dev-libs/glib: try to sync somewhat with gx86test-sam

- glib-2.56.2: old, no longer in gx86, add python 3.8 and 3.9 to
  supported versions, not really changing anything, used in tests only,
  will allow depcleaning python 3.7 on Prefix systems though
- glib-2.66.2: latest, but meson/ninja based, of course completely
  broken, needs work, de-keyworded for now

Package-Manager: Portage-3.0.10.3-prefix, Repoman-3.0.2
RepoMan-Options: --force
Signed-off-by: Fabian Groffen <grobian@gentoo.org>

7 files changed, 365 insertions, 690 deletions

diff --git a/dev-libs/glib/Manifest b/dev-libs/glib/Manifest
index 654849c16b..0b4341f360 100644
--- a/dev-libs/glib/Manifest
+++ b/dev-libs/glib/Manifest
@@ -1,6 +1,4 @@
-DIST 07d4a86e74b9b12a562b57ce5fa3a275bf0fe774.zip 13852 BLAKE2B a272281e4850b11b1632593155ed6bcbea73ccae4e6a7083c70dfd1ba207b5ae66d981445e08aca34287a6631ddcee7c832be152a9a3f62f470b17819c7949b6 SHA512 971a0519b53e066adcce27176bc134f6ccd6660d85113d5be10fa7cd421ef1e089a1780459de63234de618abd68df62d308f409a7097fe6a9e91e20510af40b9
-DIST glib-2.50.2.tar.xz 7582312 BLAKE2B 1faa4bec57b0dc9538a5d86b6530b5b60c37d01c6b1e3d3667c1e0204bb78fa5890699456425f302f33b48792af0fe448c17760614895d10b27358a5c187a518 SHA512 63d7b5ece8d7d15b10e06ef10a8e0a4446f30a8d9c97daa3352ec00dfef622728bd42ed24cbf67e553166a0f9e29a3e3d024d1d085b9804fd67608db438b6771
-DIST glib-2.52.3.tar.xz 7679972 BLAKE2B 8d9f6b714571bd04ab9717fbf9ded8556664e43dcdb7dd59436b8b7f1a8a5cdf98e9ce60ca1ead941af1d57688044fefb6c749fa735084622a3482b058864ff6 SHA512 a068f2519cfb82de8d4b7f004e7c1f15e841cad4046430a83b02b359d011e0c4077cdff447a1687ed7c68f1a11b4cf66b9ed9fc23ab5f0c7c6be84eb0ddc3017
 DIST glib-2.56.2.tar.xz 8041756 BLAKE2B 1af5bb37378856e959602bcb9299266bba46b990839c923f6b9881624aed306af0779005281b3e3a46b5994c54812edc86aade9cb782c596fd63b6fd91baba51 SHA512 8201ea82d3613d2e879284abe01520b766da30957c5a1a22f3e6019b0cce6bf95d25beae78867b6a133401c4165153c0c92974dd459ab12f9e0e9dd0c95df5d4
+DIST glib-2.66.2.tar.xz 4836456 BLAKE2B 5484a7fe497dbe06df7ce11dbc8836c95dbb01e6e309516b82158f2915eeee36ccbe6e904cb6ae9a5a0223ccc0b52f6e64d61a418bf790538bc90388430977b2 SHA512 30278c066c6b209f45fcfdb9ffc4732236451464506b93c0fff0964ff8aac58c15be85c3793c686d4740d9d97857984bc0ab71e38d5da11c5fd860e569fb6cb9
 DIST glib-cygwinports-3a873fdd1b9a9e649563fe8e6b8ae6951b0dd3be.zip 13038 BLAKE2B 08f217e204c8518137722dcd535c100cbdc56e43dcf3d16a339c93353c594287670215c130b2c7f83235145632fad6d30903ae099f5999bf72ec070a12da4484 SHA512 fd4925d6a2380c5ff551e812a182de20f7b59e5d134a2c54b985efe85ab334499b0050097ca5c3271f14e2c3c5e89650e134a01e4c5be06bad05a12eaaf9fe53
 DIST pkg-config-0.28.tar.gz 1931203 BLAKE2B bafdd4e838623965c6bd454421ddd9051fc43fc29948e1615b49fef463c3c3a18807aabe6416f96cfdf58d6b1c9e114d77f97bd985facee7c14284a8a64a768b SHA512 6eafa5ca77c5d44cd15f48457a5e96fcea2555b66d8e35ada5ab59864a0aa03d441e15f54ab9c6343693867b3b490f392c75b7d9312f024c9b7ec6a0194d8320
diff --git a/dev-libs/glib/files/glib-2.64.1-mark-gdbus-server-auth-test-flaky.patch b/dev-libs/glib/files/glib-2.64.1-mark-gdbus-server-auth-test-flaky.patch
new file mode 100644
index 0000000000..d1a41ecb79
--- /dev/null
+++ b/dev-libs/glib/files/glib-2.64.1-mark-gdbus-server-auth-test-flaky.patch
@@ -0,0 +1,32 @@
+From 95b22035f6151ab465c37fe5e3e340713cb74e23 Mon Sep 17 00:00:00 2001
+From: Matt Turner <mattst88@gmail.com>
+Date: Tue, 24 Mar 2020 18:44:54 -0700
+Subject: [PATCH] Mark gdbus-server-auth test flaky
+
+See https://gitlab.gnome.org/GNOME/glib/-/issues/1954
+---
+ gio/tests/meson.build | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/gio/tests/meson.build b/gio/tests/meson.build
+index 788cf978b..7f45d0191 100644
+--- a/gio/tests/meson.build
++++ b/gio/tests/meson.build
+@@ -122,12 +122,13 @@ if dbus1_dep.found()
+     },
+     'gdbus-server-auth' : {
+       'dependencies' : [dbus1_dep],
++      'suite' : ['flaky'],
+     },
+   }
+ else
+   # We can build a cut-down version of this test without libdbus
+   gio_tests += {
+-    'gdbus-server-auth' : {},
++    'gdbus-server-auth' : {'suite' : ['flaky']},
+   }
+ endif
+ 
+-- 
+2.24.1
+
diff --git a/dev-libs/glib/glib-2.50.2.ebuild b/dev-libs/glib/glib-2.50.2.ebuild
deleted file mode 100644
index e6d26981a0..0000000000
--- a/dev-libs/glib/glib-2.50.2.ebuild
+++ /dev/null
@@ -1,326 +0,0 @@
-# Copyright 1999-2020 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-# $Id$
-
-# Until bug #537330 glib is a reverse dependency of pkgconfig and, then
-# adding new dependencies end up making stage3 to grow. Every addition needs
-# then to be think very closely.
