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-rw-r--r--profiles/package.mask6
-rw-r--r--sys-devel/llvm/files/clang-3.8-default-libs.patch106
-rw-r--r--sys-devel/llvm/files/clang-3.8-musl-support.patch108
-rw-r--r--sys-devel/llvm/files/llvm-3.8-musl-fixes.patch33
-rw-r--r--sys-devel/llvm/files/llvm-3.8-musl-support.patch164
-rw-r--r--sys-devel/llvm/llvm-3.8.1-r1.ebuild560
-rw-r--r--sys-devel/llvm/metadata.xml3
7 files changed, 980 insertions, 0 deletions
diff --git a/profiles/package.mask b/profiles/package.mask
index a66b5ae78db2..3fe3d3743f27 100644
--- a/profiles/package.mask
+++ b/profiles/package.mask
@@ -30,6 +30,12 @@
#--- END OF EXAMPLES ---
+# Michał Górny <mgorny@gentoo.org> (1 Aug 2016)
+# Masked for testing, handling keywords and collecting more changes
+# before unleashing the huge rebuild on all users. Has gotten musl
+# support and switches to control the default rtlib and C++ library.
+=sys-devel/llvm-3.8.1-r1
+
# Johannes Huber <johu@gentoo.org> (1 Aug 2016)
# Masked for removal in 30 days. Dead by upstream. Last release
# with 15.08. Exported to kde-sunset overlay.
diff --git a/sys-devel/llvm/files/clang-3.8-default-libs.patch b/sys-devel/llvm/files/clang-3.8-default-libs.patch
new file mode 100644
index 000000000000..8d172f746895
--- /dev/null
+++ b/sys-devel/llvm/files/clang-3.8-default-libs.patch
@@ -0,0 +1,106 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index ad2ac42..18dcfbe 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -196,6 +196,24 @@ set(GCC_INSTALL_PREFIX "" CACHE PATH "Directory where gcc is installed." )
+ set(DEFAULT_SYSROOT "" CACHE PATH
+ "Default <path> to all compiler invocations for --sysroot=<path>." )
+
++set(CLANG_DEFAULT_CXX_STDLIB "" CACHE STRING
++ "Default C++ stdlib to use (libstdc++ or libc++)")
++if (NOT(CLANG_DEFAULT_CXX_STDLIB STREQUAL "" OR
++ CLANG_DEFAULT_CXX_STDLIB STREQUAL "libstdc++" OR
++ CLANG_DEFAULT_CXX_STDLIB STREQUAL "libc++"))
++ message(WARNING "Resetting default C++ stdlib to use platform default")
++ set(CLANG_DEFAULT_CXX_STDLIB "")
++endif()
++
++set(CLANG_DEFAULT_RTLIB "" CACHE STRING
++ "Default runtime library to use (libgcc or compiler-rt)")
++if (NOT(CLANG_DEFAULT_RTLIB STREQUAL "" OR
++ CLANG_DEFAULT_RTLIB STREQUAL "libgcc" OR
++ CLANG_DEFAULT_RTLIB STREQUAL "compiler-rt"))
++ message(WARNING "Resetting default rtlib to use platform default")
++ set(CLANG_DEFAULT_RTLIB "")
++endif()
++
+ set(CLANG_DEFAULT_OPENMP_RUNTIME "libomp" CACHE STRING
+ "Default OpenMP runtime used by -fopenmp.")
+
+diff --git a/include/clang/Config/config.h.cmake b/include/clang/Config/config.h.cmake
+index b7486f3..eb8aa27 100644
+--- a/include/clang/Config/config.h.cmake
++++ b/include/clang/Config/config.h.cmake
+@@ -8,6 +8,12 @@
+ /* Bug report URL. */
+ #define BUG_REPORT_URL "${BUG_REPORT_URL}"
+
++/* Default C++ stdlib to use. */
++#define CLANG_DEFAULT_CXX_STDLIB "${CLANG_DEFAULT_CXX_STDLIB}"
++
++/* Default runtime library to use. */
++#define CLANG_DEFAULT_RTLIB "${CLANG_DEFAULT_RTLIB}"
++
+ /* Default OpenMP runtime used by -fopenmp. */
+ #define CLANG_DEFAULT_OPENMP_RUNTIME "${CLANG_DEFAULT_OPENMP_RUNTIME}"
+
+diff --git a/lib/Driver/ToolChain.cpp b/lib/Driver/ToolChain.cpp
+index cbbd485..3af7f8a 100644
+--- a/lib/Driver/ToolChain.cpp
++++ b/lib/Driver/ToolChain.cpp
+@@ -9,6 +9,7 @@
+
+ #include "Tools.h"
+ #include "clang/Basic/ObjCRuntime.h"
++#include "clang/Config/config.h"
+ #include "clang/Driver/Action.h"
+ #include "clang/Driver/Driver.h"
+ #include "clang/Driver/DriverDiagnostic.h"
+@@ -520,29 +521,29 @@ void ToolChain::addProfileRTLibs(const llvm::opt::ArgList &Args,
+
+ ToolChain::RuntimeLibType ToolChain::GetRuntimeLibType(
+ const ArgList &Args) const {
+- if (Arg *A = Args.getLastArg(options::OPT_rtlib_EQ)) {
+- StringRef Value = A->getValue();
+- if (Value == "compiler-rt")
+- return ToolChain::RLT_CompilerRT;
