, which uses PostgreSQL for storage.","radius":"Enable build of FreeRADIUS module for data access via Stargazer.","rscriptd":"Enable build of remote script execute daemon for Stargazer, which run scripts when receive special signal from Stargazer.","sgauth":"Enable build of command-line utility for authorization in Stargazer.","sgconf":"Enable build of command-line utility for configuring Stargazer.","sgconf_xml":"Enable build of command-line xml-based utility for configuring Stargazer.","sgconv":"Enable build of utility to convert Stargazer data between storage backends.","stargazer":"Enable build of Stargazer billing system.","static-libs":"Install static libraries."},"streamtuner":{"shout":"Enable shoutcast plug-in.","xiph":"Enable xiph.org plug-in."},"strongswan":{"constraints":"Enable advanced X.509 constraint checking plugin.","dhcp":"Enable server support for querying virtual IP addresses for clients from a DHCP server. (IKEv2 only)","eap":"Enable support for the different EAP modules that is supported.","farp":"Enable faking of ARP responses for virtual IP addresses assigned to clients. (IKEv2 only)","gcrypt":"Enable dev-libs/libgcrypt plugin which provides 3DES, AES, Blowfish, Camellia, CAST, DES, Serpent and Twofish ciphers along with MD4, MD5 and SHA1/2 hash algorithms, RSA and DH groups 1,2,5,14-18 and 22-24(4.4+). Also includes a software random number generator.","non-root":"Force IKEv1/IKEv2 daemons to normal user privileges. This might impose some restrictions mainly to the IKEv1 daemon. Disable only if you really require superuser privileges.","openssl":"Enable dev-libs/openssl plugin which is required for Elliptic Curve Cryptography (DH groups 19-21,25,26) and ECDSA. Also provides 3DES, AES, Blowfish, Camellia, CAST, DES, IDEA and RC5 ciphers along with MD2, MD4, MD5 and SHA1/2 hash algorithms, RSA and DH groups 1,2,5,14-18 and 22-24(4.4+) dev-libs/openssl has to be compiled with USE=\"-bindist\".","pkcs11":"Enable pkcs11 support.","strongswan_plugins_blowfish":"Enable support for the blowfish plugin.","strongswan_plugins_ccm":"Enable support for the ccm plugin.","strongswan_plugins_ctr":"Enable support for the ctr plugin.","strongswan_plugins_gcm":"Enable support for the gcm plugin.","strongswan_plugins_ha":"Enable support for the ha plugin.","strongswan_plugins_ipseckey":"Enable support for the ipseckey plugin.","strongswan_plugins_led":"Enable support for the led plugin.","strongswan_plugins_lookip":"Enable support for the lookip plugin.","strongswan_plugins_ntru":"Enable support for the ntru plugin.","strongswan_plugins_padlock":"Enable support for the padlock plugin.","strongswan_plugins_rdrand":"Enable support for the rdrand plugin.","strongswan_plugins_systime-fix":"Enable support for the systime-fix plugin.","strongswan_plugins_unbound":"Enable support for the unbound plugin.","strongswan_plugins_unity":"Enable support for the unity plugin.","strongswan_plugins_vici":"Enable support for the vici plugin.","strongswan_plugins_whitelist":"Enable support for the whitelist plugin."},"teamviewer":{"system-wine":"Use app-emulation/wine instead of bundled one."},"termpkg":{"uucp":"Adds support for uucp style device locking"},"tigervnc":{"server":"Build TigerVNC server","xorgmodule":"Build the Xorg module"},"tightvnc":{"server":"Build TightVNC server"},"tinc":{"gcrypt":"Add support for encrypted log files using dev-libs/libgcrypt","gui":"Add GUI support, using dev-python/wxpython","openssl":"Using dev-libs/openssl for cryptography-related functions","uml":"Enable support for User Mode Linux Sockets","vde":"Enable Virtual Distributed Ethernet (VDE) based networking"},"tor":{"bufferevents":"Use libevent's buffered IO implementation (unstable, buggy)","ecc":"Enable Elliptical Curve Cyptography","nat-pmp":"Enable NAT Port Mapping Protocol","scrypt":"Use app-crypt/libscrypt for the scrypt algorithm","stats":"Enable tracking of how much of each kind of resource we download","tor-hardening":"Compile tor with hardening on vanilla compilers/linkers","transparent-proxy":"Enable transparent proxying","web":"Build a tor2web service instead of a tor client"},"uftp":{"server":"Install uftp server daemon"},"vde":{"pcap":"Enable the pcap-based plugin that allows creating a switch against a real interface.","ssl":"Enable the cryptcab plugin that allows creating an encrypted virtual cable."},"vinagre":{"rdp":"Enable access to Windows RDP protocol using net-misc/rdesktop","spice":"Enable access to SPICE-enabled virtual machines","ssh":"Enable ssh plugin using x11-libs/vte","telepathy":"Enable access to remote desktop via a net-libs/telepathy-glib client"},"vino":{"libsecret":"Enable app-crypt/libsecret support to store login credentials.","telepathy":"Enable desktop sharing through a telepathy client"},"vpnc":{"resolvconf":"Enable support for DNS managing framework net-dns/openresolv"},"wget":{"ntlm":"Enable support for NTLM (Windows-based) authorization","uuid":"Generate UUIDs for the WARC (Web ARChive file format) using libuuid; otherwise use a simple RNG (random number generator)"},"wicd":{"ambiance":"Install icons from Ubuntu's ambiance theme","gnome-shell":"Install gnome-shell extension","gtk":"Installs a gtk UI. This is enabled by default because it is intended behavior. Requires dev-python/pygtk","ioctl":"Installs additional python libraries to use as a backend. This will improve speed but is experimental.","mac4lin":"Change default icons to mac4lin icon set","ncurses":"Installs a ncurses UI","pm-utils":"Installs the pm-utils hooks for suspend/resume and requires sys-power/pm-utils"},"x2goserver":{"fuse":"Use sys-fs/sshfs-fuse to allow shared folders"},"xrdp":{"fuse":"Enable clipboard file / device redirection via sys-fs/fuse"},"yaydl":{"soundextract":"Extract the soundtracks of the downloaded videos"}},"net-nds":{"389-ds-base":{"auto-dn-suffix":"Enable auto bind with auto dn suffix over unix domain socket (LDAPI) support","autobind":"Enable auto bind over unix domain socket (LDAPI) support","bitwise":"Enable bitwise plugin - supported data in raw/bitwise format","dna":"Enable dna (distributed numeric assignment ) plugin - to automatically assign unique uid numbers to new user entries as they are created.","ldapi":"Enable LDAP over unix domain socket (LDAPI) support","pam-passthru":"Enable pam-passthru plugin - for simple and fast system services used in ldap","presence":"Enable presence plugin - non-stabdart syntax validation"},"gosa-core":{"mail":"Manage mail accounts and servers with gosa.","samba":"Manage samba accounts with gosa."},"ldapvi":{"gnutls":"Use net-libs/gnutls instead of dev-libs/openssl"},"nsscache":{"nsscache":"Depend on sys-auth/libnss-cache to handle flat files","nssdb":"Depend on sys-libs/libnss_db to handle dbm files."},"openldap":{"experimental":"Enable experimental backend options","minimal":"Build libraries & userspace tools only. Does not install any server code.","odbc":"Enable ODBC and SQL backend options","overlays":"Enable contributed OpenLDAP overlays","smbkrb5passwd":"Enable overlay for syncing ldap, unix and lanman passwords"},"rpcbind":{"warmstarts":"Enables rpcbind to cache configuration for warm restarts"},"tac_plus":{"finger":"Adds support for checking user counts via fingering the NAS","maxsess":"Enforce a limit on maximum sessions per user"}},"net-news":{"liferea":{"libnotify":"Enable popup notifications"},"quiterss":{"phonon":"Enable sound support via media-libs/phonon or dev-qt/qtphonon"}},"net-nntp":{"inn":{"innkeywords":"Enable automatic keyword generation support","inntaggedhash":"Use tagged hash table for history (disables large file support)"},"nzbget":{"parcheck":"Enable support for checking PAR archives"},"sabnzbd":{"rar":"Add support for extracting rar files","ssl":"Add support for SSL web interface","unzip":"Add support for extracting zip files","yenc":"Use yenc to speed up nntp encoding and decoding"},"slrn":{"canlock":"Add support for cancel locks via net-libs/canlock","uudeview":"Add support for yEnc coding and more using dev-libs/uulib"},"tin":{"cancel-locks":"Enable Cancel-Lock header functionality (also enables USE=evil)","etiquette":"Enable the display off posting etiquettes","evil":"Let tin generate a message ID","forgery":"Cancel messages posted from a different account","gpg":"Enable app-crypt/gpg support"}},"net-p2p":{"amule":{"daemon":"Enable amule daemon","remote":"Enable remote controlling of the client","stats":"Enable statistic reporting"},"bitcoin-qt":{"1stclassmsg":"Enable first-class Bitcoin message tools","bitcoin_policy_cpfp":"Child-Pays-For-Parent policy: If you mine, you will give consideration to child transaction fees to pay for their parents","bitcoin_policy_dcmp":"Data Carrier Multi-Push policy: Your node will assist transactions with multiple pushes in their data carrier (if any)","bitcoin_policy_rbf":"Replace By Fee policy: Your node will preferentially mine and relay transactions paying the highest fee, regardless of receive order","bitcoin_policy_spamfilter":"Enhanced spam filter policy: Notorious spammers will not be assisted by your node","ljr":"Enable Luke Dashjr's patches","ljr-antispam":"Enable Luke Dashjr's address-based spam filter","qrcode":"Enable generation of QR Codes for receiving payments","upnp":"Enable Universal Plug and Play","wallet":"Enable wallet support","xt":"Enable Mike Hearn's Bitcoin XT patches","zeromq":"Report blocks and transactions via zeromq"},"bitcoind":{"bitcoin_policy_cpfp":"Child-Pays-For-Parent policy: If you mine, you will give consideration to child transaction fees to pay for their parents","bitcoin_policy_dcmp":"Data Carrier Multi-Push policy: Your node will assist transactions with multiple pushes in their data carrier (if any)","bitcoin_policy_rbf":"Replace By Fee policy: Your node will preferentially mine and relay transactions paying the highest fee, regardless of receive order","bitcoin_policy_spamfilter":"Enhanced spam filter policy: Notorious spammers will not be assisted by your node","ljr":"Enable Luke Dashjr's patches","ljr-antispam":"Enable Luke Dashjr's address-based spam filter","logrotate":"Use app-admin/logrotate for rotating logs","upnp":"Enable Universal Plug and Play","wallet":"Enable wallet support","xt":"Enable Mike Hearn's Bitcoin XT patches","zeromq":"Report blocks and transactions via zeromq"},"datacoin-hp":{"logrotate":"Use app-admin/logrotate for rotating logs"},"dbhub":{"switch_user":"Enable support for switching user"},"deluge":{"setproctitle":"Install dependencies needed for beautifying the process name","webinterface":"Install dependencies needed for the web interface"},"dogecoin-qt":{"qrcode":"Enable generation of QR Codes for receiving payments"},"eiskaltdcpp":{"cli":"Enable sample cli based on readline","daemon":"Enable eiskaltdcpp-daemon","dht":"Enable DHT (distributed hash table) support for libeiskaltdcpp","emoticons":"Install emoticon packs","json":"Enable JSON for cli and daemon","libcanberra":"Enable sound notifications support over libcanberra in EiskaltDC++ Gtk","minimal":"Don't install headers"},"fms":{"frost":"Add support for frost boards"},"gift":{"ares":"pull in Ares plugin","fasttrack":"pull in FastTrack plugin","gnutella":"pull in Gnutella plugin","openft":"pull in OpenFT plugin"},"ktorrent":{"bwscheduler":"Schedule upload and download limits over a period of a week","downloadorder":"Specify the download order of a multi-file torrent","infowidget":"Displays general information about a torrent in several tabs","ipfilter":"Filter IP addresses through a blocklist","kross":"Enable kross scripting support","logviewer":"Displays the logging output","magnetgenerator":"Generates magnet URI's","mediaplayer":"Phonon-based media player","rss":"Syndication plugin for KTorrent, supporting RSS and Atom feeds","scanfolder":"Scan folders for torrent files and load them","search":"Search for torrents","shutdown":"Shutdown when done","stats":"Shows statistics about torrents in several graphs","webinterface":"Allows control of KTorrent via a web interface","zeroconf":"Discover peers on the local network using the Zeroconf protocol"},"litecoin-qt":{"qrcode":"Enable generation of QR Codes for receiving payments"},"litecoind":{"logrotate":"Use app-admin/logrotate for rotating logs"},"mldonkey":{"bittorrent":"enable bittorrent support","fasttrack":"enable fasttrack support","gnutella":"enable gnutella and gnutella2 support","guionly":"enable client build only","magic":"enable use of libmagic"},"ppcoin-qt":{"qrcode":"Enable generation of QR Codes for receiving payments"},"ppcoind":{"logrotate":"Use app-admin/logrotate for rotating logs"},"primecoin-qt":{"qrcode":"Enable generation of QR Codes for receiving payments"},"primecoind":{"logrotate":"Use app-admin/logrotate for rotating logs"},"qbittorrent":{"webui":"Enable the Web UI"},"retroshare":{"cli":"Enables the CLI version of RetroShare","feedreader":"Enables the Feedreader plugin","links-cloud":"Enables LinkClouds plugin","qt4":"Enables the GUI using qt4","voip":"Enables VOIP plugin"},"rtorrent":{"color":"Add custom color support for torrent list","daemon":"Uses app-misc/screen to daemonize this application"},"transmission":{"lightweight":"Optimize transmission for low-resource systems (smaller cache size, prefer unencrypted peer connections, etc.)","xfs":"Enable XFS filesystem capabilities by using sys-fs/xfsprogs headers (in building of fdlimit(.c))"},"transmission-remote-cli":{"rdns":"Enable support for host name resolution"},"transmission-remote-gtk":{"libproxy":"Use net-libs/libproxy for getting the HTTP/HTTPS/SOCKS proxy configuration.","unique":"Enable single instance support using dev-libs/libunique"},"tribler":{"vlc":"Enable vlc support."}},"net-print":{"cups":{"java":"Add support for the Java interpeter in the web server CGIs.","lprng-compat":"Do not install lp... binaries so cups and lprng can coexist.","python":"Add support for the Python interpeter in the web server CGIs."},"cups-filters":{"foomatic":"Build the included foomatic-rip printer driver. Strongly recommended."},"fax4cups":{"capisuite-fax":"Install net-dialup/capisuite backend","efax":"Install net-misc/efax backend","hylafax":"Install net-misc/hylafax backend","mgetty-fax":"Install net-dialup/mgetty backend"},"hplip":{"X":"Enables scanner GUI dependencies with USE=\"scanner\" where media-gfx/xsane is preferred over media-gfx/sane-frontends","doc":"Build documentation","fax":"Enable fax on multifunction devices which support it","hpcups":"Build the hpcups driver for cups (by HP)","hpijs":"Build the IJS driver for cups (Foomatic)","kde":"Enables kde-misc/skanlite as scanner GUI with USE=\"scanner X\"","libnotify":"Enables desktop notifications","libusb0":"Depend on virtual/libusb:0. Some old printers do not work with virtual/libusb:1","minimal":"Only build internal hpijs/hpcups driver (not recommended at all, make sure you know what you are doing)","parport":"Enable parallel port for devices which require it","qt4":"Enable graphical interface using Qt 4","scanner":"Enable scanner on multifunction devices which support it","snmp":"Add support for net-analyzer/net-snmp which enables this driver to work over networks (both for server and client)","static-ppds":"Use statically-generated PPDs instead of Dynamic PPDs. Although this is deprecated some printers may still need it to work properly. Use this flag if hp-setup fails to find/create a valid PPD file"},"magicfilter":{"lprng-failsafe":"Refuse options for compability with certain LPRng versions."}},"net-proxy":{"dansguardian":{"avast":"Enable support for the AvastD content scanner.","backtrace":"Enable logging a backtrace when a segmentation fault occurs.","clamav":"Enable support for the ClamD content scanner.","commandline":"Enable support for command-line content scanners.","email":"Enable support for email reporting functionality.","fancydm":"Enable support for the fancy download manager.","icap":"Enable support for ICAP AV server content scanner.","kaspersky":"Enable support for the Kaspersky AV daemon content scanner.","lfs":"Enable large file support on 32 bit systems.","logrotate":"Use app-admin/logrotate for rotating logs.","ntlm":"Enable support for the NTLM auth plugin.","orig-ip":"Enable support for checking the client's original destination IP address against HTTP request details when deployed as a transparent proxy (US-CERT VU#435052).","trickledm":"Enable support for the trickle download manager."},"haproxy":{"pcre-jit":"Use JIT support for PCRE","tools":"Install additional tools (halog, iprange)"},"privoxy":{"editor":"Enable the web-based actions file editor","external-filters":"Allow to filter content with scripts and programs. Experimental","fast-redirects":"Support fast redirects","force":"Allow single-page disable (force load)","graceful-termination":"Allow to shutdown Privoxy through the webinterface","image-blocking":"Allows the +handle-as-image action, to send \"blocked\" images instead of HTML","lfs":"Support large files (>2GB) on 32-bit systems","png-images":"Use PNG format instead of GIF for built-in images","stats":"Keep statistics","toggle":"Support temporary disable toggle via web interface","whitelists":"Support trust files (white lists)"},"rejik":{"banlists":"Install upstream provided simple banlists"},"shadowsocks-libev":{"openssl":"Use dev-libs/openssl as crypto backend","polarssl":"Use net-libs/polarssl as crypto backend"},"squid":{"ecap":"Adds support for loadable content adaptation modules (http://www.e-cap.org)","esi":"Enable ESI for accelerators, will cause squid reverse proxies to be capable of the Edge Acceleration Specification (www.esi.org)","htcp":"Enable HTCP protocol","icap-client":"Adds ICAP client support","ipf-transparent":"Adds transparent proxy support for systems using IP-Filter (only for *bsd)","kqueue":"Enables *BSD kqueue() support","logrotate":"Use app-admin/logrotate for rotating logs","pf-transparent":"Adds transparent proxy support for systems using PF (only for *bsd)","qos":"Adds support for Quality of Service using netfilter conntrack - see qos_flow directive for more info","ssl-crtd":"Adds support for dynamic SSL certificate generation in SslBump environments","tproxy":"Enables real Transparent Proxy support for Linux Netfilter TPROXY","wccp":"Enable Web Cache Coordination Protocol","wccpv2":"Enable Web Cache Coordination V2 Protocol"},"sshproxy":{"client-only":"Install only the client wrappers"},"tinyproxy":{"filter-proxy":"Enable filtering of domains/URLS","reverse-proxy":"Enable reverse proxying","transparent-proxy":"Enable transparent proxying","upstream-proxy":"Enable upstream proxying","xtinyproxy-header":"Include the X-Tinyproxy header"},"tsocks":{"dns":"Force DNS queries to use SOCKS server via tcp","envconf":"Allow TSOCKS_CONF_FILE to specify configuration file","server-lookups":"Allow hostname resolution _for_ SOCKS servers","tordns":"Apply tordns patch which allows transparent TORification of the DNS queries"},"ufdbguard":{"doc":"Download and install the ufdbguard reference manual in PDF.","httpd":"Build, install and start the provided mini-http daemon with the redirect CGI integrated. Since there is no way to tell ufdbguard to not start it, this is a build-time option."