-
-EAPI=6
-PYTHON_COMPAT=( python2_7 )
-# Completely useless with or without USE static-libs, people need to use
-# pkg-config
-GNOME2_LA_PUNT="yes"
-
-inherit autotools bash-completion-r1 eutils flag-o-matic gnome2 libtool linux-info \
-	multilib multilib-minimal pax-utils python-r1  toolchain-funcs versionator virtualx
-
-DESCRIPTION="The GLib library of C routines"
-HOMEPAGE="http://www.gtk.org/"
-SRC_URI="${SRC_URI}
-	https://pkgconfig.freedesktop.org/releases/pkg-config-0.28.tar.gz" # pkg.m4 for eautoreconf
-CYGWINPORTS_GITREV="07d4a86e74b9b12a562b57ce5fa3a275bf0fe774"
-
-[[ -n ${CYGWINPORTS_GITREV} ]] &&
-SRC_URI+=" elibc_Cygwin? ( https://github.com/cygwinports/glib2.0/archive/${CYGWINPORTS_GITREV}.zip )"
-
-LICENSE="LGPL-2+"
-SLOT="2"
-IUSE="dbus +doc debug fam kernel_linux +mime selinux static-libs systemtap test utils xattr"
-REQUIRED_USE="
-	utils? ( ${PYTHON_REQUIRED_USE} )
-	test? ( ${PYTHON_REQUIRED_USE} )
-"
-
-KEYWORDS="~ppc-aix ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~m68k-mint ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
-
-RDEPEND="
-	!<dev-util/gdbus-codegen-${PV}
-	>=dev-libs/libpcre-8.13:3[${MULTILIB_USEDEP},static-libs?]
-	>=virtual/libiconv-0-r1[${MULTILIB_USEDEP}]
-	>=virtual/libffi-3.0.13-r1[${MULTILIB_USEDEP}]
-	>=virtual/libintl-0-r2[${MULTILIB_USEDEP}]
-	>=sys-libs/zlib-1.2.8-r1[${MULTILIB_USEDEP}]
-	selinux? ( >=sys-libs/libselinux-2.2.2-r5[${MULTILIB_USEDEP}] )
-	xattr? ( >=sys-apps/attr-2.4.47-r1[${MULTILIB_USEDEP}] )
-	fam? ( >=virtual/fam-0-r1[${MULTILIB_USEDEP}] )
-	utils? (
-		${PYTHON_DEPS}
-		>=dev-util/gdbus-codegen-${PV}[${PYTHON_USEDEP}]
-		virtual/libelf:0=
-	)
-"
-DEPEND="${RDEPEND}
-	app-text/docbook-xml-dtd:4.1.2
-	>=dev-libs/libxslt-1.0
-	>=sys-devel/gettext-0.11
-	>=dev-util/gtk-doc-am-1.20
-	systemtap? ( >=dev-util/systemtap-1.3 )
-	test? (
-		sys-devel/gdb
-		${PYTHON_DEPS}
-		>=dev-util/gdbus-codegen-${PV}[${PYTHON_USEDEP}]
-		>=sys-apps/dbus-1.2.14 )
-	!<dev-util/gtk-doc-1.15-r2
-"
-PDEPEND="!<gnome-base/gvfs-1.6.4-r990
-	dbus? ( gnome-base/dconf )
-	mime? ( x11-misc/shared-mime-info )
-"
-# shared-mime-info needed for gio/xdgmime, bug #409481
-# dconf is needed to be able to save settings, bug #498436
-# Earlier versions of gvfs do not work with glib
-
-MULTILIB_CHOST_TOOLS=(
-	/usr/bin/gio-querymodules$(get_exeext)
-)
-
-pkg_setup() {
-	if use kernel_linux ; then
-		CONFIG_CHECK="~INOTIFY_USER"
-		if use test ; then
-			CONFIG_CHECK="~IPV6"
-			WARNING_IPV6="Your kernel needs IPV6 support for running some tests, skipping them."
-		fi
-		linux-info_pkg_setup
-	fi
-}
-
-src_prepare() {
-	# Prevent build failure in stage3 where pkgconfig is not available, bug #481056
-	mv -f "${WORKDIR}"/pkg-config-*/pkg.m4 "${S}"/m4macros/ || die
-
-	if use test; then
-		# Disable tests requiring dev-util/desktop-file-utils when not installed, bug #286629, upstream bug #629163
-		if ! has_version dev-util/desktop-file-utils ; then
-			ewarn "Some tests will be skipped due dev-util/desktop-file-utils not being present on your system,"
-			ewarn "think on installing it to get these tests run."
-			sed -i -e "/appinfo\/associations/d" gio/tests/appinfo.c || die
-			sed -i -e "/g_test_add_func/d" gio/tests/desktop-app-info.c || die
-		fi
-
-		# gdesktopappinfo requires existing terminal (gnome-terminal or any
-		# other), falling back to xterm if one doesn't exist
-		if ! has_version x11-terms/xterm && ! has_version x11-terms/gnome-terminal ; then
-			ewarn "Some tests will be skipped due to missing terminal program"
-			sed -i -e "/appinfo\/launch/d" gio/tests/appinfo.c || die
-		fi
-
-		# https://bugzilla.gnome.org/show_bug.cgi?id=722604
-		sed -i -e "/timer\/stop/d" glib/tests/timer.c || die
-		sed -i -e "/timer\/basic/d" glib/tests/timer.c || die
-
-		ewarn "Tests for search-utils have been skipped"
-		sed -i -e "/search-utils/d" glib/tests/Makefile.am || die
-	else
-		# Don't build tests, also prevents extra deps, bug #512022
-		sed -i -e 's/ tests//' {.,gio,glib}/Makefile.am || die
-	fi
-
-	# gdbus-codegen is a separate package
-	eapply "${FILESDIR}"/${PN}-2.50.0-external-gdbus-codegen.patch
-
-	# Leave python shebang alone - handled by python_replicate_script
-	# We could call python_setup and give configure a valid --with-python
-	# arg, but that would mean a build dep on python when USE=utils.
-	sed -e '/${PYTHON}/d' \
-		-i glib/Makefile.{am,in} || die
-
-	if [[ -n ${CYGWINPORTS_GITREV} ]] && use elibc_Cygwin; then
-	    local p d="${WORKDIR}/glib2.0-${CYGWINPORTS_GITREV}"
-	    for p in $(
-		    eval "$(sed -ne '/PATCH_URI="/,/"/p' < "${d}"/glib2.0.cygport)"
-		    echo ${PATCH_URI}
-	    ); do
-		    # Cygwin hasn't updated to 2.50.2 yet, which has patches merged.