+- if (Value == "libgcc")
+- return ToolChain::RLT_Libgcc;
+- getDriver().Diag(diag::err_drv_invalid_rtlib_name)
+- << A->getAsString(Args);
+- }
++ const Arg* A = Args.getLastArg(options::OPT_rtlib_EQ);
++ StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_RTLIB;
++
++ if (LibName == "compiler-rt")
++ return ToolChain::RLT_CompilerRT;
++ if (LibName == "libgcc")
++ return ToolChain::RLT_Libgcc;
++ if (A)
++ getDriver().Diag(diag::err_drv_invalid_rtlib_name) << A->getAsString(Args);
+
+ return GetDefaultRuntimeLibType();
+ }
+
+ ToolChain::CXXStdlibType ToolChain::GetCXXStdlibType(const ArgList &Args) const{
+- if (Arg *A = Args.getLastArg(options::OPT_stdlib_EQ)) {
+- StringRef Value = A->getValue();
+- if (Value == "libc++")
+- return ToolChain::CST_Libcxx;
+- if (Value == "libstdc++")
+- return ToolChain::CST_Libstdcxx;
+- getDriver().Diag(diag::err_drv_invalid_stdlib_name)
+- << A->getAsString(Args);
+- }
++ const Arg* A = Args.getLastArg(options::OPT_stdlib_EQ);
++ StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_CXX_STDLIB;
++
++ if (LibName == "libc++")
++ return ToolChain::CST_Libcxx;
++ if (LibName == "libstdc++")
++ return ToolChain::CST_Libstdcxx;
++ if (A)
++ getDriver().Diag(diag::err_drv_invalid_stdlib_name) << A->getAsString(Args);
+
+ return ToolChain::CST_Libstdcxx;
+ }
diff --git a/sys-devel/llvm/files/clang-3.8-musl-support.patch b/sys-devel/llvm/files/clang-3.8-musl-support.patch
new file mode 100644
index 000000000000..8a234e6277ab
--- /dev/null
+++ b/sys-devel/llvm/files/clang-3.8-musl-support.patch
@@ -0,0 +1,108 @@
+diff --git a/lib/Basic/Targets.cpp b/lib/Basic/Targets.cpp
+index 9c6eaff..92872ab 100644
+--- a/lib/Basic/Targets.cpp
++++ b/lib/Basic/Targets.cpp
+@@ -4513,6 +4513,8 @@ public:
+ case llvm::Triple::Android:
+ case llvm::Triple::GNUEABI:
+ case llvm::Triple::GNUEABIHF:
++ case llvm::Triple::MuslEABI:
++ case llvm::Triple::MuslEABIHF:
+ setABI("aapcs-linux");
+ break;
+ case llvm::Triple::EABIHF:
+diff --git a/lib/CodeGen/TargetInfo.cpp b/lib/CodeGen/TargetInfo.cpp
+index 04edc0c..298b2cc 100644
+--- a/lib/CodeGen/TargetInfo.cpp
++++ b/lib/CodeGen/TargetInfo.cpp
+@@ -4811,6 +4811,8 @@ public:
+ case llvm::Triple::EABIHF:
+ case llvm::Triple::GNUEABI:
+ case llvm::Triple::GNUEABIHF:
++ case llvm::Triple::MuslEABI:
++ case llvm::Triple::MuslEABIHF:
+ return true;
+ default:
+ return false;
+@@ -4821,6 +4823,7 @@ public:
+ switch (getTarget().getTriple().getEnvironment()) {
+ case llvm::Triple::EABIHF:
+ case llvm::Triple::GNUEABIHF:
++ case llvm::Triple::MuslEABIHF:
+ return true;
+ default:
+ return false;
+@@ -7548,7 +7551,8 @@ const TargetCodeGenInfo &CodeGenModule::getTargetCodeGenInfo() {
+ Kind = ARMABIInfo::AAPCS16_VFP;
+ else if (CodeGenOpts.FloatABI == "hard" ||
+ (CodeGenOpts.FloatABI != "soft" &&
+- Triple.getEnvironment() == llvm::Triple::GNUEABIHF))
++ (Triple.getEnvironment() == llvm::Triple::GNUEABIHF ||
++ Triple.getEnvironment() == llvm::Triple::MuslEABIHF)))
+ Kind = ARMABIInfo::AAPCS_VFP;
+
+ return *(TheTargetCodeGenInfo = new ARMTargetCodeGenInfo(Types, Kind));
+diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
+index b7ac24f..2a529fb 100644
+--- a/lib/Driver/Tools.cpp
++++ b/lib/Driver/Tools.cpp
+@@ -724,13 +724,19 @@ arm::FloatABI arm::getARMFloatABI(const ToolChain &TC, const ArgList &Args) {
+ default:
+ switch (Triple.getEnvironment()) {
+ case llvm::Triple::GNUEABIHF:
++ case llvm::Triple::MuslEABIHF:
+ case llvm::Triple::EABIHF:
+ ABI = FloatABI::Hard;
+ break;
+ case llvm::Triple::GNUEABI:
++ case llvm::Triple::MuslEABI:
+ case llvm::Triple::EABI:
+ // EABI is always AAPCS, and if it was not marked 'hard', it's softfp
+- ABI = FloatABI::SoftFP;
++ //
++ // Also consider triples like armv7a-hardfloat-linux-eabi, where 'hard'
++ // is marked in the vender field.
++ ABI = (Triple.getVendorName() == "hardfloat") ?