}},"net-voip":{"ekiga":{"gconf":"Enable GConf support","h323":"Enable H.323 protocol","shm":"Enable the Shared Memory Extension from libXext","static":"Statically link to opal and ptlib","xcap":"Enable XML Configuration Access Protocal"},"gnugk":{"ssh":"Enable support for SSH port forwarding using net-libs/libssh"},"linphone":{"assistant":"Turn on assistant compiling (needs gtk enabled)","gsm-nonstandard":"Support non-standard GSM frequencies","sqlite":"Turn on compilation of message storage","tools":"Compile tools","video":"Enable video support (display/capture)"},"telepathy-gabble":{"plugins":"Enable plugin loader"},"yate":{"amrnb":"use AMR-NB","dahdi":"Enable Dahdi driver","gsm":"use GSM codec","h323":"use OpenH323","ilbc":"Enable iLBC codec","ilbc-webrtc":"Enable iLBC webrtc codec","isac-fixed":"Enable iSAC fixed codec","isac-float":"Enable iSAC float codec","mysql":"use MySQL client library","postgres":"use Postgress SQL","sctp":"Enable SCTP sockets","spandsp":"use spandsp library","speex":"use Speex codec","tdmcard":"Enable TDMV API card driver","wanpipe":"Enable Wanpipe support","wpcard":"Enable Wanpipe card driver","zaptel":"Enable Zaptel driver"}},"net-wireless":{"aircrack-ng":{"airdrop-ng":"Build airdrop-ng","airgraph-ng":"Build airgraph-ng","netlink":"Use netlink for channel control instead of WEXT","unstable":"Build the \"unstable\" tools which may randomly fail to run properly"},"bladerf":{"tecla":"use libtecla for command line editing, tab completion, and history"},"bladerf-fpga":{"x115":"bitstream for the x115KLE Cyclone IV FPGA bladerf model\"","x40":"bitstream for the x40KLE Cyclone IV FPGA bladerf model\""},"blueman":{"gconf":"Enable the GConf configuration backend","gnome":"Install the sendto-plugin for gnome-base/nautilus","network":"Add functionality to setup (host) PAN connections using either net-dns/dnsmasq or net-misc/dhcp","sendto":"Install the sendto-plugin for gnome-base/nautilus","thunar":"Install the sendto-plugin for xfce-base/thunar"},"bluez":{"hid2hci":"The HID proxying makes the keyboard / mouse show up as regular USB HID devices, but needs them to be paired before enabling this, otherwise they won't be detected","obex":"Enable OBEX transfer support.","test-programs":"Install tools for testing of various Bluetooth functions"},"crda":{"gcrypt":"Use libgcrypt instead of openssl for key checking"},"gnuradio":{"analog":"enable analog signal processing blocks","atsc":"enable ATSC (HDTV) transmitter and receiver blocks","audio":"enable blocks to connect to audio sources (mic-in) and sinks (speaker-out) ports on a computer","channels":"enable channel mode blocks","digital":"enable digital signal processing blocks","dtv":"enable digital tv signal processing blocks","fcd":"enable Funcube Dongle source block","fec":"enable block for convolutional encoding using the CCSDS standard polynomial (\"Voyager\")","filter":"enable filter signal processing blocks","grc":"enable GNU Radio Companion graphical tool to design signal processing flow graphs","log":"enable logging to console and files","noaa":"enable NOAA POES HRPT receiver blocks","pager":"enable pager signal processing blocks","performance-counters":"enable block performance counters","trellis":"enable trellis blocks for FSM","uhd":"install UHD source and sink blocks","utils":"install scripts to enable viewing and analysis of files produced by flow graphs","vocoder":"enable blocks for audio voice encoders","wavelet":"enable wavelet signal processing blocks","zeromq":"enable zeromq message passing blocks"},"gr-osmosdr":{"bladerf":"Build with Nuand BladeRF support","fcd":"Build with Funcube Dongle support","hackrf":"Build with Great Scott Gadgets HackRF support","iqbalance":"Enable support for I/Q balancing using gr-iqbal","mirisdr":"Build with Mirics MSi2500 + MSi001 SDR support","rtlsdr":"Build with Realtek RTL2832U (rtlsdr) support","uhd":"Build with Ettus Research USRP Hardware Driver support"},"hostapd":{"crda":"Add CRDA support","logwatch":"Install support files for sys-app/logwatch","madwifi":"Add support for madwifi (Atheros chipset)","netlink":"Adding support for using netlink to create VLANs","sqlite":"Adding sqlite support","wps":"Add support for Wi-Fi Protected Setup"},"kismet":{"client":"Build the ncurses-based user interface","pcre":"Build with pcre support","plugin-autowep":"Build the autowep plugin","plugin-btscan":"Build the btscan plugin","plugin-dot15d4":"Build the dot15d4 plugin","plugin-ptw":"Build the ptw plugin","plugin-spectools":"Build the spectools plugin. This uses net-wireless/spectools","plugin-syslog":"Build the syslog plugin.","ruby":"Build extras which are written in ruby, example plugins and the like.","speech":"Audio support using app-accessibility/flite","suid":"Install a setuid root helper binary with limited functionality; this allows running kismet as a normal user, significantly reducing security risks"},"madwifi-ng":{"injection":"Adds support for net-wireless/aircrack-ng aireplay-ng packet injection"},"neard":{"tools":"build and install extra helper utilities"},"openbsc":{"gprs":"Support GPRS via OpenGGSN"},"osmocom-bb":{"transmit":"Enable transmission capabilities."},"pyrit":{"cuda":"Enable CUDA support via net-wireless/cpyrit-cuda","opencl":"Enable OpenCL support via net-wireless/cpyrit-opencl"},"spectools":{"debug":"Build the raw output client for spectools. (for developers)","gtk":"Build the gtk-2 based client for spectools","ncurses":"Build the ncurses based client for spectools"},"ubertooth":{"bluez":"use bluez to support clock following and scanning","dfu":"Install ubertooth-dfu (needed for read/write of firmware)","pcap":"Use libpcap for packet capture and read/write","specan":"Enable the ubertooth spectrum analyzer","ubertooth0-firmware":"Build/install ubertooth0-firmware","ubertooth1-firmware":"Build/install ubertooth1-firmware"},"wepattack":{"john":"Build with app-crypt/johntheripper support"},"wireless-tools":{"multicall":"Build the most commonly used tools as one binary"},"wpa_supplicant":{"ap":"Add support for access point mode","eap-sim":"Add support for EAP-SIM authentication algorithm","fasteap":"Add support for FAST-EAP authentication algorithm","hs2-0":"Add support for 802.11u and Passpoint for HotSpot 2.0","p2p":"Add support for Wi-Fi Direct mode","ps3":"Add support for ps3 hypervisor driven gelic wifi","smartcard":"Add support for smartcards","tdls":"Add support for Tunneled Direct Link Setup (802.11z)","uncommon-eap-types":"Add support for Wi-Fi Protected Setup","wimax":"Add support for Wimax EAP-PEER authentication algorithm","wps":"Add support for Wi-Fi Protected Setup"},"yatebts":{"bladerf":"Build bladeRF transceiver","rad1":"Build RAD1 transceiver","uhd":"Build UHD transceiver","usrp1":"Build USRP1 transceiver"}},"sci-astronomy":{"casacore":{"data":"Installs measures and data (pulls sci-astronomy/casa-data)"},"cpl":{"gasgano":"Enable support for sci-astronomy/gasgano file organizer"},"predict":{"xforms":"Add a \"map\" client which uses the x11-libs/xforms library for its GUI","xplanet":"Project predict data onto world maps generated by x11-misc/xplanet / x11-misc/xearth"},"stellarium":{"sound":"Enable sound support","stars":"Install extra star catalogs"},"wcslib":{"fits":"Enable support for the FITS format through sci-libs/cfitsio","pgplot":"Builds PGBSOX routines, needs sci-libs/pgplot library"}},"sci-biology":{"bioperl":{"db":"Install sci-biology/bioperl-run","network":"Install sci-biology/bioperl-run","run":"Install sci-biology/bioperl-run"},"clustalw-mpi":{"mpi_njtree":"Use MPI (as opposed to serial) code for computing neighbor-joining trees","static_pairalign":"Use static (as opposed to dynamic) scheduling for pair alignments"},"exonerate":{"utils":"Install all utilities"},"fasttree":{"double-precision":"use double precision instead of single-precision floating point (2x memroy required)"},"gmap":{"goby":"Enable support for goby","samtools":"Enable support for samtools"},"goby":{"cpp":"Compile C/C++ API"},"hmmer":{"pvm":"Add support for parallel virtual machine (sys-cluster/pvm)"},"mcl":{"blast":"add support for NCBI BLAST data"},"plink":{"R":"add support R language","webcheck":"add support for online update checking every time the program starts"},"tophat":{"bam":"Compile support for the BAM format"},"ucsc-genome-browser":{"server":"Install genome browser Web application. If this flag is off, only libraries and utilities from the suite are installed."},"yass":{"dmalloc":"Enable debugging with the dmalloc library","lowmem":"Build for environments with low amounts of memory"}},"sci-calculators":{"units":{"units_cur":"Install the units_cur python script that updates currencies"}},"sci-chemistry":{"PyMca":{"matplotlib":"Support for plotting through matplotlib"},"apbs":{"arpack":"Include support for arpack libs","fast":"APBS fast mode (experimental)","fetk":"Include support for FeTK","tools":"Install optional tools"},"avogadro":{"glsl":"Enable glsl features via GLEW."},"ball":{"cuda":"Include cuda support","sql":"Include SQL database support","webkit":"Uses dev-qt/qtwebkit for drawing"},"ccp4":{"arpwarp":"Add binary arp-warp for molecular replacement","balbes":"Install sci-chemistry/balbes"},"chemtool":{"emf":"EMF export support"},"cns":{"aria":"Support patch for sci-chemistry/aria"},"eden":{"double-precision":"More precise calculations at the expense of speed"},"gamess":{"neo":"Enable NEO for nuclear basis support","pax_kernel":"Make this package work on PAX kernels","qmmm-tinker":"Enable tinker qmmm code"},"ghemical":{"openbabel":"Use sci-chemistry/openbabel for file conversions"},"gromacs":{"boost":"Enable external boost library","cuda":"Enable cuda non-bonded kernels","double-precision":"More precise calculations at the expense of speed","make-symlinks":"Create symbolic links for pre-5.0 binary names","mkl":"Use sci-libs/mkl for fft, blas, lapack routines","offensive":"Enable gromacs partly offensive quotes","single-precision":"Single precision version of gromacs (default)","tng":"Enable new trajectory format - tng"},"gsim":{"emf":"Support for .emf export"},"icm":{"32bit":"Automatically generated description for 32bit","64bit":"Automatically generated description for 64bit"},"jmol":{"client-only":"Install the viewer only, no applet files for httpd"},"molequeue":{"client":"Build the client application","server":"Build the serve application","zeromq":"Build with net-libs/zeromq support"},"mopac7":{"gmxmopac7":"Add support library for gromacs"},"oasis":{"minimal":"Restricts functionality on free software"},"openbabel":{"swig":"Use swig to rebuild language bindings."},"pdb2pqr":{"opal":"Add web interface via opal","pdb2pka":"Install experimental pdb2pka interface"},"pymol":{"apbs":"Install the apbs plugin","web":"Install Pymodule needed for web app support"},"raster3d":{"gd":"libgd support for PNG and JPEG output"},"vmd":{"cuda":"Use nvidia cuda toolkit for speeding up computations","gromacs":"Add support for TNG file format","msms":"Add support for MSMS SAS calcualtion tool","povray":"Add support for povray raytracer for HQ images","tachyon":"Add support for tachyon raytracer for HQ images"},"votca-csg":{"extras":"Pull in extra applications from sci-chemistry/votca-csg-apps","gromacs":"Add support for gromacs file formats through sci-chemistry/gromacs","system-boost":"Use system boost (dev-libs/boost) instead of bundled one"},"wxmacmolplt":{"flash":"Add support for flash movie generation using media-libs/ming"}},"sci-electronics":{"geda":{"stroke":"enable mouse gesture support"},"gerbv":{"unit-mm":"Set default unit for coordinates in status bar to mm"},"gspiceui":{"schematics":"Use sci-electronics/geda for schematics editing","waveform":"Use sci-electronics/gwave for waveform display"},"gtkwave":{"fasttree":"Enables experimental Fast SST Tree widget code.","fatlines":"Renders lines as double width in gtkwave.","judy":"Enables Judy array support.","packed":"Enables '#pragma pack' for data arrays (saves memory, costs time)."},"pcb":{"gcode":"gcode file export","gif":"GIF graphics export","jpeg":"JPEG graphics export","m4lib-png":"Enable creating png previews for the m4 library","nelma":"NELMA file export","png":"PNG graphics export","tk":"Build tcl/tk graphical QFP footprint generator","toporouter":"Build toporouter","xrender":"Translucent PCB display for Motif/Lesstif GUI"},"pulseview":{"decode":"Enable decoding of protocols while capturing"},"sigrok-cli":{"decode":"Enable decoding of protocols while capturing"},"splat":{"hires":"Builds additional high resolution application 'rfsplat-hd'."}},"sci-geosciences":{"geocode-glib":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"gmt":{"gdal":"Enable sci-libs/gdal library support","gmtfull":"Full resolution bathymetry database","gmthigh":"Add high resolution bathymetry database","gmttria":"Non GNU triangulation method, more efficient","metric":"Use SI (cm) units instead of US (inches) ones","mex":"Enable compilation of mex supplement which requires Octave/Matlab","octave":"Enable octave support"},"googleearth":{"bundled-libs":"Use bundled libraries."},"gpsd":{"dbus":"export gpsd data over dbus connections","latency_timing":"support latency timing information","ntp":"Enable net-misc/ntp shared memory interface and PPS kernel support for GPS time","shm":"export gpsd over shared memory","sockets":"export gpsd over unix sockets"},"grass":{"gmath":"Enable gmath wrapper for BLAS/Lapack (virtual/blas, virtual/lapack)"},"gshhs":{"data":"Add earth data with sci-geosciences/gshhs-data"},"mapnik":{"gdal":"Enable sci-libs/gdal library support","geos":"Enable sci-libs/geos library support"},"mapserver":{"gdal":"Enable sci-libs/gdal library support","geos":"Enable sci-libs/geos library support","postgis":"Enable dev-db/postgis support","proj":"Enable sci-libs/proj library support (geographic projections)","xslt":"Enable xslt and exslt support xml-mapfile support"},"merkaartor":{"libproxy":"Use net-libs/libproxy for getting the HTTP/HTTPS/SOCKS proxy configuration","webkit":"Enable Webkit browser plugin using dev-qt/qtwebkit"},"osm2pgsql":{"pbf":"Add support for importing the new \"Protocolbuffer Binary Format\""},"qgis":{"bundled-libs":"Use internal copy of x11-libs/qwtpolar","grass":"Add support for sci-geosciences/grass","spatialite":"Enable Spatial DBMS over sqlite dev-db/spatialite"},"qlandkartegt":{"dmtx":"Enable libdmtx support for summarizing waypoints as 2D barcode","gpsbabel":"Enable support for wide range of geodata file formats","gpx-extensions":"Enable support for GPX extensions","mikrokopter":"Enable telemtry with a mikrokopter","rmap":"Enable support for TwoNav RMAP file format"},"viking":{"magic":"Use libmagic to determine mimetypes"},"xtide":{"gps":"Use sci-geosciences/gpsd"}},"sci-libs":{"ViSP":{"demos":"Installs demo programs.","dmtx":"Enables barcode data matrix support.","ogre":"Enables dev-games/ogre support.","ois":"Enables dev-games/ois support via ogre.","opencv":"Enables media-libs/opencv support.","tutorials":"Installs tutorials.","zbar":"Enables barcodes reading."},"acml":{"gfortran":"Fetch and install acml compiled with GNU gfortran","ifc":"Fetch and install acml compiled with Intel Fortran Compiler (dev-lang/ifc)","int64":"Install the 64 bits integer library"},"adolc":{"sparse":"Add support for sparse matrix algebra with sci-libs/colpack"},"armadillo":{"arpack":"Link with sci-libs/arpack libraries for eigen decomposition","atlas":"Link with sci-libs/atlas libraries for cblas and clapack","mkl":"Use matrix allocation from the Intel MKL sci-libs/mkl","tbb":"Use matrix allocation from the Threads Building Blocks dev-cpp/tbb"},"arprec":{"qd":"Use sci-libs/qd for quad-double datatype"},"avogadrolibs":{"static-plugins":"build all plugins statically into main plugin modules","vtk":"include vtk support"},"ceres-solver":{"cxsparse":"Enable simple support for sparse matrix algebra from sci-libs/cxsparse with no LAPACK dependencies","gflags":"Use dev-cpp/gflags for flag parsing","protobuf":"Use dev-libs/protobuf to encode structured data","schur":"Enable fixed-size schur specializations (disable if binary size is an issue)","sparse":"Enable support for sparse matrix algebra with various packages from SuiteSparse"},"cfitsio":{"tools":"Build execs fpack, funpack, imcopy, fitscopy, listhead"},"cgnslib":{"legacy":"Enable or disable building legacy code (3.0 compatible)"},"chemkit":{"applications":"Build also applications not only the libraries"},"cholmod":{"cuda":"Use nvidia cuda toolkit for speeding up computations","metis":"Enable the Partition module to cholmod using sci-libs/metis","supernodal":"Enable the Supernodal module (needs virtual/lapack)"},"coinor-bonmin":{"glpk":"Undocumented USE"},"coinor-clp":{"glpk":"Enable GNU Linear Programming Kit sci-mathematics/glpk support","metis":"Enable partitioning with sci-libs/metis","mumps":"Enable sci-libs/mumps support","sparse":"Enable support for sparse matrix with sci-libs/cholmod"},"coinor-osi":{"glpk":"Enable GNU Linear Programming Kit sci-mathematics/glpk support"},"coinor-symphony":{"glpk":"Enable GNU Linear Programming Kit sci-mathematics/glpk support"},"coinor-utils":{"glpk":"Enable GNU Linear Programming Kit sci-mathematics/glpk support"},"fftw":{"float":"Link default library to single precision instead of double (symlinks only and fftw-2.1)","quad":"Build quadruple precision lib","zbus":"Adds support for ZBus cycle-counter of mips"},"flann":{"cuda":"Enable support for nVidia CUDA","octave":"Add bindings for sci-mathematics/octave"},"gdal":{"armadillo":"Use sci-libs/armadillo for faster TPS transform computation","aux_xml":"Enable Portable Auxilliary Metadata generation","fits":"Enable support for NASA's sci-libs/cfitsio library","geos":"Add support for geometry engine (sci-libs/geos)","gml":"Enable support for dev-libs/xerces-c C++ API","hdf5":"Add support for the Hierarchical Data Format v5 (sci-libs/hdf5)","mdb":"Enable support for Microsoft Access database","ogdi":"Enable support for the open geographic datastore interface (sci-libs/ogdi)","opencl":"Enable OpenCL support","spatialite":"Enable Spatial DBMS over sqlite dev-db/spatialite","xls":"Add the dev-libs/freexl library for xls import support"},"grib_api":{"jasper":"Use media-libs/jasper instead of media-libs/openjpeg for JPEG 2000 support"},"gsl":{"cblas-external":"Link gsl with external cblas provided by (virtual/cblas) instead of shipped internal version"},"hdf5":{"fortran2003":"Enable new features that require Fortran 2003 (http://www.hdfgroup.org/HDF5/doc/fortran/NewFeatures_F2003.pdf)"},"ipopt":{"hsl":"hsl","mumps":"Enable sci-libs/mumps support"},"lemon":{"coin":"Enable the coinor-clp and coinor-cbc graph algorithms","glpk":"Enable GNU Linear Programming Kit sci-mathematics/glpk support","tools":"Build additional tools"},"libccd":{"double":"Use double precision floats."