-		    [[ ${p} == 2.46-glocalfilemonitor.patch ]] && continue
-		    epatch "${d}/${p}"
-	    done
-	fi
-
-	eapply_user
-
-	# make default sane for us
-	if use prefix ; then
-		sed -i -e "s:/usr/local:${EPREFIX}/usr:" gio/xdgmime/xdgmime.c || die
-		# bug #308609, without path, bug #314057
-		export PERL=perl
-	fi
-
-	if [[ ${CHOST} == *-solaris* ]] ; then
-		# fix standards conflicts
-		sed -i \
-			-e 's/\<\(_XOPEN_SOURCE_EXTENDED\)\>/\1_DISABLED/' \
-			-e '/\<_XOPEN_SOURCE\>/s/  2,/600,/' \
-			configure.ac || die
-		sed -i -e '/#define\s\+_POSIX_SOURCE/d' \
-			glib/giounix.c || die
-	fi
-
-	# Also needed to prevent cross-compile failures, see bug #267603
-	eautoreconf
-
-	gnome2_src_prepare
-}
-
-multilib_src_configure() {
-	# Avoid circular depend with dev-util/pkgconfig and
-	# native builds (cross-compiles won't need pkg-config
-	# in the target ROOT to work here)
-	if ! tc-is-cross-compiler && ! $(tc-getPKG_CONFIG) --version >& /dev/null; then
-		if has_version sys-apps/dbus; then
-			export DBUS1_CFLAGS="-I/usr/include/dbus-1.0 -I/usr/$(get_libdir)/dbus-1.0/include"
-			export DBUS1_LIBS="-ldbus-1"
-		fi
-		export LIBFFI_CFLAGS="-I$(echo /usr/$(get_libdir)/libffi-*/include)"
-		export LIBFFI_LIBS="-lffi"
-	fi
-
-	# These configure tests don't work when cross-compiling.
-	if tc-is-cross-compiler ; then
-		# https://bugzilla.gnome.org/show_bug.cgi?id=756473
-		case ${CHOST} in
-		hppa*|metag*) export glib_cv_stack_grows=yes ;;
-		*)            export glib_cv_stack_grows=no ;;
-		esac
-		# https://bugzilla.gnome.org/show_bug.cgi?id=756474
-		export glib_cv_uscore=no
-		# https://bugzilla.gnome.org/show_bug.cgi?id=756475
-		export ac_cv_func_posix_get{pwuid,grgid}_r=yes
-	fi
-
-	local myconf
-
-	case "${CHOST}" in
-		*-mingw*) myconf="${myconf} --with-threads=win32" ;;
-		*)        myconf="${myconf} --with-threads=posix" ;;
-	esac
-
-	# non-glibc platforms use GNU libiconv, but configure needs to know about
-	# that not to get confused when it finds something outside the prefix too
-	if use !elibc_glibc ; then
-		myconf="${myconf} --with-libiconv=gnu"
-		# add the libdir for libtool, otherwise it'll make love with system
-		# installed libiconv. Automake passes LDFLAGS before local libs,
-		# add this to LIBS instead to come after local lib dirs.
-		append-libs "-L${EPREFIX}/usr/$(get_libdir)"
-	fi
-
-	# FIXME: Always use internal libpcre, bug #254659
-	# (maybe consider going back to system lib)
-	# libelf used only by the gresource bin
-	ECONF_SOURCE="${S}" gnome2_src_configure ${myconf} \
-		$(usex debug --enable-debug=yes ' ') \
-		$(use_enable xattr) \
-		$(use_enable fam) \
-		$(use_enable selinux) \
-		$(use_enable static-libs static) \
-		$(use_enable systemtap dtrace) \
-		$(use_enable systemtap systemtap) \
-		$(multilib_native_use_enable utils libelf) \
-		--disable-compile-warnings \
-		$(use_enable doc man) \
-		--with-pcre=system \
-		--with-xml-catalog="${EPREFIX}/etc/xml/catalog"
-
-	if multilib_is_native_abi; then
-		local d
-		for d in glib gio gobject; do
-			ln -s "${S}"/docs/reference/${d}/html docs/reference/${d}/html || die
-		done
-	fi
-}
-
-multilib_src_test() {
-	export XDG_CONFIG_DIRS="${EPREFIX}"/etc/xdg
-	export XDG_DATA_DIRS="${EPREFIX}"/usr/local/share:"${EPREFIX}"/usr/share
-	export G_DBUS_COOKIE_SHA1_KEYRING_DIR="${T}/temp"
-	export LC_TIME=C # bug #411967
-	python_setup
-
-	# Related test is a bit nitpicking
-	mkdir "$G_DBUS_COOKIE_SHA1_KEYRING_DIR"
-	chmod 0700 "$G_DBUS_COOKIE_SHA1_KEYRING_DIR"
-
-	# Hardened: gdb needs this, bug #338891
-	if host-is-pax ; then
-		pax-mark -mr "${BUILD_DIR}"/tests/.libs/assert-msg-test \
-			|| die "Hardened adjustment failed"
-	fi
-
-	# Need X for dbus-launch session X11 initialization
-	virtx emake check
-}
-
-multilib_src_install() {
-	gnome2_src_install completiondir="$(get_bashcompdir)"
-	keepdir /usr/$(get_libdir)/gio/modules
-}
-
-multilib_src_install_all() {
-	use doc && einstalldocs
-
-	if use utils ; then
-		python_replicate_script "${ED}"/usr/bin/gtester-report
-	else
-		rm "${ED}usr/bin/gtester-report"
-		rm "${ED}usr/share/man/man1/gtester-report.1"
-	fi
-
-	# Do not install charset.alias even if generated, leave it to libiconv
-	rm -f "${ED}/usr/lib/charset.alias"
-
-	# Don't install gdb python macros, bug 291328
-	rm -rf "${ED}/usr/share/gdb/" "${ED}/usr/share/glib-2.0/gdb/"
-}
-
-pkg_preinst() {
-	gnome2_pkg_preinst
-
-	# Make gschemas.compiled belong to glib alone
-	local cache="usr/share/glib-2.0/schemas/gschemas.compiled"
-
-	if [[ -e ${EROOT}${cache} ]]; then
-		cp "${EROOT}"${cache} "${ED}"/${cache} || die
-	else
-		touch "${ED}"/${cache} || die
-	fi
-
-	multilib_pkg_preinst() {
-		# Make giomodule.cache belong to glib alone
-		local cache="usr/$(get_libdir)/gio/giomodule.cache"
-
-		if [[ -e ${EROOT}${cache} ]]; then
-			cp "${EROOT}"${cache} "${ED}"/${cache} || die
-		else
-			touch "${ED}"/${cache} || die
-		fi
-	}
-
-	multilib_foreach_abi multilib_pkg_preinst
-}
-
-pkg_postinst() {
-	# force (re)generation of gschemas.compiled
-	GNOME2_ECLASS_GLIB_SCHEMAS="force"
-
-	gnome2_pkg_postinst
-
-	multilib_pkg_postinst() {
-		gnome2_giomodule_cache_update \
-			|| die "Update GIO modules cache failed (for ${ABI})"
-	}
-	multilib_foreach_abi multilib_pkg_postinst
-}
-
-pkg_postrm() {
-	gnome2_pkg_postrm
-
-	if [[ -z ${REPLACED_BY_VERSION} ]]; then
-		multilib_pkg_postrm() {
-			rm -f "${EROOT}"usr/$(get_libdir)/gio/giomodule.cache
-		}
-		multilib_foreach_abi multilib_pkg_postrm
-		rm -f "${EROOT}"usr/share/glib-2.0/schemas/gschemas.compiled
-	fi
-}
diff --git a/dev-libs/glib/glib-2.52.3.ebuild b/dev-libs/glib/glib-2.52.3.ebuild
deleted file mode 100644
index b650356604..0000000000
--- a/dev-libs/glib/glib-2.52.3.ebuild
+++ /dev/null
@@ -1,341 +0,0 @@
-# Copyright 1999-2020 Gentoo Authors
-# Distributed under the terms of the GNU General Public License v2
-
-# Until bug #537330 glib is a reverse dependency of pkgconfig and, then
-# adding new dependencies end up making stage3 to grow. Every addition needs
-# then to be think very closely.