++ FloatABI::Hard : FloatABI::SoftFP;
+ break;
+ case llvm::Triple::Android:
+ ABI = (SubArch == 7) ? FloatABI::SoftFP : FloatABI::Soft;
+@@ -968,6 +974,8 @@ void Clang::AddARMTargetArgs(const llvm::Triple &Triple, const ArgList &Args,
+ case llvm::Triple::Android:
+ case llvm::Triple::GNUEABI:
+ case llvm::Triple::GNUEABIHF:
++ case llvm::Triple::MuslEABI:
++ case llvm::Triple::MuslEABIHF:
+ ABIName = "aapcs-linux";
+ break;
+ case llvm::Triple::EABIHF:
+@@ -8632,6 +8640,29 @@ static std::string getLinuxDynamicLinker(const ArgList &Args,
+ return "/system/bin/linker64";
+ else
+ return "/system/bin/linker";
++ } else if (ToolChain.getTriple().isMusl()) {
++ std::string ArchName;
++ bool IsArm = false;
++ switch (Arch) {
++ case llvm::Triple::arm:
++ case llvm::Triple::thumb:
++ ArchName = "arm";
++ IsArm = true;
++ break;
++ case llvm::Triple::armeb:
++ case llvm::Triple::thumbeb:
++ ArchName = "armeb";
++ IsArm = true;
++ break;
++ default:
++ ArchName = ToolChain.getTriple().getArchName().str();
++ }
++ if (IsArm &&
++ (ToolChain.getTriple().getEnvironment() == llvm::Triple::MuslEABIHF ||
++ arm::getARMFloatABI(ToolChain, Args) == arm::FloatABI::Hard))
++ ArchName += "hf";
++
++ return "/lib/ld-musl-" + ArchName + ".so.1";
+ } else if (Arch == llvm::Triple::x86 || Arch == llvm::Triple::sparc ||
+ Arch == llvm::Triple::sparcel)
+ return "/lib/ld-linux.so.2";
diff --git a/sys-devel/llvm/files/llvm-3.8-musl-fixes.patch b/sys-devel/llvm/files/llvm-3.8-musl-fixes.patch
new file mode 100644
index 000000000000..5c516534abc1
--- /dev/null
+++ b/sys-devel/llvm/files/llvm-3.8-musl-fixes.patch
@@ -0,0 +1,33 @@
+diff --git a/include/llvm/Analysis/TargetLibraryInfo.def b/include/llvm/Analysis/TargetLibraryInfo.def
+index 7798e3c..ade2b96 100644
+--- a/include/llvm/Analysis/TargetLibraryInfo.def
++++ b/include/llvm/Analysis/TargetLibraryInfo.def
+@@ -27,6 +27,15 @@
+ #define TLI_DEFINE_STRING_INTERNAL(string_repr) string_repr,
+ #endif
+
++// avoid name conflicts with musl-libc
++#undef fopen64
++#undef fseeko64
++#undef ftello64
++#undef fstat64
++#undef lstat64
++#undef stat64
++#undef tmpfile64
++
+ /// void *new(unsigned int);
+ TLI_DEFINE_ENUM_INTERNAL(msvc_new_int)
+ TLI_DEFINE_STRING_INTERNAL("??2@YAPAXI@Z")
+diff --git a/lib/Support/DynamicLibrary.cpp b/lib/Support/DynamicLibrary.cpp
+index 9a7aeb5..e98ad80 100644
+--- a/lib/Support/DynamicLibrary.cpp
++++ b/lib/Support/DynamicLibrary.cpp
+@@ -143,7 +143,7 @@ void* DynamicLibrary::SearchForAddressOfSymbol(const char *symbolName) {
+ // On linux we have a weird situation. The stderr/out/in symbols are both
+ // macros and global variables because of standards requirements. So, we
+ // boldly use the EXPLICIT_SYMBOL macro without checking for a #define first.
+-#if defined(__linux__) and !defined(__ANDROID__)
++#if defined(__linux__) && defined(__GLIBC__)
+ {
+ EXPLICIT_SYMBOL(stderr);
+ EXPLICIT_SYMBOL(stdout);
diff --git a/sys-devel/llvm/files/llvm-3.8-musl-support.patch b/sys-devel/llvm/files/llvm-3.8-musl-support.patch
new file mode 100644
index 000000000000..8de660d01cf8
--- /dev/null
+++ b/sys-devel/llvm/files/llvm-3.8-musl-support.patch
@@ -0,0 +1,164 @@
+diff --git a/include/llvm/ADT/Triple.h b/include/llvm/ADT/Triple.h
+index e01db0a..bf9361a 100644
+--- a/include/llvm/ADT/Triple.h
++++ b/include/llvm/ADT/Triple.h
+@@ -173,6 +173,9 @@ public:
+ EABI,
+ EABIHF,
+ Android,
++ Musl,
++ MuslEABI,
++ MuslEABIHF,
+
+ MSVC,
+ Itanium,
+@@ -544,6 +547,13 @@ public:
+ /// Tests whether the target is Android
+ bool isAndroid() const { return getEnvironment() == Triple::Android; }
+
++ /// Tests whether the environment is musl-libc
++ bool isMusl() const {
++ return getEnvironment() == Triple::Musl ||
++ getEnvironment() == Triple::MuslEABI ||
++ getEnvironment() == Triple::MuslEABIHF;
++ }
++
+ /// @}
+ /// @name Mutators
+ /// @{
+diff --git a/lib/Support/Triple.cpp b/lib/Support/Triple.cpp
+index 11afcf7..ad9cffd 100644
+--- a/lib/Support/Triple.cpp
++++ b/lib/Support/Triple.cpp
+@@ -200,6 +200,9 @@ const char *Triple::getEnvironmentTypeName(EnvironmentType Kind) {
+ case EABI: return "eabi";
+ case EABIHF: return "eabihf";
+ case Android: return "android";
++ case Musl: return "musl";
++ case MuslEABI: return "musleabi";
++ case MuslEABIHF: return "musleabihf";
+ case MSVC: return "msvc";
+ case Itanium: return "itanium";
+ case Cygnus: return "cygnus";
+@@ -454,6 +457,9 @@ static Triple::EnvironmentType parseEnvironment(StringRef EnvironmentName) {
+ .StartsWith("code16", Triple::CODE16)
+ .StartsWith("gnu", Triple::GNU)