},"libghemical":{"mopac7":"Use sci-chemistry/mopac7 for semi-empirical calculations","mpqc":"Use sci-chemistry/mpqc for quantum-mechanical calculations"},"libsigrok":{"ftdi":"Enable drivers that need libftdi","serial":"Enable drivers that are serial (RS232) based"},"libsvm":{"tools":"Install python based tool scripts"},"linux-gpib":{"firmware":"Install firmware","isa":"Build ISA kernel modules; from 3.12 on the setting is ignored and the decision based on the kernel configuration"},"lis":{"quad":"Enable quadruple precision operations","saamg":"Build the Smoothed Aggregation Algebraic MultiGrid preconditioner"},"magma":{"fermi":"Compile for GPU NVIDIA Fermi family (2.x cards)","kepler":"Compile for GPU NVIDIA Kepler family (GF 6xx cards)"},"mathgl":{"hdf":"Add support for the Hierarchical Data Format v.4 sci-libs/hdf","octave":"Add bindings for sci-mathematics/octave"},"matio":{"sparse":"Extend formats for sparse matrix (not matlab)"},"mkl":{"fortran95":"Installs the BLAS/LAPACK FORTRAN95 static libraries","int64":"Installs the 64 bits integer libraries"},"mpir":{"cpudetection":"Enables runtime cpudetection (useful for bindist, compatability on other CPUs)"},"mumps":{"metis":"Enable matrix ordering with METIS (sci-libs/metis, sci-libs/parmetis)","scotch":"Enable matrix ordering with sci-libs/scotch"},"netcdf":{"dap":"Support for remote data access with the built-in OPeNDAP client","hdf":"Add support for the Hierarchical Data Format v.4 sci-libs/hdf","tools":"Build the utilities nccopy, ncgen and ncdump"},"nlopt":{"octave":"Add plugin for sci-mathematics/octave"},"octomap":{"dynamicEDT3D":"Build and install dynamicEDT3D library: A library for incrementally updatable Euclidean distance transforms in 3D."},"opencascade":{"freeimage":"Enable support for image i/o via media-libs/freeimage","gl2ps":"Use gl2ps PostScript printing library","tbb":"tEnable multithreading with the Intel Threads Building Block dev-cpp/tbb"},"openfoam":{"opendx":"Install opendx visualisation tool","paraview":"Enable support for paraview library","src":"Install source files"},"openmm":{"cuda":"enable cuda back-end","opencl":"enable opencl back-end","wrappers":"build wrappers for Python, C and Fortran"},"orocos_kdl":{"models":"Build models for some well known robots."},"pcl":{"cuda":"Adds support for NVIDIA CUDA.","openni":"Adds support for Kinect-like 3D sensors devices with dev-libs/OpenNI.","openni2":"Adds support for Kinect-like 3D sensors devices with dev-libs/OpenNI2 (should be preferred over openni).","pcap":"Adds pcap file capabilities in some drivers.","qhull":"Adds convex-hull operation support via media-libs/qhull.","tutorials":"Builds and installs tutorials.","vtk":"Adds support for VTK-Visualizations."},"plplot":{"ada":"Add bindings for the ADA programming language","dynamic":"Build with dynamic drivers","octave":"Add bindings for sci-mathematics/octave","pdl":"Add bindings for dev-perl/PDL","qhull":"Add bindings for media-libs/qhull","shapefile":"Enable support for ESRI shapefiles"},"rtabmap":{"openni2":"Adds support for Kinect-like 3D sensors devices with dev-libs/OpenNI2."},"scikits_image":{"freeimage":"Enable support for image i/o via media-libs/freeimage","pyamg":"Enable support for algebraic solvers via dev-python/pyamg"},"scipy":{"sparse":"Adds support for sparse solving with sci-libs/umfpack"},"scotch":{"int64":"Build the 64 bits integer library (needed for > 2^31 vertices)","tools":"Build and install extra exec tools"},"shogun":{"R":"Enable support for dev-lang/R","arpack":"Enable support for sci-libs/arpack","eigen":"Enable support for matrix package dev-cpp/eigen","glpk":"Enable support for sci-mathematics/glpk","json":"Enable support for parsing JSON format","lpsolve":"Enable support for Linear Programming Solver","nlopt":"Enable support non linear optimization from sci-libs/nlopt","octave":"Enable support for sci-mathematics/octave","snappy":"Enable support for snappy compression","superlu":"Enable support for sci-libs/superlu"},"silo":{"silex":"Build silex data browser"},"spqr":{"metis":"Use sci-libs/metis or sci-libs/parmetis for partitioning","tbb":"Enable multithreading with the Intel Threads Building Block dev-cpp/tbb"},"spr":{"root":"Add sci-physics/root graphics and i/o support"},"ssm":{"ccp4":"Link superpose with libccp4"},"suitesparse":{"cuda":"Enable nvidia cuda toolkit for speeding up computations","metis":"Enable the Partition module to cholmod using sci-libs/metis","tbb":"Enable multithreading with the Intel Threads Building Block dev-cpp/tbb"},"taucs":{"cilk":"Enable multithreading using dev-lang/cilk)"},"umfpack":{"cholmod":"Use sci-libs/cholmod for matrix ordering"},"votca-tools":{"system-boost":"Use system boost (dev-libs/boost) instead of bundled one"},"vtk":{"R":"Enable support for dev-lang/R","all-modules":"Build all modules","boost":"Add support for boost","cg":"Use nvidia's cg shaders","gdal":"Support for gdal formated data","imaging":"Building Imaging modules","json":"Support for json formated data","kaapi":"Use sci-libs/kaapi to handle smp support","offscreen":"Offscreen rendering through OSMesa","rendering":"Building Redering modules","tbb":"Use dev-cpp/tbb to handle smp support","views":"Building Views modules","web":"Install web component","xdmf2":"Support for xdmf2 formated data"},"xkaapi":{"blas":"Kaapi BLAS tasks for PLASMA","gpu":"Build library for gpu threading"}},"sci-mathematics":{"Macaulay2":{"optimization":"Accept upstream's choices for -O option, i.e. -O3 almost everywhere."},"agda":{"cpphs":"Use cpphs instead of cpp.","epic":"Add support for the epic compiler.","stdlib":"Install the standard library."},"agda-stdlib":{"ffi":"Install agda-lib-ffi for compilation using the MAlonzo backend"},"bertini":{"optimization":"Accept upstream's choices for -O option."},"cgal":{"mpfi":"Enable support for multiple recision interval arithmetic via sci-mathematics/mpfi"},"coq":{"camlp5":"Build using camlp5. This is required for some plugins like Ssreflect."},"cvc3":{"isabelle":"Add integration support for the Isabelle/HOL theorem prover.","zchaff":"Use the SAT solver zchaff whose copyright is owned by Princeton University and is more restrictive (see zchaff license)."},"e":{"isabelle":"Add integration support for the Isabelle/HOL theorem prover."},"flint":{"gc":"Enable garbage collection support via dev-libs/boehm-gc","ntl":"Build NTL interface"},"form":{"devref":"Build and install developers reference","doxygen":"Build and install API documentation"},"freemat":{"volpack":"Add volume rendering via media-libs/volpack","vtk":"Add 3D capabilities via sci-libs/vtk"},"fricas":{"clisp":"Add support for GNU CLISP (dev-lisp/clisp)","clozurecl":"Add support for Clozure Common Lisp (dev-lisp/clozurecl)","cmucl":"Add support for CMU Common Lisp (dev-lisp/cmucl)","ecls":"Add support for Embeddable Common Lisp (dev-lisp/ecls)","gcl":"Add support for GNU Common Lisp (dev-lisp/gcl)","sbcl":"Add support for Steel Bank Common Lisp (dev-lisp/sbcl)"},"geomview":{"motionaveraging":"Enable experimental motion averaging technique"},"gmp-ecm":{"custom-tune":"Improve performance of some operations by selecting machine-specific defaults","gwnum":"Use GWNum lib where possible"},"gretl":{"R":"Enable support for dev-lang/R"},"gsl-shell":{"fox":"Build a x11-libs/fox GUI"},"isabelle":{"CCL":"CCL (Classical Computational Logic)","CTT":"CTT (Constructive Type Theory) is an extensional version of Martin-Löf's Type Theory.","Cube":"Cube (The Lambda Cube)","FOL":"FOL (Many-sorted First-Order Logic) provides basic classical and intuitionistic first-order logic. It is polymorphic.","FOLP":"FOLP (FOL with Proof Terms)","HOL":"(Higher-Order Logic) is a version of classical higher-order logic resembling that of the HOL System.","LCF":"LCF (Logic of Computable Functions)","Pure":"Pure is the basis for all object-logics.","Sequents":"Sequents (first-order, modal and linear logics)","ZF":"ZF (Set Theory) offers a formulation of Zermelo-Fraenkel set theory on top of FOL.","graphbrowsing":"Generate theory browsing information, including HTML documents that show a theory's definition, the theorems proved in its ML file and the relationship with its ancestors and descendants.","ledit":"Use ledit for the isabelle tty line editor","pide":"Build Isabelle/jEdit Prover IDE (PIDE).","proofgeneral":"Add support for the app-emacs/proofgeneral proof assistant front end.","readline":"Use readline (rlwrap) for the isabelle tty line editor"},"kodkodi":{"isabelle":"Add integration support for the Isabelle/HOL theorem prover."},"maxima":{"clisp":"Compile maxima with GNU CLISP (dev-lisp/clisp)","clozurecl":"Compile maxima with Clozure Common Lisp (dev-lisp/clozurecl)","cmucl":"Compile maxima with CMU Common Lisp (dev-lisp/cmucl)","ecls":"Compile maxima with Embeddable Common Lisp (dev-lisp/ecls)","gcl":"Compile maxima with GNU Common Lisp (dev-lisp/gcl)","sbcl":"Compile maxima with Steel Bank Common Lisp (dev-lisp/sbcl)"},"minisat":{"extended-solver":"Build extended version of SAT solver with additional features."},"msieve":{"ecm":"Enable support for the GMP-ECM library"},"normaliz":{"extras":"Install sci-mathematics/Macaulay2 and sci-mathematics/singular packages as shipped by upstream"},"nusmv":{"minisat":"Enable support for MiniSat"},"octave":{"glpk":"Add support for sci-libs/glpk for linear programming","gui":"Enable the graphical user interface","jit":"(EXPERIMENTAL) enable JIT compiler","qhull":"Add support for sci-libs/qhull, to allow `delaunay', `convhull', and related functions","qrupdate":"Add support for sci-libs/qrupdatefor QR and Cholesky update functions","sparse":"Add enhanced support for sparse matrix algebra with SuiteSparse"},"pari":{"data":"Add additional data (elldata, galdata, seadata, nftables)"},"polymake":{"bliss":"Enable sci-libs/bliss interface for graph and face lattice isomorphism computations.","cdd":"Enable sci-libs/cddlib interface for convex hull computations (Should be kept enabled).","group":"Build extension for dealing with permutation groups and symmetric objects.","libnormaliz":"Build the bundled extension for lattice related computations.","libpolymake":"Build the polymake library to build applications using the C++ interface.","lrs":"Enable sci-libs/lrslib interface for convex hull computations.","ppl":"Enable dev-libs/ppl interface for convex hull computations.","singular":"Enable the interface to sci-mathematics/singular for ideal related computations."},"rstudio":{"server":"Build and install the RStudio server"},"singular":{"boost":"Compile against external boost headers (dev-libs/boost)"},"spass":{"isabelle":"Add integration support for the Isabelle/HOL theorem prover."},"unuran":{"prng":"Use sci-mathematics/prng library","rngstreams":"Use sci-mathematics/rngstreams library"},"yacas":{"server":"Build the network server version"},"yafu":{"sieve":"Use msieve for the sieving steps of NFS"}},"sci-misc":{"boinc":{"cuda":"Use nvidia cuda toolkit for speeding up computations. NOTE: works only for subset of nvidia graphic cards so make sure your card is supported before opening bug about it."},"h5utils":{"hdf":"Build hdf to hdf5 (and vice-versa) converter","octave":"Build Octave plugins"},"nco":{"dap":"Support for remote data access with the NETCDF DAP client","ncap2":"Build next generation netcdf arithmetic processor (needs dev-java/antlr)","udunits":"Add sci-libs/udunits files support"}},"sci-physics":{"bullet":{"double-precision":"Build libraries in double precision","extras":"Build additional libraries"},"cernlib-montecarlo":{"herwig":"Build Herwig internal event generator, newer version available in sci-physics/herwig"},"clhep":{"exceptions":"Enable zoom exceptions for user intervention"},"espresso":{"cuda":"Enable cuda support","examples":"Installs the examples","packages":"Installs extra subpackages"},"fastjet":{"cgal":"Use sci-mathematics/cgal instead of bundled algorithms","plugins":"Build all standard and C++ plugins"},"geant":{"data":"Add a lot of standard physics data files for geant4","dawn":"Add support for media-gfx/dawn (3D postscript rendering)","gdml":"Enable geometry markup language for xml","geant3":"Add compatibility for geant321 to geant4","granular":"Produce many small libraries instead of global ones","inventor":"Add support for Open Inventor SGI toolkit via Coin3D","raytracerx":"Enable raytracing for physics events","vrml":"Enable output of geant4 in vrml formats"},"hepmc":{"cm":"Build with cm instead of default mm for length units","gev":"Build with GeV instead of default MeV for momentum units"},"hoomd-blue":{"cuda":"Enable cuda non-bonded kernels"},"lammps":{"lammps-memalign":"Enables the use of the posix_memalign() call instead of malloc() when large chunks or memory are allocated by LAMMPS","package-dipole":"point dipole particles","package-meam":"modified EAM potential","package-rigid":"rigid bodies"},"lhapdf":{"octave":"Add bindings for sci-mathematics/octave"},"meep":{"mpb":"Enable build against sci-physics/mpb"},"pythia":{"hepmc":"Adds support for High Energy Physics Monte Carlo Generators sci-physics/hepmc"},"root":{"c++11":"Build ROOT using the C++11 standard","c++14":"Build ROOT using the C++14 standard","clarens":"Build the Clarens and PEAC plug-ins, to use in a GRID enabled analysis","fits":"Support for images and data from FITS files with sci-libs/cfitsio","htmldoc":"Generate html documentation","http":"Enable http server support including but not limited to fastcgi support","math":"Build all math related libraries plugins, needs sci-libs/gsl","pythia6":"Build the interface for sci-physics/pythia version 6.x","pythia8":"Build the interface for sci-physics/pythia version 8.x","reflex":"Build the reflection database for the C++ interpreter","xrootd":"Build the interface for net-libs/xrootd"}},"sci-visualization":{"fityk":{"nlopt":"Enable optimization with sci-libs/nlopt"},"gnuplot":{"bitmap":"Enable dot-matrix printers and pbm terminal","gd":"Add support for media-libs/gd. Needed for GIF, JPEG, and PNG image output.","libcerf":"Enable special functions from sci-libs/libcerf","thin-splines":"Enable thin plate splines"},"gwyddion":{"fits":"Enable FITS image import via sci-libs/cfitsio","sourceview":"Enable support for x11-libs/gtksourceview"},"opendx":{"cdf":"Add support for sci-libs/cdf data exchange format","hdf":"Add support for the Hierarchical Data Format (sci-libs/hdf)"},"paraview":{"boost":"Enable the usage of dev-libs/boost","cg":"Add support for nvidia's cg shaders","coprocessing":"Enable the coprocessing infrastructure which is mainly useful in the context of clusters","development":"Install development files including headers","nvcontrol":"Add NVCONTROL support for OpenGL options","plugins":"Build and install additional plugins"},"veusz":{"emf":"Add FITS format via dev-python/pyemf","fits":"Add FITS format via dev-python/astropy","minuit":"Use Minuit during fitting viadev-python/pyminuit","vo":"Add Virtual Observatory tools via dev-python/astropy"},"visit":{"cgns":"Builds the reader for the CFD General Notation System file format.","silo":"Adds support for reading .silo files."}},"sec-policy":{"selinux-base":{"open_perms":"Enable the open permissions for file object classes (SELinux policy capability).","peer_perms":"Enable the labeled networking peer permissions (SELinux policy capability).","ubac":"Enable User Based Access Control (UBAC) in the SELinux policy","unconfined":"Enable support for the unconfined SELinux module"},"selinux-base-policy":{"unconfined":"Enable support for the unconfined SELinux policy module"}},"sys-apps":{"accountsservice":{"systemd":"Use sys-apps/systemd instead of sys-auth/consolekit for session tracking"},"acl":{"nfs":"add support for NFS acls"},"baselayout-prefix":{"prefix-chaining":"install in a chained Prefix environment"},"busybox":{"make-symlinks":"Create all the appropriate symlinks in /bin and /sbin.","math":"Enable math support in gawk (requires libm)","mdev":"Create the appropriate symlink in /sbin and install mdev.conf and support files","sep-usr":"Support a separate /usr without needing an initramfs by booting with init=/ginit","static":"Make the system rescue shell (/bin/bb) static so you can recover even when glibc is broken","systemd":"Support systemd"},"coreutils":{"multicall":"Build all tools into a single `coreutils` program akin to busybox to save space"},"dbus":{"systemd":"Build with sys-apps/systemd at_console support"},"dmtcp":{"fast":"Enable experimental performance options such as mmap allocator.","trace":"Enable ptrace support (only valid with debug enabled)."