-
-EAPI=6
-PYTHON_COMPAT=( python2_7 )
-# Completely useless with or without USE static-libs, people need to use
-# pkg-config
-GNOME2_LA_PUNT="yes"
-
-inherit autotools bash-completion-r1 flag-o-matic gnome2 libtool linux-info \
-	multilib multilib-minimal pax-utils python-r1 toolchain-funcs versionator virtualx
-
-DESCRIPTION="The GLib library of C routines"
-HOMEPAGE="https://www.gtk.org/"
-SRC_URI="${SRC_URI}
-	https://pkgconfig.freedesktop.org/releases/pkg-config-0.28.tar.gz" # pkg.m4 for eautoreconf
-CYGWINPORTS_GITREV="07d4a86e74b9b12a562b57ce5fa3a275bf0fe774"
-
-[[ -n ${CYGWINPORTS_GITREV} ]] &&
-SRC_URI+=" elibc_Cygwin? ( https://github.com/cygwinports/glib2.0/archive/${CYGWINPORTS_GITREV}.zip )"
-
-LICENSE="LGPL-2.1+"
-SLOT="2"
-IUSE="dbus debug fam kernel_linux +mime selinux static-libs systemtap test utils xattr"
-REQUIRED_USE="
-	utils? ( ${PYTHON_REQUIRED_USE} )
-	test? ( ${PYTHON_REQUIRED_USE} )
-"
-
-KEYWORDS="~ppc-aix ~x64-cygwin ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~m68k-mint ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
-
-# Added util-linux multilib dependency to have libmount support (which
-# is always turned on on linux systems, unless explicitly disabled, but
-# this ebuild does not do that anyway) (bug #599586)
-
-RDEPEND="
-	!<dev-util/gdbus-codegen-${PV}
-	>=dev-libs/libpcre-8.13:3[${MULTILIB_USEDEP},static-libs?]
-	>=virtual/libiconv-0-r1[${MULTILIB_USEDEP}]
-	>=virtual/libffi-3.0.13-r1[${MULTILIB_USEDEP}]
-	>=virtual/libintl-0-r2[${MULTILIB_USEDEP}]
-	>=sys-libs/zlib-1.2.8-r1[${MULTILIB_USEDEP}]
-	kernel_linux? ( sys-apps/util-linux[${MULTILIB_USEDEP}] )
-	selinux? ( >=sys-libs/libselinux-2.2.2-r5[${MULTILIB_USEDEP}] )
-	xattr? ( >=sys-apps/attr-2.4.47-r1[${MULTILIB_USEDEP}] )
-	fam? ( >=virtual/fam-0-r1[${MULTILIB_USEDEP}] )
-	utils? (
-		${PYTHON_DEPS}
-		>=dev-util/gdbus-codegen-${PV}[${PYTHON_USEDEP}]
-		virtual/libelf:0=
-	)
-"
-DEPEND="${RDEPEND}
-	app-text/docbook-xml-dtd:4.1.2
-	>=dev-libs/libxslt-1.0
-	>=sys-devel/gettext-0.11
-	>=dev-util/gtk-doc-am-1.20
-	systemtap? ( >=dev-util/systemtap-1.3 )
-	test? (
-		sys-devel/gdb
-		${PYTHON_DEPS}
-		>=dev-util/gdbus-codegen-${PV}[${PYTHON_USEDEP}]
-		>=sys-apps/dbus-1.2.14 )
-	!<dev-util/gtk-doc-1.15-r2
-"
-PDEPEND="!<gnome-base/gvfs-1.6.4-r990
-	dbus? ( gnome-base/dconf )
-	mime? ( x11-misc/shared-mime-info )
-"
-# shared-mime-info needed for gio/xdgmime, bug #409481
-# dconf is needed to be able to save settings, bug #498436
-# Earlier versions of gvfs do not work with glib
-
-MULTILIB_CHOST_TOOLS=(
-	/usr/bin/gio-querymodules$(get_exeext)
-)
-
-pkg_setup() {
-	if use kernel_linux ; then
-		CONFIG_CHECK="~INOTIFY_USER"
-		if use test ; then
-			CONFIG_CHECK="~IPV6"
-			WARNING_IPV6="Your kernel needs IPV6 support for running some tests, skipping them."
-		fi
-		linux-info_pkg_setup
-	fi
-}
-
-src_prepare() {
-	# Prevent build failure in stage3 where pkgconfig is not available, bug #481056
-	mv -f "${WORKDIR}"/pkg-config-*/pkg.m4 "${S}"/m4macros/ || die
-
-	if use test; then
-		# Disable tests requiring dev-util/desktop-file-utils when not installed, bug #286629, upstream bug #629163
-		if ! has_version dev-util/desktop-file-utils ; then
-			ewarn "Some tests will be skipped due dev-util/desktop-file-utils not being present on your system,"
-			ewarn "think on installing it to get these tests run."