+ .StartsWith("android", Triple::Android)
++ .StartsWith("musleabihf", Triple::MuslEABIHF)
++ .StartsWith("musleabi", Triple::MuslEABI)
++ .StartsWith("musl", Triple::Musl)
+ .StartsWith("msvc", Triple::MSVC)
+ .StartsWith("itanium", Triple::Itanium)
+ .StartsWith("cygnus", Triple::Cygnus)
+@@ -1431,6 +1437,7 @@ StringRef Triple::getARMCPUForArch(StringRef MArch) const {
+ switch (getEnvironment()) {
+ case llvm::Triple::EABIHF:
+ case llvm::Triple::GNUEABIHF:
++ case llvm::Triple::MuslEABIHF:
+ return "arm1176jzf-s";
+ default:
+ return "arm7tdmi";
+diff --git a/lib/Target/ARM/ARMAsmPrinter.cpp b/lib/Target/ARM/ARMAsmPrinter.cpp
+index f3813c8..45e8c4a 100644
+--- a/lib/Target/ARM/ARMAsmPrinter.cpp
++++ b/lib/Target/ARM/ARMAsmPrinter.cpp
+@@ -541,7 +541,8 @@ void ARMAsmPrinter::EmitEndOfAsmFile(Module &M) {
+ ARMTargetStreamer &ATS = static_cast<ARMTargetStreamer &>(TS);
+
+ if (OptimizationGoals > 0 &&
+- (Subtarget->isTargetAEABI() || Subtarget->isTargetGNUAEABI()))
++ (Subtarget->isTargetAEABI() || Subtarget->isTargetGNUAEABI() ||
++ Subtarget->isTargetMuslAEABI()))
+ ATS.emitAttribute(ARMBuildAttrs::ABI_optimization_goals, OptimizationGoals);
+ OptimizationGoals = -1;
+
+diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp
+index a2daa89..3b2c0bb 100644
+--- a/lib/Target/ARM/ARMISelLowering.cpp
++++ b/lib/Target/ARM/ARMISelLowering.cpp
+@@ -254,7 +254,7 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
+ // RTLIB
+ if (Subtarget->isAAPCS_ABI() &&
+ (Subtarget->isTargetAEABI() || Subtarget->isTargetGNUAEABI() ||
+- Subtarget->isTargetAndroid())) {
++ Subtarget->isTargetMuslAEABI() || Subtarget->isTargetAndroid())) {
+ static const struct {
+ const RTLIB::Libcall Op;
+ const char * const Name;
+@@ -787,7 +787,8 @@ ARMTargetLowering::ARMTargetLowering(const TargetMachine &TM,
+ setOperationAction(ISD::SREM, MVT::i32, Expand);
+ setOperationAction(ISD::UREM, MVT::i32, Expand);
+ // Register based DivRem for AEABI (RTABI 4.2)
+- if (Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid()) {
++ if (Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid() ||
++ Subtarget->isTargetMuslAEABI()) {
+ setOperationAction(ISD::SREM, MVT::i64, Custom);
+ setOperationAction(ISD::UREM, MVT::i64, Custom);
+
+@@ -11651,7 +11652,8 @@ static TargetLowering::ArgListTy getDivRemArgList(
+ }
+
+ SDValue ARMTargetLowering::LowerDivRem(SDValue Op, SelectionDAG &DAG) const {
+- assert((Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid()) &&
++ assert((Subtarget->isTargetAEABI() || Subtarget->isTargetAndroid() ||
++ Subtarget->isTargetMuslAEABI()) &&
+ "Register-based DivRem lowering only");
+ unsigned Opcode = Op->getOpcode();
+ assert((Opcode == ISD::SDIVREM || Opcode == ISD::UDIVREM) &&
+diff --git a/lib/Target/ARM/ARMSubtarget.h b/lib/Target/ARM/ARMSubtarget.h
+index 4d54e57..fa1c516 100644
+--- a/lib/Target/ARM/ARMSubtarget.h
++++ b/lib/Target/ARM/ARMSubtarget.h
+@@ -399,14 +399,21 @@ public:
+ TargetTriple.getEnvironment() == Triple::GNUEABIHF) &&
+ !isTargetDarwin() && !isTargetWindows();
+ }
++ bool isTargetMuslAEABI() const {
++ return (TargetTriple.getEnvironment() == Triple::MuslEABI ||
++ TargetTriple.getEnvironment() == Triple::MuslEABIHF) &&
++ !isTargetDarwin() && !isTargetWindows();
++ }
+
+ // ARM Targets that support EHABI exception handling standard
+ // Darwin uses SjLj. Other targets might need more checks.
+ bool isTargetEHABICompatible() const {
+ return (TargetTriple.getEnvironment() == Triple::EABI ||
+ TargetTriple.getEnvironment() == Triple::GNUEABI ||
++ TargetTriple.getEnvironment() == Triple::MuslEABI ||
+ TargetTriple.getEnvironment() == Triple::EABIHF ||
+ TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
++ TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
+ isTargetAndroid()) &&
+ !isTargetDarwin() && !isTargetWindows();
+ }
+@@ -414,6 +421,7 @@ public:
+ bool isTargetHardFloat() const {
+ // FIXME: this is invalid for WindowsCE
+ return TargetTriple.getEnvironment() == Triple::GNUEABIHF ||
++ TargetTriple.getEnvironment() == Triple::MuslEABIHF ||
+ TargetTriple.getEnvironment() == Triple::EABIHF ||
+ isTargetWindows() || isAAPCS16_ABI();
+ }
+diff --git a/lib/Target/ARM/ARMTargetMachine.cpp b/lib/Target/ARM/ARMTargetMachine.cpp
+index fca1901..a96b1f9 100644
+--- a/lib/Target/ARM/ARMTargetMachine.cpp
++++ b/lib/Target/ARM/ARMTargetMachine.cpp
+@@ -99,6 +99,8 @@ computeTargetABI(const Triple &TT, StringRef CPU,
+ case llvm::Triple::Android:
+ case llvm::Triple::GNUEABI:
+ case llvm::Triple::GNUEABIHF:
++ case llvm::Triple::MuslEABI:
++ case llvm::Triple::MuslEABIHF:
+ case llvm::Triple::EABIHF:
+ case llvm::Triple::EABI:
+ TargetABI = ARMBaseTargetMachine::ARM_ABI_AAPCS;
+@@ -192,7 +194,8 @@ ARMBaseTargetMachine::ARMBaseTargetMachine(const Target &T, const Triple &TT,
+ // Default to triple-appropriate EABI
+ if (Options.EABIVersion == EABI::Default ||
+ Options.EABIVersion == EABI::Unknown) {
+- if (Subtarget.isTargetGNUAEABI())
++ // musl is compatible with glibc with regard to EABI version
++ if (Subtarget.isTargetGNUAEABI() || Subtarget.isTargetMuslAEABI())
+ this->Options.EABIVersion = EABI::GNU;
+ else
+ this->Options.EABIVersion = EABI::EABI5;
diff --git a/sys-devel/llvm/llvm-3.8.1-r1.ebuild b/sys-devel/llvm/llvm-3.8.1-r1.ebuild
new file mode 100644
index 000000000000..60e6d5e4495e
--- /dev/null
+++ b/sys-devel/llvm/llvm-3.8.1-r1.ebuild
@@ -0,0 +1,560 @@
+# Copyright 1999-2016 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=6
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+PYTHON_COMPAT=( python2_7 )
+
+inherit check-reqs cmake-utils eutils flag-o-matic multilib \
+ multilib-minimal python-single-r1 toolchain-funcs pax-utils prefix
+
+DESCRIPTION="Low Level Virtual Machine"
+HOMEPAGE="http://llvm.org/"
+SRC_URI="http://llvm.org/releases/${PV}/${P}.src.tar.xz
+ clang? ( http://llvm.org/releases/${PV}/compiler-rt-${PV}.src.tar.xz
+ http://llvm.org/releases/${PV}/cfe-${PV}.src.tar.xz
+ http://llvm.org/releases/${PV}/clang-tools-extra-${PV}.src.tar.xz )
+ lldb? ( http://llvm.org/releases/${PV}/lldb-${PV}.src.tar.xz )
+ !doc? ( http://dev.gentoo.org/~voyageur/distfiles/${PN}-3.8.0-manpages.tar.bz2 )"
+
+LICENSE="UoI-NCSA"
+SLOT="0/3.8.0"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~x64-freebsd ~amd64-linux ~arm-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos"
+IUSE="clang debug default-compiler-rt default-libcxx doc gold libedit +libffi
+ lldb multitarget ncurses ocaml python +sanitize +static-analyzer test xml
+ video_cards_radeon elibc_musl kernel_Darwin kernel_FreeBSD"
+
+COMMON_DEPEND="
+ sys-libs/zlib:0=
+ clang? (
+ python? ( ${PYTHON_DEPS} )
+ static-analyzer? (
+ dev-lang/perl:*
+ ${PYTHON_DEPS}
+ )
+ xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
+ )
+ gold? ( >=sys-devel/binutils-2.22:*[cxx] )
+ libedit? ( dev-libs/libedit:0=[${MULTILIB_USEDEP}] )
+ libffi? ( >=virtual/libffi-3.0.13-r1:0=[${MULTILIB_USEDEP}] )
+ lldb? ( dev-python/six[${PYTHON_USEDEP}] )
+ ncurses? ( >=sys-libs/ncurses-5.9-r3:0=[${MULTILIB_USEDEP}] )
+ ocaml? (
+ >=dev-lang/ocaml-4.00.0:0=
+ dev-ml/findlib
+ dev-ml/ocaml-ctypes
+ !!<=sys-devel/llvm-3.7.0-r1[ocaml] )"
+# configparser-3.2 breaks the build (3.3 or none at all are fine)
+DEPEND="${COMMON_DEPEND}
+ dev-lang/perl
+ >=sys-devel/make-3.81
+ >=sys-devel/flex-2.5.4
+ >=sys-devel/bison-1.875d
+ || ( >=sys-devel/gcc-3.0 >=sys-devel/llvm-3.5
+ ( >=sys-freebsd/freebsd-lib-9.1-r10 sys-libs/libcxx )
+ )
+ || ( >=sys-devel/binutils-2.18 >=sys-devel/binutils-apple-5.1 )
+ kernel_Darwin? ( <sys-libs/libcxx-${PV%_rc*}.9999 )
+ clang? ( xml? ( virtual/pkgconfig ) )
+ doc? ( dev-python/sphinx )
+ gold? ( sys-libs/binutils-libs )
+ libffi? ( virtual/pkgconfig )
+ lldb? ( dev-lang/swig )
+ !!<dev-python/configparser-3.3.0.2
+ ocaml? ( test? ( dev-ml/ounit ) )
+ ${PYTHON_DEPS}"
+RDEPEND="${COMMON_DEPEND}
+ clang? ( !<=sys-devel/clang-${PV}-r99 )
+ default-libcxx? ( sys-libs/libcxx )
+ abi_x86_32? ( !<=app-emulation/emul-linux-x86-baselibs-20130224-r2
+ !app-emulation/emul-linux-x86-baselibs[-abi_x86_32(-)] )"
+PDEPEND="clang? ( =sys-devel/clang-${PV}-r100 )"
+
+# pypy gives me around 1700 unresolved tests due to open file limit
+# being exceeded. probably GC does not close them fast enough.
+REQUIRED_USE="${PYTHON_REQUIRED_USE}
+ lldb? ( clang xml )"
+
+S=${WORKDIR}/${P/_}.src
+
+pkg_pretend() {
+ # in megs
+ # !clang !debug !multitarget -O2 400
+ # !clang !debug multitarget -O2 550
+ # clang !debug !multitarget -O2 950
+ # clang !debug multitarget -O2 1200
+ # !clang debug multitarget -O2 5G
+ # clang !debug multitarget -O0 -g 12G
+ # clang debug multitarget -O2 16G
+ # clang debug multitarget -O0 -g 14G
+
+ local build_size=550
+ use clang && build_size=1200
+
+ if use debug; then
+ ewarn "USE=debug is known to increase the size of package considerably"
+ ewarn "and cause the tests to fail."
+ ewarn
+
+ (( build_size *= 14 ))
+ elif is-flagq '-g?(gdb)?([1-9])'; then
+ ewarn "The C++ compiler -g option is known to increase the size of the package"
+ ewarn "considerably. If you run out of space, please consider removing it."
+ ewarn
+
+ (( build_size *= 10 ))
+ fi
+
+ # Multiply by number of ABIs :).