},"dstat":{"wifi":"Enable wireless network functions"},"elfix":{"ptpax":"Enable PT_PAX_FLAGS support.","xtpax":"Enable XATTR_PAX_FLAGS support."},"entropy-server":{"matter":"Pull in app-admin/matter"},"etckeeper":{"bazaar":"Support dev-vcs/bzr based repository","cron":"Install cron script"},"flashrom":{"atahpt":"Highpoint (HPT) ATA/RAID controller support","bitbang_spi":"Bitbanging SPI infrastructure","buspirate_spi":"Enable Bus Pirate SPI programmer","dediprog":"Dediprog SF100 support","drkaiser":"Enable Dr. Kaiser programmer","dummy":"Enable dummy tracing","ft2232_spi":"Enable ftdi programmer, flashing through FTDI/SPI USB interface","gfxnvidia":"Enable NVIDIA programmer","internal":"Enable internal/onboard support","linux_spi":"Enable support for Linux userspace spidev interface","nic3com":"Enable 3Com NIC programmer","nicintel":"Support for Intel NICs","nicintel_spi":"Support for SPI on Intel NICs","nicnatsemi":"Support for National Semiconductor NICs","nicrealtek":"Support for Realtek NICs","ogp_spi":"Enable support for OGP (Open Graphics Project) SPI flashing","pony_spi":"Enable support for SI-Prog like hardware by Lancos","rayer_spi":"RayeR SPIPGM hardware support","satamv":"Enable programmer for Marvell SATA controllers","satasii":"Enable programmer for SiI SATA controllers","serprog":"Enable Serial Flasher programmer","tools":"Install additional tools","usbblaster":"Enable support for Altera USB-Blaster dongles","wiki":"Enable wiki informations, like supported devices etc."},"gawk":{"mpfr":"use mpfr for high precision arithmetic (-M / --bignum)"},"gnome-disk-utility":{"fat":"Include FAT16/FAT32 support (sys-fs/dosfstools)"},"hwdata-gentoo":{"binary-drivers":"Adds support for ATI/NVIDIA binary drivers"},"hwids":{"net":"Install the oui.txt and iab.txt databases","pci":"Install the pci.ids database","udev":"Install hwdb.d rules for udev","usb":"Install the usb.ids database"},"hwloc":{"cuda":"Enable CUDA device discovery","gl":"Enable GL display device discovery (NVCtrl)","numa":"Add support for numa memory allocation","opencl":"Enable OpenCL device discovery (AMD only)","pci":"Enable PCI device discovery using libpci","plugins":"Build hwloc components as plugins so that the hwloc core library does not directly depend on their dependencies (for instance the libpci library)"},"iotools":{"make-symlinks":"Generate sub-command symlinks to iotools -- note that a lot are simple like \"xor\""},"ipmitool":{"openipmi":"Use the system OpenIPMI implementation."},"iproute2":{"berkdb":"build programs that use berkdb (just arpd)","iptables":"include support for iptables filtering"},"irqbalance":{"numa":"Support balancing IRQs across NUMA nodes"},"kexec-tools":{"booke":"Include support for Book-E memory management","lzma":"Enables support for LZMA compressed kernel images","xen":"Enable extended xen support"},"kmod":{"tools":"Install module loading/unloading tools."},"lm_sensors":{"sensord":"Enable sensord - a daemon that can be used to periodically log sensor readings from hardware health-monitoring chips"},"memtest86":{"serial":"Compile with serial console support"},"memtest86+":{"floppy":"Install a script to create floppy disks containing memtest86+ binaries.","serial":"Compile with serial console support"},"moreutils":{"perl":"Install scripts written in Perl"},"net-tools":{"old-output":"use old ifconfig output style (useful for when new output breaks scripts)"},"openrc":{"audit":"enable support for Linux audit subsystem","netifrc":"enable Gentoo's network stack (net.* scripts)","newnet":"enable the new network stack (experimental)","tools":"build optional tools"},"pacman":{"gpg":"Support verifying packages signed with GPG using app-crypt/gpgme"},"paludis":{"pbins":"Enable binary package support. Adds dependency upon app-arch/libarchive","pink":"Use a less boring colourscheme than the default","portage":"Enable experimental support for Portage configuration formats","prebuilt-documentation":"Use pre-built documentation","python-bindings":"Enable Python bindings. Requires a lot of RAM to build (~700Mbytes per job) and adds a dependency upon dev-libs/boost","ruby-bindings":"Enable Ruby bindings.","search-index":"Enable cave search --index. Requires sqlite.","visibility":"Enable visibility support (g++ >=4.1)"},"pciutils":{"dns":"Enable support for querying the central database of PCI IDs using DNS","kmod":"Enable sys-apps/kmod support for the -k switch in lspci command","zlib":"Support compressed pci.ids database"},"pcmciautils":{"staticsocket":"Add support for static sockets"},"pcsc-lite":{"libusb":"Use dev-libs/libusb detection to hotplug new smartcard readers. This flag should only be enabled if you're running a non-Linux kernel or you don't want to use sys-fs/udev.","policykit":"Uses sys-auth/polkit to restrict access to smartcard readers or smartcars to given users.","udev":"Use sys-fs/udev rules to handle devices' permissions and hotplug support. Unless you know what you're doing do not disable this flag on Linux kernels. This is provided as an option for completeness."},"pcsc-tools":{"network-cron":"Monthly cronjob the update-smartcard_list script"},"pkgcore":{"doc":"Build and install API docs."},"policycoreutils":{"audit":"Enable support for sys-process/audit and use the audit_* functions (like audit_getuid instead of getuid())"},"portage":{"epydoc":"Build html API documentation with epydoc.","ipc":"Use inter-process communication between portage and running ebuilds.","pypy2_0":"Use pypy-c2.0 as Python interpreter.","python2":"Use python2 as Python interpreter.","python3":"Use python3 as Python interpreter.","xattr":"Preserve extended attributes (filesystem-stored metadata) when installing files. Usually only required for hardened systems."},"proot":{"care":"Build dynamic CARE binary (more info - http://reproducible.io/)"},"pyrenamer":{"music":"Enable support for renaming music"},"qingy":{"consolekit":"Enable native consolekit support","opensslcrypt":"Encrypt communications between qingy and its GUI using dev-libs/openssl"},"razercfg":{"pm-utils":"Installs the pm-utils hooks for suspend/resume and requires sys-power/pm-utils","qt4":"Installs a qt UI. Requires dev-python/pyside"},"roccat-tools":{"lua":"Build support for Lua scripting for RyosMKPro ripple effects"},"rsbac-admin":{"rklogd":"Enabled deprecated RSBAC kernel logger"},"s390-tools":{"fuse":"build cmsfs-fuse to read files stored on a z/VM CMS disk","zfcpdump":"build the kernel disk dumping utility"},"shadow":{"audit":"Enable support for sys-process/audit"},"smartmontools":{"minimal":"Do not install the monitoring daemon and associated scripts."},"superiotool":{"pci":"Support for PCI-attached \"Super I/Os\" (e.g. in VIA VT82686A/B)."},"systemd":{"apparmor":"Enable AppArmor support","audit":"Enable support for sys-process/audit","cryptsetup":"Enable cryptsetup tools (includes unit generator for crypttab)","curl":"Enable support for uploading journals; required to build systemd-import/systemd-pull","elfutils":"Enable coredump stacktraces in the journal","firmware-loader":"Enable user-space firmware loader (for kernels prior to 3.8)","gcrypt":"Enable sealing of journal files using gcrypt; required to build systemd-import/systemd-pull","gudev":"enable libudev gobject interface","http":"Enable embedded HTTP server in journald","importd":"Enable import daemon","kdbus":"Connect to kernel dbus (KDBUS) instead of userspace dbus if available","kmod":"Enable kernel module loading via sys-apps/kmod","lz4":"Enable lz4 compression for the journal","nat":"Enable support for network address translation in networkd","qrcode":"Enable qrcode output support in journal","sysv-utils":"Install sysvinit compatibility symlinks and manpages for init, telinit, halt, poweroff, reboot, runlevel, and shutdown","terminal":"Enable experimental userspace virtual terminal support","vanilla":"Disable Gentoo-specific behavior and compatibility quirks","xkb":"Validate XKB keymap in logind"},"tcp-wrappers":{"netgroups":"Support matching NIS (host) netgroup names via the @netgroup syntax (if you don't know what this means, you most likely do not need it)"},"timer_entropyd":{"debug":"Enable printf debugging and logging to the syslog at DEBUG level"},"tuxonice-userui":{"fbsplash":"Add support for framebuffer splash"},"ucspi-ssl":{"tls":"Add TLS support (see also http://www.suspectclass.com/~sgifford/ucspi-tls/)"},"usb_modeswitch":{"jimtcl":"Use dev-lang/jimtcl instead of dev-lang/tcl for smaller memory footprint"},"usermode-utilities":{"fuse":"Build tools (currently umlmount) needing fuse"},"util-linux":{"caps":"build setpriv helper (run programs with diff capabilities)","cramfs":"build mkfs/fsck helpers for cramfs filesystems","cytune":"build cytune for Cyclades-Z multiport serial cards","fdformat":"build fdformat (floppy disk format)","pam":"build runuser helper","suid":"install mount/umount as setuid so non-root users may mount/umount devices, and wall/write as setgid so non-root users can notify other users","tty-helpers":"install the mesg/wall/write tools for talking to local users"},"v86d":{"x86emu":"Use x86emu for Video BIOS calls"},"watchdog":{"nfs":"enable support for checking nfs mounts"},"xinetd":{"rpc":"support RPC services"}},"sys-auth":{"consolekit":{"policykit":"Use the PolicyKit framework (sys-auth/polkit) to get authorization for suspend/shutdown.","systemd-units":"Install systemd unit files to replace the modern functionality of logind in sys-apps/systemd. Not recommended."},"fingerprint-gui":{"upekbsapi":"Add UPEK BSAPI drivers for identify functions on some readers"},"munge":{"gcrypt":"Use libgcrypt instead of openssl"},"nss-mdns":{"search-domains":"Honour search domains from /etc/resolv.conf (see bug #201948 for possible side effects)"},"nss-pam-ldapd":{"utils":"Install the command-line utilities"},"oath-toolkit":{"pam":"Build PAM module for pluggable login authentication for OATH","pskc":"Build tools & library for the Portable Symmetric Key Container (PSKC) format per RFC6030"},"pam_mktemp":{"prevent-removal":"If supported, set EXT2_APPEND_FL on /tmp/.private to prevent temporary directories from being removed"},"pam_mysql":{"openssl":"Use OpenSSL for md5 and sha1 support"},"pam_pkcs11":{"nss":"Use Mozilla NSS (dev-libs/nss) as provider for PKCS#11 access, rather than using OpenSSL with a custom implementation of the PKC#11 protocol.","pcsc-lite":"Build the card_eventmanager binary used to detect card removal and lock the sessions. This needs sys-apps/pcsc-lite."},"pambase":{"consolekit":"Enable pam_ck_connector module on local system logins. This allows for console logins to make use of ConsoleKit authorization.","cracklib":"Enable pam_cracklib module on system authentication stack. This produces warnings when changing password to something easily crackable. It requires the same USE flag to be enabled on sys-libs/pam or system login might be impossible.","debug":"Enable debug information logging on syslog(3) for all the modules supporting this in the system authentication and system login stacks.","gnome-keyring":"Enable pam_gnome_keyring module on system login stack. This enables proper Gnome Keyring access to logins, whether they are done with the login shell, a Desktop Manager or a remote login systems such as SSH.","minimal":"Disables the standard PAM modules that provide extra information to users on login; this includes pam_tally (and pam_tally2 for Linux PAM 1.1 and later), pam_lastlog, pam_motd and other similar modules. This might not be a good idea on a multi-user system but could reduce slightly the overhead on single-user non-networked systems.","mktemp":"Enable pam_mktemp module on system auth stack for session handling. This module creates a private temporary directory for the user, and sets TMP and TMPDIR accordingly.","nullok":"Enable the nullok option with the pam_unix module. This allows people to login with blank passwords.","pam_krb5":"Enable pam_krb5 module on system auth stack, as an alternative to pam_unix. If Kerberos authentication succeed, only pam_unix will be ignore, and all the other modules will proceed as usual, including Gnome Keyring and other session modules. It requires sys-libs/pam as PAM implementation.","pam_ssh":"Enable pam_ssh module on system auth stack for authentication and session handling. This module will accept as password the passphrase of a private SSH key (one of ~/.ssh/id_rsa, ~/.ssh/id_dsa or ~/.ssh/identity), and will spawn an ssh-agent instance to cache the open key.","passwdqc":"Enable pam_passwdqc module on system auth stack for password quality validation. This is an alternative to pam_cracklib producing warnings, rejecting or providing example passwords when changing your system password. It is used by default by OpenWall GNU/*/Linux and by FreeBSD.","securetty":"Enable pam_securetty module in the login stack. Not generally relevant anymore as the login stack only refers to local logins and local terminals imply secure access in the first place.","sha512":"Switch Linux-PAM's pam_unix module to use sha512 for passwords hashes rather than MD5. This option requires >=sys-libs/pam-1.0.1 built against >=sys-libs/glibc-2.7, if it's built against an earlier version, it will silently be ignored, and MD5 hashes will be used. All the passwords changed after this USE flag is enabled will be saved to the shadow file hashed using SHA512 function. The password previously saved will be left untouched. Please note that while SHA512-hashed passwords will still be recognised if the USE flag is removed, the shadow file will not be compatible with systems using an earlier glibc version.","systemd":"Use pam_systemd module to register user sessions in the systemd control group hierarchy."},"polkit":{"systemd":"Use sys-apps/systemd instead of sys-auth/consolekit for session tracking"},"sssd":{"acl":"Build and use the cifsidmap plugin","augeas":"Build internal configuration library","autofs":"Build helper to let net-fs/autofs use sssd provided information","locator":"Install sssd's Kerberos plugin","manpages":"Build man pages with dev-libs/libxslt","netlink":"Add support for netlink protocol via dev-libs/libnl","nfsv4":"Add support for the nfsv4 idmapd plugin provided by net-libs/libnfsidmap","ssh":"Build helper to let net-misc/openssh use sssd provided information","sudo":"Build helper to let app-admin/sudo use sssd provided information"},"ykpers":{"consolekit":"Use sys-auth/consolekit and virtual/udev to allow access to the YubiKey HID device to the console user."}},"sys-block":{"fio":{"aio":"Enable AIO ioengine","glusterfs":"Enable GlusterFS gfapi support via sys-cluster/glusterfs","gnuplot":"Install tools for generating gnuplots","numa":"Enable numa support","rbd":"Enable Rados block device support via sys-cluster/ceph","rdma":"Enable infiniband support via sys-infiniband/librdmacm"},"gparted":{"btrfs":"Include Btrfs support (sys-fs/btrfs-progs)","dmraid":"Support for dmraid devices, also known as ATA-RAID, or Fake RAID.","f2fs":"Include F2FS support (sys-fs/f2fs-tools)","fat":"Include FAT16/FAT32 support (sys-fs/dosfstools)","hfs":"Include HFS support (sys-fs/hfsutils)","jfs":"Include JFS support (sys-fs/jfsutils)","mdadm":"Support for Linux software RAID.","ntfs":"Include NTFS support (sys-fs/ntfsprogs)","reiser4":"Include ReiserFS4 support (sys-fs/reiser4progs)","reiserfs":"Include ReiserFS support (sys-fs/reiserfsprogs)","xfs":"Include XFS support (sys-fs/xfsprogs, sys-fs/xfsdump)"},"parted":{"debug":"Enable debugging as encouraged by upstream: [The default configuration] includes --enable-debug (by default), which contains many assertions. Obviously, these \"waste\" space, but in the past, they have caught potentially dangerous bugs before they would have done damage, so we think it's worth it. Also, it means we get more bug reports ;)","device-mapper":"Enable device-mapper support from sys-fs/lvm2 in parted"},"partimage":{"nologin":"Do not include login support when connecting partimaged"},"sas2ircu":{"efi":"Install EFI variant as well"},"sas3ircu":{"efi":"Install EFI variant as well"},"tgt":{"fcoe":"Add support for FCoE protocol","fcp":"Add support for new FC protocol","ibmvio":"Add support for IBM Virtual I/O"}},"sys-boot":{"grub":{"device-mapper":"Enable support for device-mapper from sys-fs/lvm2","efiemu":"Build and install the efiemu runtimes","fonts":"Build and install fonts for the gfxterm module","libzfs":"Enable support for sys-fs/zfs","mount":"Build and install the grub-mount utility","multislot":"Allow concurrent installation of sys-boot/grub:0 and sys-boot/grub:2 by renaming all programs.","themes":"Build and install GRUB themes (starfield)","truetype":"Build and install grub-mkfont conversion utility"},"lilo":{"device-mapper":"Enable support for device-mapper from sys-fs/lvm2","minimal":"Do not install the dolilo helper script","pxeserial":"Avoid character echo on PXE serial console"},"plymouth":{"gdm":"Enables smooth transition to GDM","libkms":"Provides abstraction to the DRM drivers (intel, nouveau and vmwgfx at this moment)","pango":"Adds support for printing text on splash screen and text prompts, e.g. for password"}},"sys-cluster":{"ceph":{"babeltrace":"Add support for LTTng babeltrace","cryptopp":"Use dev-libs/crypto++ for cryptography","fuse":"Build fuse client","libaio":"Use libaio as asynchronous input/output library","libatomic":"Use libatomic instead of builtin atomic operations","lttng":"Add support for LTTng","nss":"Use dev-libs/nss for cryptography","radosgw":"Add radosgw support","xfs":"Add xfs support","zfs":"Add zfs support"},"charm":{"ampi":"Build implementation of MPI on top of Charm++","charmdebug":"Enable the charm debugger","charmproduction":"Optimize performance of Charm++ runtime","charmtracing":"Enable tracing support in Charm++","cmkopt":"Enable CMK optimisation","mlogft":"Compile with Charm++ message logging fault tolerance support","numa":"Support memory affinity with NUMA","syncft":"Compile with Charm++ fault tolerance support","tcp":"Use TCP (instead of UPD) for socket communication"},"cinder":{"api":"Installs the initscripts for the cinder api service","iscsi":"Allow using an iSCSI remote storage server as pool for disk image storage","lvm":"Allow using the Logical Volume Manager (sys-apps/lvm2) as pool for disk image storage","scheduler":"Installs the initscripts for the cinder scheduler service","volume":"Installs the initscripts for the cinder volume service"},"cluster-glue":{"large-cluster":"Extend messages length limits for resource heavy clusters","libnet":"Force use of net-libs/libnet"},"corosync":{"infiniband":"Enable Infiniband RDMA transport support"},"drbd":{"heartbeat":"Enable Heartbeat integration","pacemaker":"Enable Pacemaker integration","xen":"Enable Xen integration"},"galera":{"garbd":"Install Galera Arbitrator - a stateless daemon which acts as a lightweight group member"},"gearmand":{"drizzle":"Support dev-db/libdrizzle for the queue storage. This also adds support for MySQL storage.","memcache":"Support memcache daemon (via dev-libs/libmemcached) for the queue storage.","tokyocabinet":"Support dev-db/tokyocabinet for the queue storage."