-			sed -i -e "/appinfo\/associations/d" gio/tests/appinfo.c || die
-			sed -i -e "/g_test_add_func/d" gio/tests/desktop-app-info.c || die
-		fi
-
-		# gdesktopappinfo requires existing terminal (gnome-terminal or any
-		# other), falling back to xterm if one doesn't exist
-		if ! has_version x11-terms/xterm && ! has_version x11-terms/gnome-terminal ; then
-			ewarn "Some tests will be skipped due to missing terminal program"
-			sed -i -e "/appinfo\/launch/d" gio/tests/appinfo.c || die
-		fi
-
-		# https://bugzilla.gnome.org/show_bug.cgi?id=722604
-		sed -i -e "/timer\/stop/d" glib/tests/timer.c || die
-		sed -i -e "/timer\/basic/d" glib/tests/timer.c || die
-
-		ewarn "Tests for search-utils have been skipped"
-		sed -i -e "/search-utils/d" glib/tests/Makefile.am || die
-	else
-		# Don't build tests, also prevents extra deps, bug #512022
-		sed -i -e 's/ tests//' {.,gio,glib}/Makefile.am || die
-	fi
-
-	# gdbus-codegen is a separate package
-	eapply "${FILESDIR}"/${PN}-2.50.0-external-gdbus-codegen.patch
-
-	# Leave python shebang alone - handled by python_replicate_script
-	# We could call python_setup and give configure a valid --with-python
-	# arg, but that would mean a build dep on python when USE=utils.
-	sed -e '/${PYTHON}/d' \
-		-i glib/Makefile.{am,in} || die
-
-	if [[ -n ${CYGWINPORTS_GITREV} ]] && use elibc_Cygwin; then
-	    local p d="${WORKDIR}/glib2.0-${CYGWINPORTS_GITREV}"
-	    for p in $(
-		    eval "$(sed -ne '/PATCH_URI="/,/"/p' < "${d}"/glib2.0.cygport)"
-		    echo ${PATCH_URI}
-	    ); do
-		    # Cygwin hasn't updated to 2.50.2 yet, which has patches merged.
-		    [[ ${p} == 2.46-glocalfilemonitor.patch ]] && continue
-		    epatch "${d}/${p}"
-	    done
-	fi
-
-	# make default sane for us
-	if use prefix ; then
-		sed -i -e "s:/usr/local:${EPREFIX}/usr:" gio/xdgmime/xdgmime.c || die
-		# bug #308609, without path, bug #314057
-		export PERL=perl
-	fi
-
-	if [[ ${CHOST} == *-solaris* ]] ; then
-		# fix standards conflicts
-		sed -i \
-			-e 's/\<\(_XOPEN_SOURCE_EXTENDED\)\>/\1_DISABLED/' \
-			-e '/\<_XOPEN_SOURCE\>/s/  2,/600,/' \
-			configure.ac || die
-		sed -i -e '/#define\s\+_POSIX_SOURCE/d' \
-			glib/giounix.c || die
-	fi
-
-	# Also needed to prevent cross-compile failures, see bug #267603
-	eautoreconf
-
-	gnome2_src_prepare
-}
-
-multilib_src_configure() {
-	# Avoid circular depend with dev-util/pkgconfig and
-	# native builds (cross-compiles won't need pkg-config
-	# in the target ROOT to work here)
-	if ! tc-is-cross-compiler && ! $(tc-getPKG_CONFIG) --version >& /dev/null; then
-		if has_version sys-apps/dbus; then
-			export DBUS1_CFLAGS="-I${EPREFIX}/usr/include/dbus-1.0 -I${EPREFIX}/usr/$(get_libdir)/dbus-1.0/include"
-			export DBUS1_LIBS="-ldbus-1"
-		fi
-		export LIBFFI_CFLAGS="-I$(echo ${EPREFIX}/usr/$(get_libdir)/libffi-*/include)"
-		export LIBFFI_LIBS="-lffi"
-		export PCRE_CFLAGS=" " # test -n "$PCRE_CFLAGS" needs to pass
-		export PCRE_LIBS="-lpcre"
-	fi
-
-	# These configure tests don't work when cross-compiling.
-	if tc-is-cross-compiler ; then
-		# https://bugzilla.gnome.org/show_bug.cgi?id=756473
-		case ${CHOST} in
-		hppa*|metag*) export glib_cv_stack_grows=yes ;;
-		*)            export glib_cv_stack_grows=no ;;
-		esac
-		# https://bugzilla.gnome.org/show_bug.cgi?id=756474
-		export glib_cv_uscore=no
-		# https://bugzilla.gnome.org/show_bug.cgi?id=756475
-		export ac_cv_func_posix_get{pwuid,grgid}_r=yes
-	fi
-
-	local myconf
-
-	case "${CHOST}" in
-		*-mingw*) myconf="${myconf} --with-threads=win32" ;;
-		*)        myconf="${myconf} --with-threads=posix" ;;
-	esac
-
-	# non-glibc platforms use GNU libiconv, but configure needs to know about
-	# that not to get confused when it finds something outside the prefix too
-	if use !elibc_glibc ; then
-		myconf="${myconf} --with-libiconv=gnu"
-		# add the libdir for libtool, otherwise it'll make love with system
-		# installed libiconv. Automake passes LDFLAGS before local libs,
-		# add this to LIBS instead to come after local lib dirs.