+ local abis=( $(multilib_get_enabled_abis) )
+ (( build_size *= ${#abis[@]} ))
+
+ local CHECKREQS_DISK_BUILD=${build_size}M
+ check-reqs_pkg_pretend
+}
+
+pkg_setup() {
+ pkg_pretend
+}
+
+src_unpack() {
+ default
+
+ if use clang; then
+ mv "${WORKDIR}"/cfe-${PV/_}.src "${S}"/tools/clang \
+ || die "clang source directory move failed"
+ mv "${WORKDIR}"/compiler-rt-${PV/_}.src "${S}"/projects/compiler-rt \
+ || die "compiler-rt source directory move failed"
+ mv "${WORKDIR}"/clang-tools-extra-${PV/_}.src "${S}"/tools/clang/tools/extra \
+ || die "clang-tools-extra source directory move failed"
+ fi
+
+ if use lldb; then
+ mv "${WORKDIR}"/lldb-${PV/_}.src "${S}"/tools/lldb \
+ || die "lldb source directory move failed"
+ fi
+}
+
+src_prepare() {
+ python_setup
+
+ # Make ocaml warnings non-fatal, bug #537308
+ sed -e "/RUN/s/-warn-error A//" -i test/Bindings/OCaml/*ml || die
+ # Fix libdir for ocaml bindings install, bug #559134
+ eapply "${FILESDIR}"/cmake/${PN}-3.7.0-ocaml-multilib.patch
+ # Do not build/install ocaml docs with USE=-doc, bug #562008
+ eapply "${FILESDIR}"/cmake/${PN}-3.7.0-ocaml-build_doc.patch
+
+ # Make it possible to override Sphinx HTML install dirs
+ # https://llvm.org/bugs/show_bug.cgi?id=23780
+ eapply "${FILESDIR}"/cmake/0002-cmake-Support-overriding-Sphinx-HTML-doc-install-dir.patch
+
+ # Prevent race conditions with parallel Sphinx runs
+ # https://llvm.org/bugs/show_bug.cgi?id=23781
+ eapply "${FILESDIR}"/cmake/0003-cmake-Add-an-ordering-dep-between-HTML-man-Sphinx-ta.patch
+
+ # Prevent installing libgtest
+ # https://llvm.org/bugs/show_bug.cgi?id=18341
+ eapply "${FILESDIR}"/cmake/0004-cmake-Do-not-install-libgtest.patch
+
+ # Allow custom cmake build types (like 'Gentoo')
+ eapply "${FILESDIR}"/cmake/${PN}-3.8-allow_custom_cmake_build_types.patch
+
+ # Fix llvm-config for shared linking and sane flags
+ # https://bugs.gentoo.org/show_bug.cgi?id=565358
+ eapply "${FILESDIR}"/llvm-3.8-llvm-config.patch
+
+ # Restore SOVERSIONs for shared libraries
+ # https://bugs.gentoo.org/show_bug.cgi?id=578392
+ eapply "${FILESDIR}"/llvm-3.8-soversion.patch
+
+ # support building llvm against musl-libc
+ use elibc_musl && eapply "${FILESDIR}"/llvm-3.8-musl-fixes.patch
+
+ # support "musl" as a valid environment type in llvm
+ eapply "${FILESDIR}"/llvm-3.8-musl-support.patch
+
+ # disable use of SDK on OSX, bug #568758
+ sed -i -e 's/xcrun/false/' utils/lit/lit/util.py || die
+
+ # Workaround, can be compiled with gcc on Gentoo/FreeBSD, bug #578064
+ use kernel_FreeBSD && tc-is-gcc && append-cppflags "-D_GLIBCXX_USE_C99"
+
+ if use clang; then
+ # Automatically select active system GCC's libraries, bugs #406163 and #417913
+ eapply "${FILESDIR}"/clang-3.5-gentoo-runtime-gcc-detection-v3.patch
+
+ # Support gcc4.9 search paths
+ # https://github.com/llvm-mirror/clang/commit/af4db76e059c1a3
+ eapply "${FILESDIR}"/clang-3.8-gcc4.9-search-path.patch
+
+ eapply "${FILESDIR}"/clang-3.4-darwin_prefix-include-paths.patch
+ eprefixify tools/clang/lib/Frontend/InitHeaderSearch.cpp
+
+ pushd "${S}"/tools/clang >/dev/null || die
+ # be able to specify default values for -stdlib and -rtlib at build time
+ eapply "${FILESDIR}"/clang-3.8-default-libs.patch
+
+ # enable clang to recognize musl-libc
+ eapply "${FILESDIR}"/clang-3.8-musl-support.patch
+ popd >/dev/null || die
+
+ sed -i -e "s^@EPREFIX@^${EPREFIX}^" \
+ tools/clang/tools/scan-build/bin/scan-build || die
+
+ # Install clang runtime into /usr/lib/clang
+ # https://llvm.org/bugs/show_bug.cgi?id=23792
+ eapply "${FILESDIR}"/cmake/clang-0001-Install-clang-runtime-into-usr-lib-without-suffix-3.8.patch
+ eapply "${FILESDIR}"/cmake/compiler-rt-0001-cmake-Install-compiler-rt-into-usr-lib-without-suffi.patch
+
+ # Do not force -march flags on arm platforms
+ # https://bugs.gentoo.org/show_bug.cgi?id=562706
+ eapply "${FILESDIR}"/cmake/${PN}-3.8.0-compiler_rt_arm_march_flags.patch
+
+ # Make it possible to override CLANG_LIBDIR_SUFFIX
+ # (that is used only to find LLVMgold.so)
+ # https://llvm.org/bugs/show_bug.cgi?id=23793
+ eapply "${FILESDIR}"/cmake/clang-0002-cmake-Make-CLANG_LIBDIR_SUFFIX-overridable.patch
+
+ # Fix git-clang-format shebang, bug #562688
+ python_fix_shebang tools/clang/tools/clang-format/git-clang-format
+
+ # Fix 'stdarg.h' file not found on Gentoo/FreeBSD, bug #578064
+ # https://llvm.org/bugs/show_bug.cgi?id=26651
+ eapply "${FILESDIR}"/clang-3.8-compiler-rt-fbsd.patch
+
+ pushd projects/compiler-rt >/dev/null || die
+
+ # Fix WX sections, bug #421527
+ find lib/builtins -type f -name '*.S' -exec sed \
+ -e '$a\\n#if defined(__linux__) && defined(__ELF__)\n.section .note.GNU-stack,"",%progbits\n#endif' \
+ -i {} + || die
+
+ popd >/dev/null || die
+ fi
+
+ if use lldb; then
+ # Do not install dummy readline.so module from
+ # https://llvm.org/bugs/show_bug.cgi?id=18841
+ sed -e 's/add_subdirectory(readline)/#&/' \