},"glusterfs":{"bd-xlator":"Enable the blockdevice translator (requires sys-fs/lvm2)","crypt-xlator":"Enable the encryption translator","extras":"Install extra helper scripts","fuse":"Add FUSE mount helper","georeplication":"Enable support for georeplication (requires dev-lang/python)","glupy":"Enable support for translators written in Python","infiniband":"Add support for Infiniband ibverbs transport. Libraries can be found in science overlay","qemu-block":"Transparently create files as QCow2/QED images in the backend, including the possibility to snapshot.","rsyslog":"Install configuration snippet for app-admin/rsyslog","systemtap":"Enable support for dev-util/systemtap"},"hpx":{"jemalloc":"Use dev-libs/jemalloc for memory allocation","papi":"Use dev-libs/papi for NaCl","perftools":"Use dev-util/google-perftools for memory allocation","tbb":"Use dev-cpp/tbb for memory allocation"},"maui":{"pbs":"Enable pbs integration","slurm":"Enable slurm integration"},"moosefs":{"cgi":"Install CGI server and scripts.","fuse":"Install the mfsmount utility."},"mpich":{"mpi-threads":"Enable MPI_THREAD_MULTIPLE","romio":"Build the ROMIO MPI-IO component"},"mpich2":{"mpi-threads":"Enable MPI_THREAD_MULTIPLE","romio":"Enable romio, a high-performance portable MPI-IO implementation"},"mvapich2":{"large-cluster":"Automatically generated description for large-cluster","medium-cluster":"Automatically generated description for medium-cluster","romio":"Automatically generated description for romio"},"neutron":{"dhcp":"Installs the initscripts for the neutron dhcp service","l3":"Installs the initscripts for the neutron l3 agent service","linuxbridge":"Installs the initscripts for the neutron linuxbridge agent service","metadata":"Installs the initscripts for the neutron metadata agent service","openvswitch":"Installs the initscripts for the neutron openvswitch agent service","server":"Installs the initscripts for the neutron server service"},"nova":{"compute":"Installs the initscripts for the nova volume service","kvm":"qemu-kvm hypervisor support","network":"Installs the initscripts for the nova network service","novncproxy":"Installs the initscripts for the nova novncproxy service","openvswitch":"Installs openvswitch for the neutron openvswitch support","xen":"xen hypervisor support"},"ocfs":{"aio":"Add aio support"},"openmpi":{"cma":"Enable the CMA (Cross Memory Attach) MCA","cuda":"Add GPU direct support","heterogeneous":"Enable features required for heterogeneous platform support","mpi-threads":"Enable MPI_THREAD_MULTIPLE","numa":"Enable numactl to allow binding processes to CPUs","pbs":"Add support for the Portable Batch System (PBS)","romio":"Build the ROMIO MPI-IO component","vt":"Enable bundled VampirTrace support"},"openstack-meta":{"cinder":"Installs Openstack Cinder","glance":"Installs Openstack Glance","keystone":"Installs Openstack Keystone","neutron":"Installs Openstack Neutron","nova":"Installs Openstack Nova","swift":"Installs Openstack Swift"},"pacemaker":{"ais":"Enable sys-cluster/openais support.","cman":"Enable sys-cluster/cman support.","heartbeat":"Enable sys-cluster/heartbeat support.","smtp":"Enable SMTP support via net-libs/libsmtp"},"pacemaker-gui":{"gtk":"Enable the GTK+ based GUI client.","heartbeat":"Enable support for heartbeat based sys-cluster/pacemaker."},"resource-agents":{"libnet":"Force use of net-libs/libnet","rgmanager":"Install resources for sys-cluster/rgmanager"},"slurm":{"maui":"Enable maui scheduler support","multiple-slurmd":"Allow multiple slurmd to run","munge":"Enable authentication via munge","torque":"Enable perl scripts that emulates pbs (qstat, qsub etc.)","ypbind":"Enable ypbind based auth"},"swift":{"account":"adds swift account support","container":"adds swift container support","memcache":"adds memcached support","object":"adds swift object support","proxy":"adds swift proxy support"},"torque":{"cpusets":"Enable pbs_mom to utilize linux cpusets if available","drmaa":"Enable the Distributed Resource Management Application API","munge":"Enable authentication via munge","nvidia":"Enable management of Nvidia GPUs","server":"Enable compilation of pbs_server and pbs_sched"},"vzctl":{"ploop":"Add support for ploop devices via sys-cluster/ploop","vz-kernel":"Support OpenVZ patched kernel (sys-kernel/openvz-sources)","vzmigrate":"Add support for container migration"}},"sys-devel":{"autoconf":{"multislot":"Allow for multiple versions to be installed at once"},"autogen":{"libopts":"install the libopts tarball (a few packages want this for developing)"},"binutils":{"multislot":"Allow for multiple versions of binutils to be emerged at once for same CTARGET","multitarget":"Adds support to binutils for cross compiling (does not work with gas)"},"binutils-apple":{"libcxx":"Add support for libcxx","lto":"Add support for Link-Time Optimization with LLVM"},"binutils-hppa64":{"multislot":"Allow for multiple versions of binutils to be emerged at once for same CTARGET","multitarget":"Adds support to binutils for cross compiling (does not work with gas)"},"clang":{"multitarget":"Build all host targets (default: host only)","static-analyzer":"Install the Clang static analyzer","system-cxx-headers":"By default, clang++ searchs for C++ headers in a series of hardcoded paths. Enabling this flag will force it to use the active gcc profile ones"},"distcc":{"crossdev":"Enable support for sys-devel/crossdev","gssapi":"Enable support for net-libs/libgssglue"},"gcc":{"awt":"Useful only when building GCJ, this enables Abstract Window Toolkit (AWT) peer support on top of GTK+","d":"Enable support for the D programming language","fixed-point":"Enable fixed-point arithmetic support for MIPS targets in gcc (Warning: significantly increases compile time!)","go":"Build the GCC Go language frontend.","graphite":"Add support for the framework for loop optimizations based on a polyhedral intermediate representation","ip28":"Enable building a compiler capable of building a kernel for SGI Indigo2 Impact R10000 (IP28)","ip32r10k":"Enable building a compiler capable of building an experimental kernel for SGI O2 w/ R1x000 CPUs (IP32)","libssp":"Build SSP support into a dedicated library rather than use the code in the C library (DO NOT ENABLE THIS IF YOU DON'T KNOW WHAT IT DOES)","mudflap":"Add support for mudflap, a pointer use checking library","multislot":"Allow for SLOTs to include minor version (3.3.4 instead of just 3.3)","n32":"Enable n32 ABI support on mips","n64":"Enable n64 ABI support on mips","nopie":"Disable PIE support (NOT FOR GENERAL USE)","nossp":"Disable SSP support (NOT FOR GENERAL USE)","objc":"Build support for the Objective C code language","objc++":"Build support for the Objective C++ language","objc-gc":"Build support for the Objective C code language Garbage Collector","regression-test":"Run the testsuite and install the results (requires FEATURES=test)","sanitize":"Build support various sanitizer functions (ASAN/TSAN/etc...)"},"gcc-apple":{"multislot":"Allow for SLOTs to include minor version (3.3.4 instead of just 3.3)","objc":"Build support for the Objective C code language","objc++":"Build support for the Objective C++ language","regression-test":"Run the testsuite and install the results (requires FEATURES=test)"},"gdb":{"client":"Install the main \"gdb\" program (most people want this)","lzma":"Support lzma compression in ELF debug info","multitarget":"Support all known targets in one gdb binary","python":"Enable support for the new internal scripting language, as well as extended pretty printers","server":"Install the \"gdbserver\" program (useful for embedded/remote targets)"},"gettext":{"cvs":"When running `autopoint`, use cvs to store the internal development files; this requires cvs at runtime, but will be faster/smaller than raw archives","git":"When running `autopoint`, use git to store the internal development files; this requires git at runtime, but will be faster/smaller than raw archives"},"kgcc64":{"multislot":"Allow for SLOTs to include minor version (eg. 3.3.4 instead of just 3.3)","regression-test":"Run the testsuite and install the results (requires FEATURES=test)"},"llvm":{"clang":"Build the clang C/C++ compiler","cmake":"Enable cmake support (experimental)","doc":"Build and install the HTML documentation and regenerate the man pages","gold":"Build the gold linker plugin","llvm-gcc":"Build LLVM with sys-devel/llvm-gcc","multitarget":"Build all host targets (default: host only)","ncurses":"Support querying terminal properties using ncurses' terminfo","static-analyzer":"Install the Clang static analyzer (requires USE=clang)","udis86":"Enable support for dev-libs/udis86 disassembler library"},"sparse":{"gtk":"Build the test-inspect utility (requires x11-libs/gtk+ version 2)","llvm":"Build the sparse-llvm utility","xml":"Build the c2xml utility (requires dev-libs/libxml2)."}},"sys-firmware":{"ipxe":{"iso":"Build a bootable ISO for using PXE","qemu":"Build the required PXE ROM images for app-emulation/qemu and app-emulation/qemu-kvm","undi":"Build a Universal Network Device Interface driver chainloading your existing PXE NIC into iPXE","usb":"Build a bootable USB image for using PXE","vmware":"Build the PXE ROM images that VMWare uses"},"seabios":{"binary":"Use official upstream pre-built binaries","seavgabios":"Include SeaVGABIOS binaries (replacement for vgabios)"},"sigrok-firmware-fx2lafw":{"binary":"Use official upstream pre-built binaries"},"vgabios":{"binary":"Use official upstream pre-built binaries (only default and cirrus images)"}},"sys-freebsd":{"boot0":{"tftp":"Enable PXE/TFTP boot support.","zfs":"Enable booting on ZFS filesystems."},"freebsd-lib":{"hesiod":"Enable support for net-dns/hesiod","netware":"Build libraries and tools to work with NetWare protocols (IPX and NCP).","zfs":"Enable ZFS support."},"freebsd-rescue":{"netware":"Build tools to work with NetWare protocols (IPX and NCP).","zfs":"Enable ZFS support."},"freebsd-sbin":{"ipfilter":"Build tools to administer the ipfilter firewall.","netware":"Build libraries and tools to work with NetWare protocols (IPX and NCP).","pf":"Build tools to administer the PF firewall."},"freebsd-share":{"isdn":"Enable ISDN support","zfs":"Enable ZFS support."},"freebsd-sources":{"build-generic":"Build and install a generic kernel (recommended).","build-kernel":"Build and install a kernel (recommended).","dtrace":"Enable DTrace support.","zfs":"Enable ZFS support."},"freebsd-ubin":{"ar":"Build FreeBSD's ar and ranlib replacements based on libarchive. The toolchain will still use binutils' version but you can play with it. They have been renamed to freebsd-ar and freebsd-ranlib not to collide with binutils.","audit":"Build auditing tools.","netware":"Build libraries and tools to work with NetWare protocols (IPX and NCP).","zfs":"Enable ZFS support (for fstat actually)."},"freebsd-usbin":{"audit":"Build auditing tools.","floppy":"Enable floppy disk utilities (fdcontrol, fdformat, fdread, fdwrite).","netware":"Build libraries and tools to work with NetWare protocols (IPX and NCP)."}},"sys-fs":{"aufs3":{"debug":"Enable additional debugging support","fuse":"Enable fuse support","hfs":"Enable hfs support","inotify":"Enable inotify support","kernel-patch":"Patch the current kernel for aufs3 support","nfs":"Enable support for nfs export","pax_kernel":"Apply patch needed for pax enabled kernels","ramfs":"Enable initramfs/rootfs support"},"btrfs-progs":{"debug-utils":"Build additional utils for debugging"},"cryptsetup":{"gcrypt":"Use dev-libs/libgcrypt crypto backend","kernel":"Use kernel crypto backend (mainly for embedded systems)","nettle":"Use dev-libs/nettle crypto backend","openssl":"Use dev-libs/openssl crypto backend","reencrypt":"Build cryptsetup-reencrypt","urandom":"Use /dev/urandom instead of /dev/random"},"dmraid":{"dietlibc":"Compile against dev-libs/dietlibc","intel_led":"Enable Intel LED support","klibc":"Compile against dev-libs/klibc","led":"Enable LED support","mini":"Create a minimal binary suitable for early boot environments"},"ecryptfs-utils":{"gpg":"Enable app-crypt/gnupg key module","openssl":"Enable dev-libs/openssl key module","pkcs11":"Enable PKCS#11 (Smartcards) key module","tpm":"Enable support for Trusted Platform Module (TPM) using app-crypt/trousers"},"eudev":{"gudev":"enable libudev gobject interface","hwdb":"read vendor/device string database and add it to udev database","introspection":"Use dev-libs/gobject-introspection for introspection","keymap":"map custom hardware's multimedia keys","kmod":"enable module loading through libkmod","modutils":"enable module loading support - use modutils calls if kmod not enabled","openrc":"install the OpenRC init scripts","rule-generator":"install legacy rule generator rules and support scripts - note that the functionality within was dropped from sys-fs/udev as it is not stable in all cases; use at your own risk"},"ext4magic":{"expert-mode":"Builds ext4magic with expert mode. Highly useful in recovering data from a corrupted filesystem","file-attr":"Enable the recovery of file attributes (append, immutable, nodump etc)"},"fur":{"void-chmod":"Enable fake hook for \"chmod\" that will only return 0"},"lessfs":{"filelog":"Enable the ability to log to a file instead of syslog","memtrace":"Enable leefs to create a report regarding the memory allocation. This feature should be used for debugging purposes to avoid performance degradation","snappy":"Enable snappy compression using the app-arch/snappy library"},"loop-aes":{"cpu_flags_x86_padlock":"Use VIA padlock instructions, detected at run time, code still works on non-padlock processors","extra-ciphers":"Enable extra ciphers","keyscrub":"Protects the encryption key in memory but takes more cpu resources"},"lvm2":{"clvm":"Allow users to build clustered lvm2","cman":"Cman support for clustered lvm","device-mapper-only":"Build only device-mapper and not the rest of LVM2 (UNSUPPORTED)","lvm1":"Allow users to build lvm2 with lvm1 support","lvm2create_initrd":"Install lvm2create_initrd script and pull in sys-apps/makedev for the /sbin/MAKEDEV command","thin":"Support for thin volumes"},"mtpfs":{"mad":"Enable handling of MP3's metadata"},"ntfs3g":{"external-fuse":"Use external FUSE library instead of internal one. Must be disabled for unprivileged mounting to work.","ntfsdecrypt":"Build and install the ntfsdecrypt application.","ntfsprogs":"Include internal version of ntfsprogs. This will block sys-fs/ntfsprogs."},"ocfs2-tools":{"external":"Enable external locking"},"owfs":{"ftpd":"Enable building the OWFS FTP server (owftpd)","fuse":"Enable building the FUSE-based OWFS client (owfs)","httpd":"Enable building the OWFS web server (owhttpd)","parport":"Enable support for the DS1410E parallel port adapter","server":"Enable building the OWFS server (owserver)"},"quota":{"netlink":"Compile daemon receiving quota messages via netlink","rpc":"Enable quota interaction via RPC"},"s3ql":{"contrib":"Install additional contributed scripts"},"squashfs-tools":{"lz4":"Enable support for LZ4 compression using app-arch/lz4","xz":"Enable support for XZ (\"LZMA2\") compression using app-arch/xz-utils"},"udev":{"firmware-loader":"Enable the userspace firmware loader (DEPRECATED, replaced by the in-kernel loader starting from 3.8)","gudev":"Build the gobject interface library","kmod":"Enable kernel module loading/unloading support using sys-apps/kmod"},"udisks":{"cryptsetup":"Enable sys-fs/cryptsetup support","gptfdisk":"Pull in sys-apps/gptfdisk for sgdisk command as used by partitioning functionality","introspection":"Use dev-libs/gobject-introspection for introspection","remote-access":"Control whether connections from other clients over LAN are allowed","systemd":"Support sys-apps/systemd's logind"},"zfs":{"kernel-builtin":"Disable dependency on sys-fs/zfs-kmod under the assumption that ZFS is part of the kernel source tree","rootfs":"Enable dependencies required for booting off a pool containing a rootfs","test-suite":"Install regression test suite"},"zfs-kmod":{"rootfs":"Install zfs-shutdown script to support exporting a pool containing rootfs"}},"sys-infiniband":{"ofed":{"compat-dapl":"Add support for DAPL v1.2 abstraction layer","dapl":"Add support for DAPL abstraction layer","diags":"Add dignostic tools for infiniband","ibacm":"Add support for userspace pre-connection services","mstflint":"Tools to burn Mellanox firmware","opensm":"Add OpenSM - Subnet manager for infiniband","perftest":"Add perftest utils","qperf":"Add rdma tests","rds":"Tools to manage rds sockets","sdp":"Add SDP tools","srp":"Suport for userspace part for srp initiator"},"opensm":{"tools":"Install ssld extra tool"}},"sys-kernel":{"aufs-sources":{"deblob":"Remove binary blobs from kernel sources to provide libre license compliance.","experimental":"Apply experimental patches; for more information, see \"https://wiki.gentoo.org/wiki/Project:Kernel/Experimental\".","module":"Patch kernel to allow aufs being build as a module.","vanilla":"Use vanilla kernel sources without applying genpatches. WARNING: This flag will drop all support from the Gentoo Kernel Security team"},"ck-sources":{"bfsonly":"BFS by itslef vs The full ck patchset","deblob":"Remove binary blobs from kernel sources to provide libre license compliance.","experimental":"Allow experimental code. Can break or degrade performances. (UNSUPPORTED)","urwlocks":"Use upgradable read/write locks in place of the grq spinlock. (EXPERIMENTAL)"},"dracut":{"debug":"Module installing additional tools like strace, file editor, ssh and more","device-mapper":"Set of helper modules providing support for device mapper. You need to enable this only if emerge says so.","net":"Set of helper modules providing networking support. You need to enable this only if emerge says so."