-		append-libs "-L${EPREFIX}/usr/$(get_libdir)"
-	fi
-
-	# libelf used only by the gresource bin
-	ECONF_SOURCE="${S}" gnome2_src_configure ${myconf} \
-		$(usex debug --enable-debug=yes ' ') \
-		$(use_enable xattr) \
-		$(use_enable fam) \
-		$(use_enable kernel_linux libmount) \
-		$(use_enable selinux) \
-		$(use_enable static-libs static) \
-		$(use_enable systemtap dtrace) \
-		$(use_enable systemtap systemtap) \
-		$(multilib_native_use_enable utils libelf) \
-		--disable-compile-warnings \
-		--enable-man \
-		--with-pcre=system \
-		--with-xml-catalog="${EPREFIX}/etc/xml/catalog"
-
-	if multilib_is_native_abi; then
-		local d
-		for d in glib gio gobject; do
-			ln -s "${S}"/docs/reference/${d}/html docs/reference/${d}/html || die
-		done
-	fi
-}
-
-multilib_src_test() {
-	export XDG_CONFIG_DIRS="${EPREFIX}"/etc/xdg
-	export XDG_DATA_DIRS="${EPREFIX}"/usr/local/share:/usr/share
-	export G_DBUS_COOKIE_SHA1_KEYRING_DIR="${T}/temp"
-	export LC_TIME=C # bug #411967
-	unset GSETTINGS_BACKEND # bug #596380
-	python_setup
-
-	# Related test is a bit nitpicking
-	mkdir "$G_DBUS_COOKIE_SHA1_KEYRING_DIR"
-	chmod 0700 "$G_DBUS_COOKIE_SHA1_KEYRING_DIR"
-
-	# Hardened: gdb needs this, bug #338891
-	if host-is-pax ; then
-		pax-mark -mr "${BUILD_DIR}"/tests/.libs/assert-msg-test \
-			|| die "Hardened adjustment failed"
-	fi
-
-	# Need X for dbus-launch session X11 initialization
-	virtx emake check
-}
-
-multilib_src_install() {
-	gnome2_src_install completiondir="$(get_bashcompdir)"
-	keepdir /usr/$(get_libdir)/gio/modules
-}
-
-multilib_src_install_all() {
-	einstalldocs
-
-	if use utils ; then
-		python_replicate_script "${ED}"/usr/bin/gtester-report
-	else
-		rm "${ED}usr/bin/gtester-report"
-		rm "${ED}usr/share/man/man1/gtester-report.1"
-	fi
-
-	# Do not install charset.alias even if generated, leave it to libiconv
-	rm -f "${ED}/usr/lib/charset.alias"
-
-	# Don't install gdb python macros, bug 291328
-	rm -rf "${ED}/usr/share/gdb/" "${ED}/usr/share/glib-2.0/gdb/"
-}
-
-pkg_preinst() {
-	gnome2_pkg_preinst
-
-	# Make gschemas.compiled belong to glib alone
-	local cache="usr/share/glib-2.0/schemas/gschemas.compiled"
-
-	if [[ -e ${EROOT}${cache} ]]; then
-		cp "${EROOT}"${cache} "${ED}"/${cache} || die
-	else
-		touch "${ED}"/${cache} || die
-	fi
-
-	multilib_pkg_preinst() {
-		# Make giomodule.cache belong to glib alone
-		local cache="usr/$(get_libdir)/gio/modules/giomodule.cache"
-
-		if [[ -e ${EROOT}${cache} ]]; then
-			cp "${EROOT}"${cache} "${ED}"/${cache} || die
-		else
-			touch "${ED}"/${cache} || die
-		fi
-	}
-
-	# Don't run the cache ownership when cross-compiling, as it would end up with an empty cache
-	# file due to inability to create it and GIO might not look at any of the modules there
-	if ! tc-is-cross-compiler ; then
-		multilib_foreach_abi multilib_pkg_preinst
-	fi
-}
-
-pkg_postinst() {
-	# force (re)generation of gschemas.compiled
-	GNOME2_ECLASS_GLIB_SCHEMAS="force"
-
-	gnome2_pkg_postinst
-
-	multilib_pkg_postinst() {
-		gnome2_giomodule_cache_update \
-			|| die "Update GIO modules cache failed (for ${ABI})"
-	}
-	if ! tc-is-cross-compiler ; then
-		multilib_foreach_abi multilib_pkg_postinst
-	else
-		ewarn "Updating of GIO modules cache skipped due to cross-compilation."
-		ewarn "You might want to run gio-querymodules manually on the target for"
-		ewarn "your final image for performance reasons and re-run it when packages"
-		ewarn "installing GIO modules get upgraded or added to the image."
-	fi
-}
-
-pkg_postrm() {
-	gnome2_pkg_postrm
-
-	if [[ -z ${REPLACED_BY_VERSION} ]]; then
-		multilib_pkg_postrm() {
-			rm -f "${EROOT}"usr/$(get_libdir)/gio/modules/giomodule.cache
-		}
-		multilib_foreach_abi multilib_pkg_postrm
-		rm -f "${EROOT}"usr/share/glib-2.0/schemas/gschemas.compiled
-	fi
-}
diff --git a/dev-libs/glib/glib-2.56.2.ebuild b/dev-libs/glib/glib-2.56.2.ebuild
index 791f5bf75b..b25d240cda 100644
--- a/dev-libs/glib/glib-2.56.2.ebuild
+++ b/dev-libs/glib/glib-2.56.2.ebuild
@@ -2,7 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=6
-PYTHON_COMPAT=( python{2_7,3_5,3_6,3_7} )
+PYTHON_COMPAT=( python{2_7,3_5,3_6,3_7,3_8,3_9} ) # only for tests
 GNOME2_EAUTORECONF=yes
 
 inherit autotools bash-completion-r1 flag-o-matic gnome2 libtool linux-info \
diff --git a/dev-libs/glib/glib-2.66.2.ebuild b/dev-libs/glib/glib-2.66.2.ebuild
new file mode 100644
index 0000000000..7cb2271077
--- /dev/null
+++ b/dev-libs/glib/glib-2.66.2.ebuild
@@ -0,0 +1,300 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+PYTHON_COMPAT=( python3_{6,7,8,9} )
+
+inherit flag-o-matic gnome.org gnome2-utils linux-info meson multilib multilib-minimal python-any-r1 toolchain-funcs xdg
+
+DESCRIPTION="The GLib library of C routines"
+HOMEPAGE="https://www.gtk.org/"
+
+LICENSE="LGPL-2.1+"
+SLOT="2"
+IUSE="dbus debug elibc_glibc fam gtk-doc kernel_linux +mime selinux static-libs sysprof systemtap test utils xattr"
+RESTRICT="!test? ( test )"
+
+# meson/ninja buildsystem, breaks of course (at least on Solaris), most
+# likely will introduce problems during bootstrap too
+#KEYWORDS="~ppc-aix ~amd64-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos ~m68k-mint ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris ~x86-winnt"
+
+# * libelf isn't strictly necessary, but makes gresource tool more useful, and
+# the check is automagic in gio/meson.build. gresource is not a multilib tool
+# right now, thus it doesn't matter if non-native ABI libelf exists or not
+# (non-native binary is overwritten, it doesn't matter if libelf was linked to).
+# * elfutils (via libelf) does not build on Windows. gresources are not embedded
+# within ELF binaries on that platform anyway and inspecting ELF binaries from
+# other platforms is not that useful so exclude the dependency in this case.
+# * Technically static-libs is needed on zlib, util-linux and perhaps more, but
+# these are used by GIO, which glib[static-libs] consumers don't really seem
+# to need at all, thus not imposing the deps for now and once some consumers
+# are actually found to static link libgio-2.0.a, we can revisit and either add
+# them or just put the (build) deps in that rare consumer instead of recursive
+# RDEPEND here (due to lack of recursive DEPEND).
+RDEPEND="
+	!<dev-util/gdbus-codegen-2.66.0
+	>=virtual/libiconv-0-r1[${MULTILIB_USEDEP}]
+	>=dev-libs/libpcre-8.31:3[${MULTILIB_USEDEP},static-libs?]