+ -i tools/lldb/scripts/Python/modules/CMakeLists.txt || die
+ # Do not install bundled six module
+ eapply "${FILESDIR}"/${PN}-3.8-lldb_six.patch
+ fi
+
+ # User patches
+ eapply_user
+
+ # Native libdir is used to hold LLVMgold.so
+ NATIVE_LIBDIR=$(get_libdir)
+}
+
+multilib_src_configure() {
+ local targets
+ if use multitarget; then
+ targets=all
+ else
+ targets='host;BPF;CppBackend'
+ use video_cards_radeon && targets+=';AMDGPU'
+ fi
+
+ local ffi_cflags ffi_ldflags
+ if use libffi; then
+ ffi_cflags=$(pkg-config --cflags-only-I libffi)
+ ffi_ldflags=$(pkg-config --libs-only-L libffi)
+ fi
+
+ local libdir=$(get_libdir)
+ local mycmakeargs=(
+ -DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+
+ -DBUILD_SHARED_LIBS=ON
+ -DLLVM_ENABLE_TIMESTAMPS=OFF
+ -DLLVM_TARGETS_TO_BUILD="${targets}"
+ -DLLVM_BUILD_TESTS=$(usex test)
+
+ -DLLVM_ENABLE_FFI=$(usex libffi)
+ -DLLVM_ENABLE_TERMINFO=$(usex ncurses)
+ -DLLVM_ENABLE_ASSERTIONS=$(usex debug)
+ -DLLVM_ENABLE_EH=ON
+ -DLLVM_ENABLE_RTTI=ON
+
+ -DWITH_POLLY=OFF # TODO
+
+ -DLLVM_HOST_TRIPLE="${CHOST}"
+
+ -DFFI_INCLUDE_DIR="${ffi_cflags#-I}"
+ -DFFI_LIBRARY_DIR="${ffi_ldflags#-L}"
+
+ -DHAVE_HISTEDIT_H=$(usex libedit)
+ )
+
+ if use clang; then
+ mycmakeargs+=(
+ -DCMAKE_DISABLE_FIND_PACKAGE_LibXml2=$(usex !xml)
+ # libgomp support fails to find headers without explicit -I
+ # furthermore, it provides only syntax checking
+ -DCLANG_DEFAULT_OPENMP_RUNTIME=libomp
+
+ # override default stdlib and rtlib
+ -DCLANG_DEFAULT_CXX_STDLIB=$(usex default-libcxx libc++ "")
+ -DCLANG_DEFAULT_RTLIB=$(usex default-compiler-rt compiler-rt "")
+
+ # compiler-rt's test cases depend on sanitizer
+ -DCOMPILER_RT_BUILD_SANITIZERS=$(usex sanitize)
+ -DCOMPILER_RT_INCLUDE_TESTS=$(usex sanitize)
+ )
+ fi
+
+ if use lldb; then
+ mycmakeargs+=(
+ -DLLDB_DISABLE_LIBEDIT=$(usex !libedit)
+ -DLLDB_DISABLE_CURSES=$(usex !ncurses)
+ -DLLDB_ENABLE_TERMINFO=$(usex ncurses)
+ )
+ fi
+
+ if ! multilib_is_native_abi || ! use ocaml; then
+ mycmakeargs+=(
+ -DOCAMLFIND=NO
+ )
+ fi
+# Note: go bindings have no CMake rules at the moment
+# but let's kill the check in case they are introduced
+# if ! multilib_is_native_abi || ! use go; then
+ mycmakeargs+=(
+ -DGO_EXECUTABLE=GO_EXECUTABLE-NOTFOUND
+ )
+# fi
+
+ if multilib_is_native_abi; then
+ mycmakeargs+=(
+ -DLLVM_BUILD_DOCS=$(usex doc)
+ -DLLVM_ENABLE_SPHINX=$(usex doc)
+ -DLLVM_ENABLE_DOXYGEN=OFF
+ -DLLVM_INSTALL_HTML="${EPREFIX}/usr/share/doc/${PF}/html"
+ -DSPHINX_WARNINGS_AS_ERRORS=OFF
+ -DLLVM_INSTALL_UTILS=ON
+ )
+
+ if use clang; then
+ mycmakeargs+=(
+ -DCLANG_INSTALL_HTML="${EPREFIX}/usr/share/doc/${PF}/clang"
+ )
+ fi
+
+ if use gold; then
+ mycmakeargs+=(
+ -DLLVM_BINUTILS_INCDIR="${EPREFIX}"/usr/include
+ )
+ fi
+
+ if use lldb; then
+ mycmakeargs+=(
+ -DLLDB_DISABLE_PYTHON=$(usex !python)
+ )
+ fi
+
+ else
+ if use clang; then
+ mycmakeargs+=(
+ # disable compiler-rt on non-native ABI because:
+ # 1. it fails to configure because of -m32
+ # 2. it is shared between ABIs so no point building
+ # it multiple times
+ -DLLVM_EXTERNAL_COMPILER_RT_BUILD=OFF
+ -DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_BUILD=OFF
+ )
+ fi
+ if use lldb; then
+ mycmakeargs+=(
+ # only run swig on native abi
+ -DLLDB_DISABLE_PYTHON=ON
+ )
+ fi
+ fi
+
+ if use clang; then
+ mycmakeargs+=(
+ -DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
+ -DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
+ -DCLANG_LIBDIR_SUFFIX="${NATIVE_LIBDIR#lib}"
+ )
+
+ # -- not needed when compiler-rt is built with host compiler --
+ # cmake passes host C*FLAGS to compiler-rt build
+ # which is performed using clang, so we need to filter out
+ # some flags clang does not support
+ # (if you know some more flags that don't work, let us know)
+ #filter-flags -msahf -frecord-gcc-switches
+ fi
+
+ if tc-is-cross-compiler; then
+ [[ -x "/usr/bin/llvm-tblgen" ]] \
+ || die "/usr/bin/llvm-tblgen not found or usable"
+ mycmakeargs+=(
+ -DCMAKE_CROSSCOMPILING=ON
+ -DLLVM_TABLEGEN=/usr/bin/llvm-tblgen
+ )
+
+ if use clang; then
+ [[ -x "/usr/bin/clang-tblgen" ]] \
+ || die "/usr/bin/clang-tblgen not found or usable"
+ mycmakeargs+=(
+ -DCLANG_TABLEGEN=/usr/bin/clang-tblgen
+ )
+ fi
+ fi
+
+ cmake-utils_src_configure
+}
+
+multilib_src_compile() {
+ cmake-utils_src_compile
+ # TODO: not sure why this target is not correctly called
+ multilib_is_native_abi && use doc && use ocaml && cmake-utils_src_make docs/ocaml_doc
+
+ pax-mark m "${BUILD_DIR}"/bin/llvm-rtdyld
+ pax-mark m "${BUILD_DIR}"/bin/lli
+ pax-mark m "${BUILD_DIR}"/bin/lli-child-target
+
+ if use test; then
+ pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/Orc/OrcJITTests
+ pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/MCJIT/MCJITTests
+ pax-mark m "${BUILD_DIR}"/unittests/Support/SupportTests
+ fi
+}
+
+multilib_src_test() {
+ # respect TMPDIR!