},"genkernel":{"crypt":"Obsolete USE flag. Use cryptsetup for LUKS support. (bug ##414523)","cryptsetup":"Enable support for Luks disk encryption using sys-fs/cryptsetup"},"genkernel-next":{"cryptsetup":"Enable support for Luks disk enrcyption using sys-fs/cryptsetup","dmraid":"Enable support for DMRAID (include dmraid dependency)","gpg":"Enable support for GPG (include gnupg dependency)","iscsi":"Enable support for open-iscsi (include open-iscsi dependency)","plymouth":"Enable support for Plymouth (include Plymouth dependency)"},"gentoo-sources":{"deblob":"Remove binary blobs from kernel sources to provide libre license compliance.","experimental":"Apply experimental patches; for more information, see \"https://wiki.gentoo.org/wiki/Project:Kernel/Experimental\"."},"hardened-sources":{"deblob":"Remove binary blobs from kernel sources to provide libre license compliance."},"linux-docs":{"html":"Install HTML documentation"},"linux-firmware":{"savedconfig":"Allows individual selection of firmware files"},"mips-sources":{"cobalt":"Enables support for Cobalt Microserver hardware (Qube2/RaQ2)","ip27":"Enables support for SGI Origin (IP27)","ip28":"Enables support for SGI Indigo2 Impact R10000 (IP28)","ip30":"Enables support for SGI Octane (IP30, 'Speedracer')","ip32r10k":"Enables experimental support for IP32 R10K kernels (SGI O2, 'Moosehead')"},"openvz-sources":{"deblob":"Remove binary blobs from kernel sources to provide libre license compliance."},"pf-sources":{"deblob":"Remove binary blobs from kernel sources to provide libre license compliance.","experimental":"Apply patches that are considered experimental. For more information, check out the ChangeLog or the ebuild that interests you."},"rt-sources":{"deblob":"Remove binary blobs from kernel sources to provide libre license compliance."},"spl":{"debug-log":"Enable additional diagnostics"},"tuxonice-sources":{"experimental":"Apply experimental patches; for more information, see \"https://wiki.gentoo.org/wiki/Project:Kernel/Experimental\"."},"vanilla-sources":{"deblob":"Remove binary blobs from kernel sources to provide libre license compliance."},"vserver-sources":{"deblob":"Remove binary blobs from kernel sources to provide libre license compliance."}},"sys-libs":{"db":{"rpc":"Enable rpc client/server"},"freeipmi":{"nagios":"Install a nagios plugin to check sensors' status."},"gdbm":{"berkdb":"enable compatibility layer for UNIX-like dbm and ndbm interfaces","exporter":"enable gdbmexport binary for exporting data from gdbm-1.8 databases into gdbm-1.9"},"glibc":{"debug":"When USE=hardened, allow fortify/stack violations to dump core (SIGABRT) and not kill self (SIGKILL)","gd":"build memusage and memusagestat tools","nscd":"Build, and enable support for, the Name Service Cache Daemon","suid":"Make internal pt_chown helper setuid -- not needed if using Linux and have /dev/pts mounted with gid=5","systemtap":"enable systemtap static probe points"},"gwenhywfar":{"fox":"Use x11-libs/fox graphical toolkit"},"libcxx":{"libcxxrt":"Build on top of sys-libs/libcxxrt instead of gcc's libsupc++ (avoids depending on gcc)."},"libcxxrt":{"libunwind":"Use sys-libs/libunwind instead of libgcc_s for unwinding. This should allow avoiding relying on sys-devel/gcc but for now clang is setup to use libgcc_s."},"libosinfo":{"introspection":"Use dev-libs/gobject-introspection for introspection","vala":"Enable bindings for dev-lang/vala"},"libseccomp":{"tools":"enable debugging tools"},"libunwind":{"debug-frame":"Adds support for DWARF .debug_frame section: Use the information from this section if available","libatomic":"Use libatomic instead of builtin atomic operations"},"ncurses":{"ada":"Add bindings for the ADA programming language","tinfo":"Build curses library (libncurses) sep from the low-level terminfo library (libtinfo) -- usually needed only for binary packages -- but it is binary compatible in either mode","trace":"Enable test trace() support in ncurses calls"},"pam":{"audit":"Enable support for sys-process/audit","berkdb":"Build the pam_userdb module, that allows to authenticate users against a Berkeley DB file. Please note that enabling this USE flag will create a PAM module that links to the Berkeley DB (as provided by sys-libs/db) installed in /usr/lib and will thus not work for boot-critical services authentication.","cracklib":"Build the pam_cracklib module, that allows to verify the chosen passwords' strength through the use of sys-libs/cracklib. Please note that simply enabling the USE flag on this package will not make use of pam_cracklib by default, you should also enable it in sys-auth/pambase as well as update your configuration files."},"talloc":{"compat":"Enable extra compatibility stuff"},"timezone-data":{"right_timezone":"Install the set of \"right\" timezones; these timezones include leap seconds when counting seconds since the epoch (while posix does not)"},"uclibc":{"rpc":"Enable sun nis/rpc support (you should use libtirpc though)","savedconfig":"Adds support for user defined configs","ssp":"Force the use of ssp to be built into a hardened uclibc setup","uclibc-compat":"Build uclibc with backwards compatible options","wordexp":"Add support for word expansion (wordexp.h)"},"zlib":{"minizip":"include the minizip library for quick and dirty zip extraction"}},"sys-power":{"cpupower":{"cpufreq_bench":"Build and install the cpufreq_bench binary"},"nut":{"ipmi":"Support IPMI-based UPSes.","ups_drivers_al175":"Driver for Eltek UPS models with AL175 alarm module","ups_drivers_apcsmart":"Driver for American Power Conversion Smart Protocol UPS equipment","ups_drivers_apcsmart-old":"Driver for American Power Conversion Smart Protocol UPS equipment","ups_drivers_apcupsd-ups":"Driver for apcupsd client access","ups_drivers_bcmxcp":"Driver for UPSes supporting the serial BCM/XCP protocol","ups_drivers_bcmxcp_usb":"Experimental driver for UPSes supporting the BCM/XCP protocol over USB","ups_drivers_belkin":"Driver for Belkin serial UPS equipment","ups_drivers_belkinunv":"Driver for Belkin \"Universal UPS\" and compatible","ups_drivers_bestfcom":"Driver for Best Power Fortress/Ferrups","ups_drivers_bestfortress":"Driver for old Best Fortress UPS equipment","ups_drivers_bestuferrups":"Driver for Best Power Micro-Ferrups","ups_drivers_bestups":"Driver for Best Power / SOLA (Phoenixtec protocol) UPS equipment","ups_drivers_blazer_ser":"Driver for Megatec/Q1 protocol serial based UPS equipment","ups_drivers_blazer_usb":"Driver for Megatec/Q1 protocol USB based UPS equipment","ups_drivers_clone":"Fake driver to clone outlets for device grouping","ups_drivers_clone-outlet":"Fake driver to clone outlets for device grouping","ups_drivers_dummy-ups":"Driver for multi-purpose UPS emulation","ups_drivers_etapro":"Driver for ETA UPS equipment","ups_drivers_everups":"Driver for Ever UPS models","ups_drivers_gamatronic":"Driver for Gamatronic UPS equipment","ups_drivers_genericups":"Driver for contact-closure UPS equipment","ups_drivers_isbmex":"Driver for ISBMEX UPS equipment","ups_drivers_ivtscd":"driver for the IVT Solar Controller Device","ups_drivers_liebert":"Driver for Liebert contact-closure UPS equipment","ups_drivers_liebert-esp2":"Driver for Liebert UPS, using the ESP-II serial protocol","ups_drivers_masterguard":"Driver for Masterguard UPS equipment","ups_drivers_metasys":"Driver for Meta System UPS equipment","ups_drivers_mge-shut":"Driver for SHUT Protocol UPS equipment","ups_drivers_mge-utalk":"Driver for MGE UPS SYSTEMS UTalk protocol equipment","ups_drivers_microdowell":"Driver for Microdowell Enterprise UPS series","ups_drivers_netxml-ups":"Driver for Eaton / MGE Network Management Card / Proxy (XML/HTTP Protocol) equipment","ups_drivers_nut-ipmipsu":"Driver for IPMI Power Supply Units (PSU)","ups_drivers_nutdrv_qx":"Driver for Q* protocol serial and USB based UPS equipment","ups_drivers_oldmge-shut":"Driver for SHUT Protocol UPS equipment (older implementation)","ups_drivers_oneac":"Driver for Oneac UPS equipment","ups_drivers_optiups":"Driver for Opti-UPS (Viewsonic) UPS and Zinto D (ONLINE-USV) equipment","ups_drivers_powercom":"UPS driver for serial Powercom/Trust/Advice UPS equipment","ups_drivers_powerpanel":"Driver for PowerPanel Plus compatible UPS equipment","ups_drivers_rhino":"Driver for Brazilian Microsol RHINO UPS equipment","ups_drivers_richcomm_usb":"Driver UPS equipment using Richcomm dry-contact to USB solution","ups_drivers_riello_ser":"Driver for Riello UPS Protocol UPS equipment","ups_drivers_riello_usb":"Driver for Riello UPS Protocol UPS equipment via USB","ups_drivers_safenet":"Driver for SafeNet compatible UPS equipment","ups_drivers_snmp-ups":"Multi-MIB Driver for SNMP UPS equipment","ups_drivers_solis":"Driver for Brazilian Microsol SOLIS UPS equipment","ups_drivers_tripplite":"Driver for Tripp-Lite SmartPro UPS equipment","ups_drivers_tripplite_usb":"Driver for older Tripp Lite USB UPSes (not PDC HID)","ups_drivers_tripplitesu":"Driver for Tripp-Lite SmartOnline (SU) UPS equipment","ups_drivers_upscode2":"Driver for UPScode II compatible UPS equipment","ups_drivers_usbhid-ups":"Driver for USB/HID UPS equipment","ups_drivers_victronups":"Driver for IMV/Victron UPS unit Match, Match Lite, NetUps"},"nvclock":{"gtk":"Install the GTK+ based graphical interface","nvcontrol":"Add NVCONTROL support for OpenGL options"},"phctool":{"sudo":"Enable support for sudo to run gui from non-root user"},"pm-utils":{"ntp":"Install support for net-misc/ntp"},"powerman":{"genders":"Add support for selecting power control targets using genders (-g option)","h8power":"Add support for h8 based power controllers","httppower":"Add support for HTTP based power controllers","snmppower":"Add support for SNMP based power controllers"},"powermgmt-base":{"pm-utils":"Adds support for on_ac_power through sys-power/pm-utils"},"sispmctl":{"gemplug":"Install gemplug (management script)"},"suspend":{"crypt":"Allows suspend and resume from encrypted disk","fbsplash":"Add support for framebuffer splash"}},"sys-process":{"criu":{"setproctitle":"Make process titles of service workers to be more verbose"},"cronie":{"anacron":"Install the periodic anacron command scheduler.","inotify":"Enable inotify filesystem monitoring support."},"fcron":{"debug":"Enable debug code and output. Since version 3.0.5 this will no longer force foreground execution, and fcron will be able to run as a service properly.","mta":"Enable mta support for sending emails from fcron","pam":"Enable PAM support for fcron. This means that fcron will pass through the \"fcron\" stack before executing the jobs, and fcrontab will use the \"fcrontab\" stack to authenticate the user before editing its crontab file.","system-crontab":"Set up fcron to respect /etc/crontab and /etc/cron.d. If this flag is disabled, /etc/cron.d and /etc/crontab will be ignored, but /etc/cron.{hourly,daily,weekly,monthly} will still be respected."},"glances":{"chart":"Enables support of graph charts via matplotlib","hddtemp":"Enables hard drive temperature monitoring","snmp":"Enables SNMP support","web":"Enables the web server mode"},"htop":{"oom":"Add column to track the OOM-killer score of processes","openvz":"Enable openvz support","vserver":"Enable vserver support"},"lsof":{"rpc":"support looking up RPC service info"},"procps":{"modern-top":"Enables new startup defaults of top. Keeps old defaults if disabled","ncurses":"Build programs that use ncurses: top, slabtop, watch"}},"virtual":{"ffmpeg":{"opus":"Use the external opus library for encoding and decoding."},"linux-sources":{"firmware":"Install linux kernel firmware"},"mpi":{"romio":"Enable romio, a high-performance portable MPI-IO"},"mysql":{"embedded":"Build embedded server (libmysqld)"},"podofo-build":{"boost":"Add support for boost"}},"www-apache":{"mod_backtrace":{"unwind":"Use sys-libs/libunwind to provide better resolution of function names."},"mod_extract_forwarded":{"mod_proxy":"Enable support for Apache's internal proxy"},"mod_musicindex":{"archive":"Add archive support","cache":"Add File cache support","mysql":"Add MySQL cache support"},"mod_nss":{"ecc":"enable Elliptical Curve Cyptography"},"mod_security":{"curl":"Build the ModSecurity Audit Log Collector (mlogc) that depends on net-misc/curl.","geoip":"Configure ModSecurity to query the GeoIP database from MaxMind, provided by dev-libs/geoip. This flag only controls the default configuration, as the GeoIP query code is part of ModSecurity's source code.","jit":"Add support for the PCRE Just-in-Time optimisation, as enabled by dev-libs/libpcre with jit USE flag enabled. Might not be available on hardened systems."},"mod_suphp":{"checkpath":"Check if script resides in DOCUMENT_ROOT","mode-force":"Run scripts with UID/GID specified in Apache configuration","mode-owner":"Run scripts with owner UID/GID","mode-paranoid":"Run scripts with owner UID/GID but also check if they match the UID/GID specified in the Apache configuration"},"pwauth":{"domain-aware":"Ignore leading domain names in username (Windows compat)","faillog":"Log failed login attempts","ignore-case":"Ignore string case in username (mostly Windows compat)"}},"www-apps":{"389-dsgw":{"adminserver":"Install DSGW with Admin Server"},"ampache":{"transcode":"Install optional dependencies for transcoding support"},"bitten":{"server":"Install master instance that integrates itself with Trac"},"blohg":{"git":"Enable Git support","mercurial":"Enable Mercurial support"},"bugzilla":{"extras":"Optional Perl modules","modperl":"Enable www-apache/mod_perl support"},"cgit":{"highlight":"Enable source code highlighting","jit":"If the lua flag is enabled, jit uses LuaJIT instead of vanilla Lua","lua":"Enable support for Lua scripting"},"drupal":{"accelerator":"Add dependency on a php accelerator","uploadprogress":"Install dev-php/pecl-uploadprogress package"},"egroupware":{"gallery":"Install gallery2 port for eGW","jpgraph":"Add dev-php/jpgraph support"},"gallery":{"netpbm":"Add media-libs/netpbm support","unzip":"Add app-arch/unzip support for the archive upload module","zip":"Add app-arch/zip for the zip download module"},"gitit":{"network-uri":"Get Network.URI from the network-uri package.","plugins":"enables optional plugin runtime loader"},"horde-passwd":{"clearpasswd":"Enables cleartext password storage in the vpopmail files"},"ikiwiki":{"extras":"Installs additional modules used by ikiwiki plugins"},"nikola":{"assets":"Support web asset management through dev-python/assets","charts":"Support chart generation through dev-python/pygal","hyphenation":"Add hyphenation support through dev-python/pyphen","ipython":"Add IPython notebook compilation and LESS support","jinja":"Add support for dev-python/jinja as alternative templating engine to Mako","markdown":"Add support for Markdown as alternative markup language to reStructuredText"},"novnc":{"nova":"Installs Openstack Nova for it's libraries"},"otrs":{"mod_perl":"Provide all dependencies for use of mod_perl instead of cgi"},"postfixadmin":{"vacation":"Install vacation.pl script and dependencies"},"redmine":{"passenger":"Enable support for www-apache/passenger"},"rt":{"lighttpd":"Add www-servers/lighttpd support"},"sitebar":{"plugins":"Install optional plugins"},"sugarcrm":{"json":"Add JSON (JavaScript Object Notation) support"},"trac":{"highlight":"Enable syntax highlighting","i18n":"Enable support for i18n with dev-python/Babel","restructuredtext":"Enable support for reStructuredText for wiki formatting"},"tt-rss":{"daemon":"Install additional init scripts for automated RSS updates"},"venus":{"django":"Support for django template style to config files","genshi":"Support for genshi style to config files","redland":"Enable support for Redland RDF"},"viewvc":{"cvsgraph":"Add dev-vcs/cvsgraph support to show graphical views of revisions and branches","mod_wsgi":"Add www-apache/mod_wsgi support","pygments":"Add dev-python/pygments support for syntax highlighting"},"webdavcgi":{"rcs":"Adds support for a revision controlled backend with RCS (dev-vcs/rcs)"}},"www-client":{"chromium":{"bindist":"Disable patent-encumbered HTML5 video codecs","hidpi":"Enable support for high-resolution screens (high dots per inch)","pic":"Disable optimized assembly code that is not PIC friendly","proprietary-codecs":"Enable proprietary codecs like H.264, MP3","tcmalloc":"Use bundled tcmalloc instead of system malloc","widevine":"Support the Widevine DRM module from www-plugins/chrome-binary-plugins"},"dwb":{"gtk3":"Link against x11-libs/gtk+:3 instead of x11-libs/gtk+:2","libsecret":"Enable libsecret support to store login credentials"},"elinks":{"bittorrent":"Enable support for the BitTorrent protocol","finger":"Enable support for the finger protocol","gopher":"Enable support for the gopher protocol","mouse":"Make elinks to grab all mouse events"},"epiphany":{"nss":"Import passwords from older gecko based www-client/epiphany keyring."