+	>=dev-libs/libffi-3.0.13-r1:=[${MULTILIB_USEDEP}]
+	>=sys-libs/zlib-1.2.8-r1[${MULTILIB_USEDEP}]
+	>=virtual/libintl-0-r2[${MULTILIB_USEDEP}]
+	!prefix-stack? ( kernel_linux? ( >=sys-apps/util-linux-2.23[${MULTILIB_USEDEP}] ) )
+	selinux? ( >=sys-libs/libselinux-2.2.2-r5[${MULTILIB_USEDEP}] )
+	xattr? ( !elibc_glibc? ( >=sys-apps/attr-2.4.47-r1[${MULTILIB_USEDEP}] ) )
+	kernel_linux? ( virtual/libelf:0= )
+	fam? ( >=virtual/fam-0-r1[${MULTILIB_USEDEP}] )
+"
+DEPEND="${RDEPEND}
+	sysprof? ( >=dev-util/sysprof-capture-3.38:4[${MULTILIB_USEDEP}] )
+"
+# libxml2 used for optional tests that get automatically skipped
+BDEPEND="
+	app-text/docbook-xsl-stylesheets
+	dev-libs/libxslt
+	>=sys-devel/gettext-0.19.8
+	gtk-doc? ( >=dev-util/gtk-doc-1.32-r2
+		app-text/docbook-xml-dtd:4.2
+		app-text/docbook-xml-dtd:4.5 )
+	systemtap? ( >=dev-util/systemtap-1.3 )
+	${PYTHON_DEPS}
+	test? ( >=sys-apps/dbus-1.2.14 )
+	virtual/pkgconfig
+"
+# TODO: >=dev-util/gdbus-codegen-${PV} test dep once we modify gio/tests/meson.build to use external gdbus-codegen
+
+PDEPEND="
+	dbus? ( gnome-base/dconf )
+	mime? ( x11-misc/shared-mime-info )
+"
+# shared-mime-info needed for gio/xdgmime, bug #409481
+# dconf is needed to be able to save settings, bug #498436
+
+MULTILIB_CHOST_TOOLS=(
+	/usr/bin/gio-querymodules$(get_exeext)
+)
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.64.1-mark-gdbus-server-auth-test-flaky.patch
+)
+
+pkg_setup() {
+	if use kernel_linux ; then
+		CONFIG_CHECK="~INOTIFY_USER"
+		if use test ; then
+			CONFIG_CHECK="~IPV6"
+			WARNING_IPV6="Your kernel needs IPV6 support for running some tests, skipping them."
+		fi
+		linux-info_pkg_setup
+	fi
+	python-any-r1_pkg_setup
+}
+
+src_prepare() {
+	if use test; then
+		# TODO: Review the test exclusions, especially now with meson
+		# Disable tests requiring dev-util/desktop-file-utils when not installed, bug #286629, upstream bug #629163
+		if ! has_version dev-util/desktop-file-utils ; then
+			ewarn "Some tests will be skipped due dev-util/desktop-file-utils not being present on your system,"
+			ewarn "think on installing it to get these tests run."
+			sed -i -e "/appinfo\/associations/d" gio/tests/appinfo.c || die
+			sed -i -e "/g_test_add_func/d" gio/tests/desktop-app-info.c || die
+		fi
+
+		# gdesktopappinfo requires existing terminal (gnome-terminal or any
+		# other), falling back to xterm if one doesn't exist
+		#if ! has_version x11-terms/xterm && ! has_version x11-terms/gnome-terminal ; then
+		#	ewarn "Some tests will be skipped due to missing terminal program"
+		# These tests seem to sometimes fail even with a terminal; skip for now and reevulate with meson
+		# Also try https://gitlab.gnome.org/GNOME/glib/issues/1601 once ready for backport (or in a bump) and file new issue if still fails
+		sed -i -e "/appinfo\/launch/d" gio/tests/appinfo.c || die
+		# desktop-app-info/launch* might fail similarly
+		sed -i -e "/desktop-app-info\/launch-as-manager/d" gio/tests/desktop-app-info.c || die
+		#fi
+
+		# https://bugzilla.gnome.org/show_bug.cgi?id=722604
+		sed -i -e "/timer\/stop/d" glib/tests/timer.c || die
+		sed -i -e "/timer\/basic/d" glib/tests/timer.c || die
+
+		ewarn "Tests for search-utils have been skipped"
+		sed -i -e "/search-utils/d" glib/tests/meson.build || die
+
+		# Play nice with network-sandbox, but this approach would defeat the purpose of the test
+		#sed -i -e "s/localhost/127.0.0.1/g" gio/tests/gsocketclient-slow.c || die
+	else
+		# Don't build tests, also prevents extra deps, bug #512022
+		sed -i -e '/subdir.*tests/d' {.,gio,glib}/meson.build || die
+	fi
+
+	# Don't build fuzzing binaries - not used
+	sed -i -e '/subdir.*fuzzing/d' meson.build || die
+
+	# gdbus-codegen is a separate package
+	sed -i -e '/install_dir/d' gio/gdbus-2.0/codegen/meson.build || die
+
+	# Same kind of meson-0.50 issue with some installed-tests files; will likely be fixed upstream soon
+	sed -i -e '/install_dir/d' gio/tests/meson.build || die
+
+	cat > "${T}/glib-test-ld-wrapper" <<-EOF
+		#!/usr/bin/env sh
+		exec \${LD:-ld} "\$@"
+	EOF
+	chmod a+x "${T}/glib-test-ld-wrapper" || die
+	sed -i -e "s|'ld'|'${T}/glib-test-ld-wrapper'|g" gio/tests/meson.build || die
+
+	# make default sane for us
+	if use prefix ; then
+		sed -i -e "s:/usr/local:${EPREFIX}/usr:" gio/xdgmime/xdgmime.c || die
+		# bug #308609, without path, bug #314057
+		export PERL=perl
+	fi
+
+	xdg_src_prepare
+	gnome2_environment_reset
+	# TODO: python_name sedding for correct python shebang? Might be relevant mainly for glib-utils only
+}
+
+multilib_src_configure() {
+	if use debug; then
+		append-cflags -DG_ENABLE_DEBUG
+	else
+		append-cflags -DG_DISABLE_CAST_CHECKS # https://gitlab.gnome.org/GNOME/glib/issues/1833
+	fi
+
+	# TODO: figure a way to pass appropriate values for all cross properties that glib uses (search for get_cross_property)
+	#if tc-is-cross-compiler ; then
+		# https://bugzilla.gnome.org/show_bug.cgi?id=756473
+		# TODO-meson: This should be in meson cross file as 'growing_stack' property; and more, look at get_cross_property
+		#case ${CHOST} in
+		#hppa*|metag*) export glib_cv_stack_grows=yes ;;
+		#*)            export glib_cv_stack_grows=no ;;
+		#esac
+	#fi
+
+	local emesonargs=(
+		-Ddefault_library=$(usex static-libs both shared)
+		$(meson_feature selinux)
+		$(meson_use xattr)
+		-Dlibmount=enabled # only used if host_system == 'linux'
+		-Dinternal_pcre=false
+		-Dman=true
+		$(meson_use systemtap dtrace)
+		$(meson_use systemtap)