},"firefox":{"bindist":"Disable official Firefox branding (icons, name) which are not binary-redistributable according to upstream.","custom-optimization":"Fine-tune custom compiler optimizations (-Os, -O0, -O1, -O2, -O3)","gmp-autoupdate":"Allow Gecko Media Plugins (binary blobs) to be automatically downloaded and kept up-to-date in user profiles","minimal":"Prevent sdk and headers from being installed","pgo":"Add support for profile-guided optimization using gcc-4.5, for faster binaries. This option will double the compile time.","system-cairo":"Use the system-wide x11-libs/cairo instead of bundled.","system-icu":"Use the system-wide dev-libs/icu instead of bundled.","system-jpeg":"Use the system-wide media-libs/libjpeg-turbo instead of bundled.","system-libvpx":"Use the system-wide media-libs/libvpx instead of bundled.","system-sqlite":"Use the system-wide dev-db/sqlite installation with secure-delete enabled"},"google-chrome":{"plugins":"Add system plugins path to launcher"},"google-chrome-beta":{"plugins":"Add system plugins path to launcher"},"google-chrome-unstable":{"plugins":"Add system plugins path to launcher"},"luakit":{"luajit":"Use the lua just-in-time compiler dev-lang/luajit instead of dev-lang/lua, which should make luakit faster.","pax_kernel":"Use paxctl to mark the luakit binary."},"lynx":{"gnutls":"Use gnutls library for HTTPS support (openssl is the default library for HTTPS support).","ssl":"Enable HTTPS support."},"midori":{"deprecated":"Enable GTK+-2 instead of GTK+-3 because of external plugins like adobe-flash","granite":"Enable support for the elementary library dev-libs/granite","unique":"Enable single instance support using dev-libs/libunique","webkit2":"Enable WebKit2 API that splits web content rendering and application UI into separate processes","zeitgeist":"Add support for Zeitgeist event tracking system"},"netsurf":{"bmp":"BMP bitmap image support (media-libs/libnsbmp)","fbcon_frontend_able":"Use framebuffer frontend able","fbcon_frontend_linux":"Use framebuffer frontend linux","fbcon_frontend_sdl":"Use framebuffer frontend sdl","fbcon_frontend_vnc":"Use framebuffer frontend vnc","fbcon_frontend_x":"Use framebuffer frontend X","pdf-writer":"PDF output support (media-libs/libharu)","rosprite":"RISC OS Sprite bitmap image support (media-libs/librosprite)","svgtiny":"SVG image support via media-libs/svgatiny instead of gnome-base/librsvg","webp":"WebP image support (media-libs/libwebp)"},"opera":{"gtk":"Install support libraries and runtime dependencies to support GTK+/GNOME desktop integration","kde":"Install support libraries and runtime dependencies to support KDE desktop integration"},"qupzilla":{"nonblockdialogs":"Enable fancy non-blocking JavaScript dialogs shown inside the page, not blocking the application window. When closing browser windows with open dialogs, this can crash the application."},"rekonq":{"nepomuk":"Enable Nepomuk based semantic desktop support (deprecated)","opera":"Support for Opera sync handler"},"seamonkey":{"chatzilla":"Build Mozilla's IRC client (default on)","custom-optimization":"Fine-tune custom compiler optimizations (-Os, -O0, -O1, -O2, -O3)","gmp-autoupdate":"Allow Gecko Media Plugins (binary blobs) to be automatically downloaded and kept up-to-date in user profiles","ipc":"Use inter-process communication between tabs and plugins. Allows for greater stability in case of plugin crashes","roaming":"Build roaming extension support (default on)","system-cairo":"Use the system-wide x11-libs/cairo Use system cairo instead of bundled.","system-icu":"Use the sytem-wide dev-libs/icu Use system icu indead of bundled.","system-jpeg":"Use the system-wide media-libs/libjpeg-turbo Use system jpeg instead of bundled.","system-libvpx":"Use the system-wide media-libs/libvpx instead of bundled.","system-sqlite":"Use the system-wide dev-db/sqlite installation with secure-delete enabled"},"surf":{"savedconfig":"Without a saved config.h, this package depends on net-misc/curl and x11-terms/st for a default download mechanism"},"uget":{"aria2":"Enable support for net-misc/aria2 through xmlrpc. You'll find the plugin in the app's settings.","gtk3":"Use x11-libs/gtk+:3 instead of x11-libs/gtk+:2","hide-temp-files":"Make temporary files that are used while downloading hidden."},"uzbl":{"browser":"Install the uzbl-browser script","experimental":"Enable experimental branch","gtk3":"Use x11-libs/gtk+:3 instead of x11-libs/gtk+:2","helpers":"Optional tools used by uzbl scripts","tabbed":"Install the uzbl-tabbed script"},"vimb":{"gtk3":"Link against x11-libs/gtk+:3 instead of x11-libs/gtk+:2"},"w3m":{"lynxkeymap":"If you prefer Lynx-like key binding"},"weboob":{"fast-libs":"Enable fast libs","secure-updates":"Enable secure updates"}},"www-misc":{"gurlchecker":{"json":"Enable support for parsing Google Chrome and derivatives bookmarks.","sqlite":"Enable support for parsing Firefox and derivatives bookmarks."},"litmus":{"libproxy":"Support for automatic proxy configuratino management through net-libs/libproxy.","libxml2":"Use dev-libs/libxml2 to parse XML","pkcs11":"Support for PKCS #11 through PaKChoiS (dev-libs/pakchois)."},"monitorix":{"apcupsd":"Make use of a daemon that controls APC UPSes with sys-power/apcupsd.","evms":"Make use of utilities for the IBM Enterprise Volume Management System with sys-fs/evms.","hddtemp":"Use SMART to monitor the temperature of hard drives with app-admin/hddtemp.","httpd":"Enables the CGI webserver with any package that satisfies virtual/httpd-cgi.","lm_sensors":"Additional hardware mnitoring sensors with sys-apps/lm_sensors.","postfix":"Analyze postfix logs with net-mail/pflogsumm."},"vdradmin-am":{"vdr":"Support for media-video/vdr. Disable this if the VDR you want to control runs at a remote machine."},"xxv":{"themes":"Enable more themes via x11-themes/xxv-skins"},"zoneminder":{"curl":"Enable using net-misc/curl for streaming from cameras","gcrypt":"...","openssl":"...","vlc":"Enable using media-libs/vlc for streaming from cameras"}},"www-plugins":{"adobe-flash":{"kde":"Install a KCM plugin for configuring flash player preferences"},"chrome-binary-plugins":{"flash":"Install Chrome's native Pepper Flash","widevine":"Install the Widevine DRM library"},"gnash":{"agg":"Rendering based on the Anti-Grain Geometry Rendering Engine library","cygnal":"Enable building of the cygnal server","dump":"Enable dump output module for creating video from SWF","egl":"Enable EGL support for the OpenVG, OpenGL and X11 renderers","gconf":"Enable GConf configuration backend","harden":"Enable upstream recommended hardening build flags (may conflict with system ones)","jemalloc":"Use dev-libs/jemalloc for allocations","openvg":"Rendering based on the OpenVG graphics acceleration API","sdl-sound":"Enable SDL audio output for the standalone player","ssh":"Enable using SSH for network authentication in libnet","ssl":"Enable directly using OpenSSL in libnet (not needed for nsplugin ssl support)"},"lightspark":{"gles":"Replace default OpenGL renderer with GLESv2","rtmp":"Enable Real Time Messaging Protocol using librtmp"}},"www-servers":{"apache":{"apache2_modules_access_compat":"Group authorizations based on host (name or IP address). Available as a compatibility module with previous versions.","apache2_modules_authn_core":"Provides core authentication capabilities common to all authentication providers (functionality provided by authn_alias in previous versions).","apache2_modules_authz_core":"Provides core authorization capabilities to various authorization/authorization modules, such as authn_file and authz_user.","apache2_modules_authz_dbd":"Provides authorization capabilities via SQL database so that authenticated users can be allowed or denied access to portions of the web site by group membership.","apache2_modules_cache_disk":"Disk based storage module for the HTTP caching filter (similar to mem_cache in previous versions).","apache2_modules_lbmethod_bybusyness":"Pending request counting load balancer scheduler algorithm for proxy_balancer.","apache2_modules_lbmethod_byrequests":"Request counting load balancer scheduler algorithm for proxy_balancer.","apache2_modules_lbmethod_bytraffic":"Weighted traffic counting load balancer scheduler algorithm for proxy_balancer.","apache2_modules_lbmethod_heartbeat":"Heartbeat traffic counting load balancer scheduler algorithm for proxy_balancer.","apache2_modules_proxy_fcgi":"FCGI support module for mod_proxy.","apache2_modules_proxy_wstunnel":"Provides support for the tunnelling of web socket connections to a backend websockets server.","apache2_modules_ratelimit":"Ratelimit module for transfer rate management","apache2_modules_remoteip":"Remotip module for logging","apache2_modules_slotmem_shm":"Slot-based shared memory provider.","apache2_modules_socache_shmcb":"A shared object cache provider using a high-performance cyclic buffer inside a shared memory segment.","apache2_modules_unixd":"Basic (required) security for Unix-family platforms.","static":"Link in apache2 modules statically rather then plugins","suexec":"Install suexec with apache"},"cherokee":{"admin":"Install web based cherokee conf tool","rrdtool":"Enable rrdtool support"},"fnord":{"auth":"Enable HTTP authentication support"},"gatling":{"diet":"Compile against dev-libs/dietlibc"},"hiawatha":{"cache":"Enable caching of content.","monitor":"Pull in www-apps/hiawatha-monitor.","rewrite":"Enable the rewrite toolkit.","tomahawk":"Enable Tomahawk control server.","xslt":"Enable XSLT support. This is also needed for directory listings."},"lighttpd":{"libev":"Enable fdevent handler","memcache":"Enable memcache support for mod_cml and mod_trigger_b4_dl","mmap":"Use mmap with files owned by lighttpd. This is a dangerous option as it may allow local users to trigger SIGBUS crashes.","rrdtool":"Enable rrdtool support via mod_rrdtool","uploadprogress":"Apply experimental patch for upload progress module","webdav":"Enable webdav properties"},"monkeyd":{"debug":"Enable lots of debugging info","jemalloc":"Use dev-libs/jemalloc for allocations","minimal":"Do not install shared lib and include files"},"nginx":{"aio":"Enables file AIO support","http":"Enable HTTP core support","http-cache":"Enable HTTP cache support","libatomic":"Use libatomic instead of builtin atomic operations","luajit":"Use dev-lang/luajit instead of dev-lang/lua for lua support when building the lua http module.","pcre-jit":"Enable JIT for pcre","rtmp":"NGINX-based Media Streaming Server","ssl":"Enable HTTPS module for http. Enable SSL/TLS support for POP3/IMAP/SMTP for mail."},"pound":{"dynscaler":"Enable dynamic rescaling of back-end priorities"},"pshs":{"magic":"Enable automatic detection of Content-Type using libmagic (sys-apps/file)","netlink":"Use libnetlink (sys-apps/iproute2) to get network interface addresses","qrcode":"Enable generating QRCodes for server URL"},"resin":{"admin":"Enable Resin admin webapp"},"tomcat":{"extra-webapps":"Build also the docs and examples webapp","websockets":"Builds websockets api and implementation (requires java 7)"},"uwsgi":{"carbon":"Enable support for sending statistics to a carbon server (see http://projects.unbit.it/uwsgi/wiki/Carbon).","embedded":"Embed plugins instead of building them as real plugins. When disabling this USE flag make sure you specify all used plugins in your uWSGI configuration. Note: Language plugins will always be built as real plugins.","erlang":"Let the uWSGI server as as an Erlang C-Node and exchange messages and rpc with Erlang nodes. Together with the USE=python this enables erlang support in python (see the mappings table in http://projects.unbit.it/uwsgi/wiki/ErlangIntegration).","gevent":"Use dev-python/gevent for async request dispatching and as LoopEngine (see http://projects.unbit.it/uwsgi/wiki/Gevent).","graylog2":"Enable logging to graylog2 (see http://graylog2.org/).","jemalloc":"Use dev-libs/jemalloc instead of libc's malloc","json":"Support json as a configuration file format.","nagios":"Add nagios-friendly logging output (see http://projects.unbit.it/uwsgi/wiki/Nagios).","probepg":"Add the PostgreSQL probe plugin (see http://projects.unbit.it/uwsgi/wiki/DjangoDBHA).","python_asyncio":"Use the EXPERIMENTAL asyncio (tulip) for python3.4 async request dispatching and as LoopEngine (see http://uwsgi-docs.readthedocs.org/en/latest/asyncio.html).","python_gevent":"Use dev-python/gevent for async request dispatching and as LoopEngine (see http://projects.unbit.it/uwsgi/wiki/Gevent).","routing":"Enable routing support","rrdtool":"Enable support for writing requests data in RRD files.","rsyslog":"Support direct logging to a app-admin/rsyslog socket (without going through the syslog interface).","spooler":"Build a plugin which gives a network spooler (see http://projects.unbit.it/uwsgi/wiki/Spooler).","yajl":"Use dev-libs/yajl instead of dev-libs/jansson for parsing JSON configuration files (if USe=json is set)","yaml":"Support yaml as a configuration file format.","zeromq":"Enable logging and deployment via ZeroMQ."},"varnish":{"jemalloc":"Use dev-libs/jemalloc for allocations","tools":"Build additional tools: varnishhist, varnishstat, varnishtop, varnishsizes"}},"x11-apps":{"ardesia":{"cwiid":"cwiid support: collection of Linux tools written in C for interfacing to the Nintendo Wiimote."},"intel-gpu-tools":{"python":"Install python based register dumper utilities"},"mesa-progs":{"egl":"Build EGL utilities","gles1":"Build OpenGL ES 1 utilities","gles2":"Build OpenGL ES 2 utilities"},"xdm":{"consolekit":"Enable native sys-auth/consolekit support","xdm-auth":"Enable XDM-AUTHENTICATION-1 support"},"xdpyinfo":{"dmx":"Builds support for Distributed Multiheaded X x11-base/xorg-server"},"xinit":{"minimal":"Control dependencies on legacy apps (xterm, twm, ...). Safe to enable if you use a modern desktop environment."},"xkbset":{"tk":"Install the dev-perl/perl-tk based xkbset-gui utility"},"xsm":{"rsh":"This allows the use of rsh (remote shell) and rcp (remote copy)."}},"x11-base":{"xorg-server":{"dmx":"Build the Distributed Multiheaded X server","glamor":"Enable Glamor OpenGL 2D acceleration","kdrive":"Build the kdrive X servers","tslib":"Build with tslib support for touchscreen devices","unwind":"Enable libunwind usage for backtraces","xephyr":"Build the Xephyr server","xnest":"Build the Xnest server","xorg":"Build the Xorg X server (HIGHLY RECOMMENDED)","xvfb":"Build the Xvfb server"}},"x11-drivers":{"ati-drivers":{"disable-watermark":"Do a potentially dangerous binary search and replace to disable watermark","modules":"Build the kernel modules","pax_kernel":"Enable pax kernel specific patches","qt4":"Install qt4 dependent optional tools (e.g Catalyst Control Panel)"},"nvidia-drivers":{"X":"Install the X.org driver, OpenGL libraries, XvMC libraries, and VDPAU libraries","gtk2":"Install nvidia-settings with support for GTK+ 2","gtk3":"Install nvidia-settings with support for GTK+ 3","pax_kernel":"PaX patches from the PaX project","tools":"Install additional tools such as nvidia-settings","uvm":"Install the Unified Memory kernel module (nvidia-uvm) for sharing memory between CPU and GPU in CUDA programs"},"xf86-video-ati":{"glamor":"Enable Glamor OpenGL 2D acceleration"},"xf86-video-geode":{"ztv":"Enable building the V4L2 ZTV driver"},"xf86-video-intel":{"glamor":"Enable Glamor OpenGL 2D acceleration","sna":"Enable SandyBridge's New Acceleration (useful on all chipsets, not just SandyBridge)","uxa":"Enable UMA Acceleration Architecture","xvmc":"Enables X-Video Motion Compensation support"},"xf86-video-nouveau":{"glamor":"Enable Glamor OpenGL 2D acceleration"},"xf86-video-openchrome":{"viaregtool":"Install registers dumper tool"},"xf86-video-qxl":{"xspice":"Build the xspice driver"}},"x11-libs":{"agg":{"gpc":"Enable gpc polygon clipper library"},"cairo":{"drm":"Use Linux DRM for backend acceleration","gallium":"Use Mesa's Gallium backend for acceleration","gles2":"Use OpenGL ES 2 backend for acceleration.","glib":"Compile with GLib Object System support","legacy-drivers":"Include the buggy gradients patch (for legacy drivers, such as nvidia-drivers older than 304.30)","opengl":"Use Mesa backend for acceleration","openvg":"Use OpenVG for backend acceleration","valgrind":"Built-in support to mark memory regions","xlib-xcb":"Use XCB renderer backend for acceleration over xlib"},"fltk":{"games":"Builds and installs some extra games"},"glamor":{"gles":"Build glamor based on gles2"},"gtk+":{"broadway":"Enable the GDK Broadway backend.","cloudprint":"Enable printing via Google Cloud Print.","colord":"Use x11-misc/colord for color management in printing"},"gtk+extra":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"gtkdatabox":{"glade":"Build with libglade and glade-3 supports, which includes a glade's module for GtkDataBox widget"},"gtkmathview":{"mathml":"Install additional fonts for proper mathml support.","t1lib":"Enable media-libs/t1lib support"},"gtksourceview":{"glade":"Install a glade catalog file"},"libQGLViewer":{"designer":"Installs dev-qt/designer plugin."},"libSM":{"uuid":"Use UUID for session identification instead of IP address and system time."},"libXaw":{"deprecated":"Install deprecated Xaw6 library."},"libXfont":{"bzip2":"Support bzip2 compressed PCF fonts.","truetype":"Use media-libs/freetype for font rasterization."},"libaosd":{"pango":"Enable the textual helpers (requires pangocairo).","tools":"Install the aosd_cat tool (requires glib-2.0)."},"libdesktop-agnostic":{"gconf":"Enable GConf as configuration backend","glade":"Install the Glade catalog for the desktop-agnotstic GTK widgets.","introspection":"Use dev-libs/gobject-introspection for introspection"},"libdrm":{"libkms":"Enable building of libkms, a library for applications to interface with KMS","valgrind":"Compile in valgrind memory hints"},"libfm":{"automount":"Use gnome-base/gvfs for automounting","udisks":"Use libfm's udisks-based volume monitor implementation instead of using the one from gvfs","vala":"Support custom actions in menus"},"libmatchbox":{"pango":"Enable x11-libs/pango support","xsettings":"Enable the use of xsettings for settings management"},"libqxt":{"berkdb":"Build the QxtBerkeley module","sql":"Build the QxtSql module","web":"Build the QxtWeb module","zeroconf":"Build the QxtZeroconf module"},"libva":{"drm":"Enables VA/DRM API support.","egl":"Enables EGL support."},"libva-intel-driver":{"drm":"Enables VA/DRM API support."