+		$(meson_feature sysprof)
+		-Dgtk_doc=$(multilib_native_usex gtk-doc true false)
+		$(meson_use fam)
+		-Dinstalled_tests=false
+		-Dnls=enabled
+		-Doss_fuzz=disabled
+	)
+	meson_src_configure
+}
+
+multilib_src_compile() {
+	meson_src_compile
+}
+
+multilib_src_test() {
+	export XDG_CONFIG_DIRS="${EPREFIX}"/etc/xdg
+	export XDG_DATA_DIRS="${EPREFIX}"/usr/local/share:/usr/share
+	export G_DBUS_COOKIE_SHA1_KEYRING_DIR="${T}/temp"
+	export LC_TIME=C # bug #411967
+	unset GSETTINGS_BACKEND # bug #596380
+	python_setup
+
+	# Related test is a bit nitpicking
+	mkdir "$G_DBUS_COOKIE_SHA1_KEYRING_DIR"
+	chmod 0700 "$G_DBUS_COOKIE_SHA1_KEYRING_DIR"
+
+	meson_src_test --timeout-multiplier 2 --no-suite flaky
+}
+
+multilib_src_install() {
+	meson_src_install
+	keepdir /usr/$(get_libdir)/gio/modules
+}
+
+multilib_src_install_all() {
+	einstalldocs
+
+	# These are installed by dev-util/glib-utils
+	# TODO: With patching we might be able to get rid of the python-any deps and removals, and test depend on glib-utils instead; revisit now with meson
+	rm "${ED}/usr/bin/glib-genmarshal" || die
+	rm "${ED}/usr/share/man/man1/glib-genmarshal.1" || die
+	rm "${ED}/usr/bin/glib-mkenums" || die
+	rm "${ED}/usr/share/man/man1/glib-mkenums.1" || die
+	rm "${ED}/usr/bin/gtester-report" || die
+	rm "${ED}/usr/share/man/man1/gtester-report.1" || die
+	# gdbus-codegen manpage installed by dev-util/gdbus-codegen
+	rm "${ED}/usr/share/man/man1/gdbus-codegen.1" || die
+}
+
+pkg_preinst() {
+	xdg_pkg_preinst
+
+	# Make gschemas.compiled belong to glib alone
+	local cache="/usr/share/glib-2.0/schemas/gschemas.compiled"
+
+	if [[ -e ${EROOT}${cache} ]]; then
+		cp "${EROOT}"${cache} "${ED}"/${cache} || die
+	else
+		touch "${ED}"${cache} || die
+	fi
+
+	multilib_pkg_preinst() {
+		# Make giomodule.cache belong to glib alone
+		local cache="/usr/$(get_libdir)/gio/modules/giomodule.cache"
+
+		if [[ -e ${EROOT}${cache} ]]; then
+			cp "${EROOT}"${cache} "${ED}"${cache} || die
+		else
+			touch "${ED}"${cache} || die
+		fi
+	}
+
+	# Don't run the cache ownership when cross-compiling, as it would end up with an empty cache
+	# file due to inability to create it and GIO might not look at any of the modules there
+	if ! tc-is-cross-compiler ; then
+		multilib_foreach_abi multilib_pkg_preinst
+	fi
+}
+
+pkg_postinst() {
+	xdg_pkg_postinst
+	# glib installs no schemas itself, but we force update for fresh install in case
+	# something has dropped in a schemas file without direct glib dep; and for upgrades
+	# in case the compiled schema format could have changed
+	gnome2_schemas_update
+
+	multilib_pkg_postinst() {
+		gnome2_giomodule_cache_update \
+			|| die "Update GIO modules cache failed (for ${ABI})"
+	}
+	if ! tc-is-cross-compiler ; then
+		multilib_foreach_abi multilib_pkg_postinst
+	else
+		ewarn "Updating of GIO modules cache skipped due to cross-compilation."
+		ewarn "You might want to run gio-querymodules manually on the target for"
+		ewarn "your final image for performance reasons and re-run it when packages"
+		ewarn "installing GIO modules get upgraded or added to the image."
+	fi
+
+	for v in ${REPLACING_VERSIONS}; do
+		if ver_test "$v" "-lt" "2.63.6"; then
+			ewarn "glib no longer installs the gio-launch-desktop binary. You may need"
+			ewarn "to restart your session for \"Open With\" dialogs to work."
+		fi
+	done
+}
+
+pkg_postrm() {
+	xdg_pkg_postrm
+	gnome2_schemas_update
+
+	if [[ -z ${REPLACED_BY_VERSION} ]]; then
+		multilib_pkg_postrm() {
+			rm -f "${EROOT}"/usr/$(get_libdir)/gio/modules/giomodule.cache
+		}
+		multilib_foreach_abi multilib_pkg_postrm
+		rm -f "${EROOT}"/usr/share/glib-2.0/schemas/gschemas.compiled
+	fi
+}
diff --git a/dev-libs/glib/metadata.xml b/dev-libs/glib/metadata.xml
index b73f9ed910..c1bb61a327 100644
--- a/dev-libs/glib/metadata.xml
+++ b/dev-libs/glib/metadata.xml
@@ -1,23 +1,35 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
 <pkgmetadata>
-  <maintainer type="project">
-    <email>gnome@gentoo.org</email>
-    <name>Gentoo GNOME Desktop</name>
-  </maintainer>
-  <use>
-	<flag name="dbus">Enable dependencies required by glib libraries
-		using dbus service to manage settings saving</flag>
-  	<flag name="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.</flag>
-	<flag name="systemtap">Build support for profiling and tracing using 
-		<pkg>dev-util/systemtap</pkg></flag>
-	<flag name="utils">Install gtester-report utility to generate test
-		report files for your software; build gresource utility with
-		ELF support.</flag>
-  </use>
-  <upstream>
-    <remote-id type="cpe">cpe:/a:gnome:glib</remote-id>
-  </upstream>
+	<maintainer type="project">
+		<email>gnome@gentoo.org</email>
+		<name>Gentoo GNOME Desktop</name>
+	</maintainer>
+	<use>
+		<flag name="dbus">
+			Enable dependencies required by glib libraries
+			using dbus service to manage settings saving
+		</flag>
+		<flag name="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.
+		</flag>
+		<flag name="systemtap">
+			Build support for profiling and tracing using
+			<pkg>dev-util/systemtap</pkg>
+		</flag>
+		<flag name="sysprof">
+			Enable profiling data capture support using
+			<pkg>dev-util/sysprof-capture</pkg>
+		</flag>
+		<flag name="utils">
+			Install gtester-report utility to generate test
+			report files for your software; build gresource utility with
+			ELF support.
+		</flag>
+	</use>
+	<upstream>
+		<remote-id type="cpe">cpe:/a:gnome:glib</remote-id>
+	</upstream>
 </pkgmetadata>