},"libwnck":{"tools":"Install wnckprop-3 and wnck-urgency-monitor-3 command-line tools"},"libxcb":{"xkb":"Enable the XCB keyboard extension"},"libxklavier":{"introspection":"Use dev-libs/gobject-introspection for introspection"},"motif":{"motif22-compatibility":"Compatibility with Open Motif 2.2"},"mx":{"glade":"Build the dev-util/glade catalog files","introspection":"Use dev-libs/gobject-introspection for introspection"},"pixman":{"loongson2f":"Enable Loongson2f MMI optimizations."},"qscintilla":{"designer":"Build plugin for Qt Designer"},"qwt":{"mathml":"Use the MathML renderer of the Qt solutions package."},"vte":{"glade":"Provide integration with dev-util/glade.","introspection":"Use dev-libs/gobject-introspection for introspection"},"wxGTK":{"gnome":"Use gnome-base/libgnomeprintui for printing tasks.","gstreamer":"Enable the wxMediaCtrl class for playing audio and video through gstreamer.","sdl":"Use Simple Directmedia Layer (media-libs/libsdl) for audio."}},"x11-misc":{"bmpanel":{"libev":"Use the libev event loop interface","libevent":"Use the libevent event loop interface"},"bumblebee":{"bbswitch":"Add dependency on sys-kernel/bbswitch for PM feature"},"cdm":{"consolekit":"Enable native consolekit support"},"colord":{"argyllcms":"Enable ArgyllCMS sensor","extra-print-profiles":"Generate extra print profiles. Warning: significant build time and memory requirements.","gusb":"Enable dev-libs/libgusb support, needed for colorimeter drivers"},"compton":{"drm":"Enable VSync with DRM_IOCTL_WAIT_VBLANK","opengl":"Enable VSync with SGI_swap_control OpenGL extension"},"dmenu":{"xft":"Enable unofficial x11-libs/libXft support"},"dunst":{"dunstify":"Experimental replacement for notify-send."},"etm":{"ical":"Enable export of ical format files by depending on dev-python/icalendar"},"fbpager":{"xrender":"Enable transparency support via x11-libs/libXrender"},"i3status":{"filecaps":"Linux capabilities library is required for i3status to be able to read net bandwith"},"lightdm":{"gtk":"Pull in the gtk+ greeter","introspection":"Use dev-libs/gobject-introspection for introspection","kde":"Pull in the kde greeter"},"openbox-menu":{"icons":"Enable support for icons in menus","svg":"Support SVG icons"},"rednotebook":{"libyaml":"enable libyaml support","spell":"enable gtk-spell support"},"redshift":{"appindicator":"Enable usage of dev-libs/libappindicator to export menu options in to unity and KDE 5","geoclue":"Control dependency on app-misc/geoclue"},"rodent":{"experimental":"Build experimental plugins (obexfs, curlftpfs, ecryptfs, cifs and samba)"},"rofi":{"i3":"Compile in support for the x11-wm/i3 window manager"},"rss-glx":{"quesoglc":"Enable support for OpenGL Character Renderer"},"sddm":{"consolekit":"Use ck-launch-session from sys-auth/consolekit by default in Xsession (no native support)"},"shutter":{"drawing":"Enables drawing tool","webphoto":"Enables screenshots of websites"},"slim":{"consolekit":"Enable native consolekit support"},"stalonetray":{"graceful-exit":"use non-portable hack to exit gracefuly on signal"},"tint2":{"battery":"Enable battery status plugin","examples":"Install tint2rc examples","tint2conf":"Build/Install tint2conf as well"},"vnc2swf":{"x11vnc":"Install script that depends on x11vnc"},"wbar":{"gtk":"Enables the gtk-based wbar-config GUI"},"x11vnc":{"system-libvncserver":"Build x11vnc against the system libvncserver (experimental)","tk":"Support the simple tcl/tk -gui option"},"xlockmore":{"xlockrc":"Enables xlockrc for people without PAM"},"xmobar":{"mpd":"Support mpd plugin","mpris":"Enables MPRIS v1, v2 support","timezone":"Enables localized date support"},"xscreensaver":{"gdm":"Use gdmflexiserver from gnome-base/gdm instead of x11-misc/lightdm","new-login":"Enable user switching support using gdmflexiserver (x11-misc/lightdm) or kdmctl (kde-base/kdm)"}},"x11-plugins":{"bfm":{"gkrellm":"Enable building of app-admin/gkrellm module"},"compiz-plugins-extra":{"gconf":"Install GConf schemas for the plugins, needed when using the GConf-based configuration backend in x11-wm/compiz."},"compiz-plugins-main":{"gconf":"Install GConf schemas for the plugins, needed when using the GConf-based configuration backend in x11-wm/compiz."},"pidgin-mbpurple":{"twitgin":"Enable graphical plugin for Gtk+ interface of Pidgin."},"pidgin-sipe":{"ocs2005-message-hack":"Disable message timeout for OCS2005 clients which causes \"false\" not delivered error messages","openssl":"Enable crypto support via dev-libs/openssl","telepathy":"Support use as a telepathy backend","voice":"Enable experimental voice/video support"},"purple-plugin_pack":{"talkfilters":"Enable support for app-text/talklfilters"},"screenlets":{"svg":"Highly Recommended: Enable SVG graphics via dev-python/librsvg-python"},"vicious":{"contrib":"Install extra widgets, some for less common hardware, some contributed by Vicious users."},"wmfire":{"session":"Enable session management"},"wmsysmon":{"high-ints":"Enable support for monitoring 24 interrupts. Useful on SMP machines"}},"x11-terms":{"aterm":{"background":"Enable background image support via media-libs/libafterimage","xgetdefault":"Enable resources via X instead of aterm small version"},"eterm":{"escreen":"Enable built-in app-misc/screen support","utempter":"Include libutempter support"},"gnome-terminal":{"gnome-shell":"Integrate with gnome-base/gnome-shell search","nautilus":"Build gnome-base/nautilus extension"},"hanterm":{"utempter":"Records user logins. Useful on multi-user systems"},"mlterm":{"fcitx":"Enable app-i18n/fcitx support","ibus":"Enable app-i18n/ibus support","libssh2":"Enable net-libs/libssh2 support","regis":"Enable ReGIS support","scim":"Enable app-i18n/scim support","uim":"Enable app-i18n/uim support","utempter":"Enable sys-libs/libutempter support"},"mrxvt":{"menubar":"Enable mrxvt menubar","utempter":"REcords user logins. Useful on multi-user systems"},"rxvt":{"linuxkeys":"Define LINUX_KEYS (changes Home/End key)","xgetdefault":"Enable resources via X instead of rxvt small version"},"rxvt-unicode":{"256-color":"Enable 256 color support","alt-font-width":"Calculate the font width using a different method","blink":"Enable blinking text","buffer-on-clear":"Store visible output to history buffer when clearing the screen with ctrl-l. Read https://bbs.archlinux.org/viewtopic.php?id=129302","fading-colors":"Enable colors fading when off focus","focused-urgency":"Enable the urgent flag when a terminal window is focused","font-styles":"Enable support for bold and italic fonts","iso14755":"Enable ISO-14755 support","mousewheel":"Enable scrolling via mouse wheel or buttons 4 and 5","perl":"Enable perl script support. You can still disable this at runtime with -pe \"\"","pixbuf":"Enable transparency support using gtk's pixbuf","secondary-wheel":"Support for wheel scrolling on secondary screens (like mutt). Read http://lists.schmorp.de/pipermail/rxvt-unicode/2011q4/001491.html","unicode3":"Use 21 instead of 16 bits to represent unicode characters","wcwidth":"Enable wide char width support"},"terminator":{"libnotify":"Enables desktop notifications viadev-python/notify-python"},"xterm":{"openpty":"Use openpty() in preference to posix_openpt()","toolbar":"Enable the xterm toolbar to be built"}},"x11-themes":{"bespin":{"windeco":"Enable window decoration for KWin."},"comix-xcursors":{"lefthanded":"Install lefthanded version of theme in addition to default one","opaque":"Install non-transparent version of theme in addition to default one"},"gentoo-artwork":{"grub":"Install extra sys-boot/grub themes","icons":"Install icons","lilo":"Install extra sys-boot/lilo themes","pixmaps":"Install pixmaps"},"gtk-engines-murrine":{"animation-rtl":"Progressbar animation from right to left","themes":"Pull in themes via x11-themes/murrine-themes"},"gtk-engines-nodoka":{"animation-rtl":"Progressbar animation from right to left"},"gtk-engines-qtcurve":{"mozilla":"Install GUI theme tweaks for mozilla based browsers www-client/firefox"},"kfaenza":{"additional":"Install additional KFaenza icons. See third homepage for details"},"light-themes":{"gtk3":"Support GTK 3.x, too"},"qtcurve":{"kde":"Enable KDE4 support. This adds a QtCurve configuration module to KDE's SystemSettings","windeco":"Enable window decoration for KWin"},"redhat-artwork":{"audacious":"Install media-sound/audacious theme","cursors":"Install Bluecurve cursors","gdm":"Install Bluecurve gnome-base/gdm theme","icons":"Install Bluecurve icons","kdm":"Install Bluecurve kde-base/kdm theme","nautilus":"Install Bluecurve gnome-base/nautilus icons"},"skinenigmang-logos":{"dxr3":"Install logos for lower osd color depth on dxr3 cards"},"zukitwo":{"gnome-shell":"Install theme for gnome-base/gnome-shell"}},"x11-wm":{"compiz":{"fuse":"Enables support for the filesystem in userspace plugin through sys-fs/fuse.","gconf":"Enable the GConf-based configuration backend; it is not required to work with GNOME, and might actually be faster if it's not used."},"compiz-fusion":{"emerald":"Install the x11-wm/emerald package.","unsupported":"Install the x11-plugins/compiz-fusion-plugins-unsupported package."},"echinus":{"xrandr":"Enable support for multihead configuration"},"enlightenment":{"enlightenment_modules_access":"Accessibility module designed to improve ease of use for the vision impaired and the blind","enlightenment_modules_appmenu":"Gadget that hold the toolbar of the foreground application","enlightenment_modules_backlight":"Backlight control slider gadget","enlightenment_modules_battery":"A gadget to visualize your battery status","enlightenment_modules_bluez4":"Configure Bluetooth devices","enlightenment_modules_clock":"Nice clock gadget to show current time","enlightenment_modules_comp":"Enlightenment Composite Manager","enlightenment_modules_conf-applications":"Allows configuration of Ibar, Restart, and Startup applications","enlightenment_modules_conf-comp":"Configure default dialog properties","enlightenment_modules_conf-dialogs":"Configure default dialog properties","enlightenment_modules_conf-display":"Used to configure your screen","enlightenment_modules_conf-edgebindings":"Configure your edge bindings here","enlightenment_modules_conf-interaction":"Configure Mouse and Touch input","enlightenment_modules_conf-intl":"Used to select a default language","enlightenment_modules_conf-keybindings":"Key, Mouse and Button control settings","enlightenment_modules_conf-menus":"Configures menu behavior","enlightenment_modules_conf-paths":"Specifies the Enlightenment search paths and default directories","enlightenment_modules_conf-performance":"Used to configure certain performance related items as frame rates and cache settings","enlightenment_modules_conf-randr":"Used to configure your screen's resolution","enlightenment_modules_conf-shelves":"Shelf configuration dialog","enlightenment_modules_conf-theme":"Used to configure your theme preferences","enlightenment_modules_conf-wallpaper2":"Used to configure your theme preferences","enlightenment_modules_conf-window-manipulation":"Configures window raise, resistance, and maximize policies","enlightenment_modules_conf-window-remembers":"Delete existing window remembers","enlightenment_modules_connman":"Control Wifi and wired networks as a user","enlightenment_modules_contact":"Enable the contact module","enlightenment_modules_cpufreq":"Gadget to monitor and change the CPU frequency","enlightenment_modules_dropshadow":"Module to add a dropshadow to windows","enlightenment_modules_everything":"The run command module provides an application launcher dialog","enlightenment_modules_fileman":"Enlightenment's integrated file manager","enlightenment_modules_fileman-opinfo":"Can be placed on the desktop or in a shelf","enlightenment_modules_gadman":"Module to manage gadgets on the desktop","enlightenment_modules_ibar":"Iconic application launcher","enlightenment_modules_ibox":"A home for your iconified applications","enlightenment_modules_illume2":"Illume2 - next generation of illume - special WM mode for embedded devices and set of plugins with same purpose","enlightenment_modules_mixer":"A module to provide a mixer for changing volume","enlightenment_modules_msgbus":"DBus Extension","enlightenment_modules_music-control":"Control your music in your shelf","enlightenment_modules_notification":"notification-daemon alternative. Popup if an event occur","enlightenment_modules_pager":"Gadget to allow you to visualize your virtual desktops and the windows they contain","enlightenment_modules_quickaccess":"Enlightenment Quickaccess Launcher","enlightenment_modules_shot":"Simple screenshot+save/upload module","enlightenment_modules_start":"Enlightenment's \"Start\" button equivalent","enlightenment_modules_syscon":"This module provides a unified popup dialog for all the system actions in Enlightenment","enlightenment_modules_systray":"system tray that hold applications icons like Skype, Pidgin, Kopete and others","enlightenment_modules_tasks":"Gadget to allow you to switch tasks","enlightenment_modules_teamwork":"Enable teamwork module","enlightenment_modules_temperature":"Temperature monitor","enlightenment_modules_tiling":"Positions/resizes your windows tilingly","enlightenment_modules_winlist":"A module to show the list of client applications presently running","enlightenment_modules_wizard":"First Run Wizard","enlightenment_modules_wl-desktop-shell":"Enlightenment Wayland Desktop Shell","enlightenment_modules_wl-screenshot":"Enlightenment Wayland Screenshot module","enlightenment_modules_xkbswitch":"Keyboard layout configuration and switcher","pango":"Enable pango font rendering","udev":"Use sys-fs/udev to determine available devices","ukit":"Use upower/udisks to automount devices","xrandr":"Enable support for the X xrandr extension"},"fluxbox":{"bidi":"Enable bidirectional language support with dev-libs/fribidi","slit":"Enables the fluxbox slit (or dock)","toolbar":"Enables the fluxbox toolbar"},"fvwm":{"gtk2-perl":"Enable GTK2 Perl bindings","lock":"Enable screen locking","netpbm":"Enable NetPBM support (used by FvwmScript-ScreenDump)","rplay":"Enable rplay support","stroke":"Mouse Gesture support"},"i3":{"pango":"Use x11-libs/pango to render text in order to support fonts which have more glyphs (e.g. Kanji). See RELEASE-NOTES for more information"},"matchbox-common":{"pda":"Support for pda folders"},"matchbox-desktop":{"dnotify":"Use the linux kernel directory notification feature."},"matchbox-panel":{"dnotify":"Use the linux kernel directory notification feature.","lowres":"Optimize for low resolution screens."},"musca":{"apis":"Optionally install the experimental `apis' window manager","xlisten":"Optionally install the xlisten utility"},"mutter":{"kms":"Enable KMS support."},"notion":{"xrandr":"Add support for xrandr"},"openbox":{"session":"Enables support for session managers","xdg":"Install the python xdg files for xdg autostart"},"pekwm":{"contrib":"Install optional extras in the documentation directory","themes":"Install additional themes"},"ratpoison":{"history":"Use sys-libs/readline for history handling","sloppy":"Install sloppy, a focus-follows-mouse implementation for ratpoison"},"stumpwm":{"clisp":"Use CLISP for the runtime","doc":"Include documentation","ecl":"Use SCL for the runtime","emacs":"Add support for GNU Emacs","sbcl":"Use SBCL for the runtime"},"subtle":{"xrandr":"Enable support for the X RandR extension","xtest":"Enable support for the XTest extension"},"vtwm":{"rplay":"Enable rplay support, needed for sound."},"windowmaker":{"modelock":"Enable XKB language status lock support. README says: \"If you don't know what it is you probably don't need it.\"","vdesktop":"Enable dynamic virtual desktop (conflicts with software that works on the edges of the screen)","webp":"Enables WebP image format support using media-libs/libwebp","xrandr":"Enable XRandR window extension support"},"xmonad":{"default-term":"Pull terminal specified in default xmonad config to be a bit less hostile by default.","no-autorepeat-keys":"Allow ignoring of keyboard autorepeat."},"xpra":{"client":"Build client-side code","clipboard":"Enable clipboard support","csc":"Enable csc softscaler support","dec_av":"Enable dec_avcodec support","dec_av2":"Enable dec_avcodec2 support","rencode":"Enable rencode support","server":"Build server-side code","vpx":"Enable vpx image format support","webp":"Enable webp image format support"}},"xfce-base":{"libxfce4ui":{"glade":"Build support for Glade 3's GtkBuilder implementation"},"libxfcegui4":{"glade":"Build glade bindings"},"xfce4-settings":{"libcanberra":"Enable sound event support using media-libs/libcanberra","libinput":"Enable libinput Xorg driver (x11-drivers/xf86-input-libinput) support","xklavier":"Enable keyboard layout selection support using x11-libs/libxklavier"},"xfdesktop":{"thunar":"Build support for desktop icons (for example, launchers and folders)"}},"xfce-extra":{"multiload-nandhp":{"lxpanel":"Build the applet for lxde-base/lxpanel, you can set XFCE_PLUGINS=\"\" if you don't want the Xfce dependencies."},"tumbler":{"odf":"Enable support for .odf thumbnailers by using gnome-extra/libgsf"},"xfce4-clipman-plugin":{"qrcode":"Enable support for media-gfx/qrencode"},"xfce4-mixer":{"keybinder":"Enable shortcut support using dev-libs/keybinder"},"xfce4-mpc-plugin":{"libmpd":"Build using media-libs/libmpd backend, instead of native fallback which is preferred"},"xfce4-playercontrol-plugin":{"audacious":"Enable Audacious support","mpd":"Enable Music Player Daemon support"},"xfce4-power-manager":{"lxpanel":"Build the applet for lxde-base/lxpanel, you can set XFCE_PLUGINS=\"\" if you don't want the Xfce dependencies."},"xfce4-soundmenu-plugin":{"glyr":"Enable music metadata searchengine support using media-libs/glyr","keybinder":"Enable shortcut support using dev-libs/keybinder","lastfm":"Enable last.fm support using media-libs/libclastfm"},"xfce4-taskmanager":{"gksu":"Build against x11-libs/libgksu to provide \"Run as root\" option in the application's menu"},"xfswitch-plugin":{"gdm":"Use gdmflexiserver from gnome-base/gdm instead of x11-misc/lightdm"}}}}