+ local -x LIT_PRESERVES_TMP=1
+ local test_targets=( check )
+ # clang tests won't work on non-native ABI because we skip compiler-rt
+ multilib_is_native_abi && use clang && test_targets+=( check-clang )
+ cmake-utils_src_make "${test_targets[@]}"
+}
+
+src_install() {
+ local MULTILIB_CHOST_TOOLS=(
+ /usr/bin/llvm-config
+ )
+
+ local MULTILIB_WRAPPED_HEADERS=(
+ /usr/include/llvm/Config/config.h
+ /usr/include/llvm/Config/llvm-config.h
+ )
+
+ if use clang; then
+ # note: magic applied in multilib_src_install()!
+ CLANG_VERSION=${PV%.*}
+
+ MULTILIB_CHOST_TOOLS+=(
+ /usr/bin/clang
+ /usr/bin/clang++
+ /usr/bin/clang-cl
+ /usr/bin/clang-${CLANG_VERSION}
+ /usr/bin/clang++-${CLANG_VERSION}
+ /usr/bin/clang-cl-${CLANG_VERSION}
+ )
+
+ MULTILIB_WRAPPED_HEADERS+=(
+ /usr/include/clang/Config/config.h
+ )
+ fi
+
+ multilib-minimal_src_install
+
+ # Remove unnecessary headers on FreeBSD, bug #417171
+ if use kernel_FreeBSD && use clang; then
+ rm "${ED}"usr/lib/clang/${PV}/include/{std,float,iso,limits,tgmath,varargs}*.h || die
+ fi
+}
+
+multilib_src_install() {
+ cmake-utils_src_install
+
+ if multilib_is_native_abi; then
+ # Install man pages.
+ use doc || doman "${WORKDIR}"/${PN}-3.8.0-manpages/*.1
+
+ # Symlink the gold plugin.
+ if use gold; then
+ dodir "/usr/${CHOST}/binutils-bin/lib/bfd-plugins"
+ dosym "../../../../$(get_libdir)/LLVMgold.so" \
+ "/usr/${CHOST}/binutils-bin/lib/bfd-plugins/LLVMgold.so"
+ fi
+ fi
+
+ # apply CHOST and CLANG_VERSION to clang executables
+ # they're statically linked so we don't have to worry about the lib
+ if use clang; then
+ local clang_tools=( clang clang++ clang-cl )
+ local i
+
+ # cmake gives us:
+ # - clang-X.Y
+ # - clang -> clang-X.Y
+ # - clang++, clang-cl -> clang
+ # we want to have:
+ # - clang-X.Y
+ # - clang++-X.Y, clang-cl-X.Y -> clang-X.Y
+ # - clang, clang++, clang-cl -> clang*-X.Y
+ # so we need to fix the two tools
+ for i in "${clang_tools[@]:1}"; do
+ rm "${ED%/}/usr/bin/${i}" || die
+ dosym "clang-${CLANG_VERSION}" "/usr/bin/${i}-${CLANG_VERSION}"
+ dosym "${i}-${CLANG_VERSION}" "/usr/bin/${i}"
+ done
+
+ # now prepend ${CHOST} and let the multilib-build.eclass symlink it
+ if ! multilib_is_native_abi; then
+ # non-native? let's replace it with a simple wrapper
+ for i in "${clang_tools[@]}"; do
+ rm "${ED%/}/usr/bin/${i}-${CLANG_VERSION}" || die
+ cat > "${T}"/wrapper.tmp <<-_EOF_
+ #!${EPREFIX}/bin/sh
+ exec "${i}-${CLANG_VERSION}" $(get_abi_CFLAGS) "\${@}"
+ _EOF_
+ newbin "${T}"/wrapper.tmp "${i}-${CLANG_VERSION}"
+ done
+ fi
+ fi
+}
+
+multilib_src_install_all() {
+ insinto /usr/share/vim/vimfiles
+ doins -r utils/vim/*/.
+ # some users may find it useful
+ dodoc utils/vim/vimrc
+
+ if use clang; then
+ pushd tools/clang >/dev/null || die
+
+ if use python ; then
+ pushd bindings/python/clang >/dev/null || die
+
+ python_moduleinto clang
+ python_domodule *.py
+
+ popd >/dev/null || die
+ fi
+
+ # AddressSanitizer symbolizer (currently separate)
+ dobin "${S}"/projects/compiler-rt/lib/asan/scripts/asan_symbolize.py
+
+ popd >/dev/null || die
+
+ python_fix_shebang "${ED}"
+ if use static-analyzer; then
+ python_optimize "${ED}"usr/share/scan-view
+ fi
+ fi
+}
+
+pkg_postinst() {
+ if use clang && ! has_version 'sys-libs/libomp'; then
+ elog "To enable OpenMP support in clang, install sys-libs/libomp."
+ fi
+}
diff --git a/sys-devel/llvm/metadata.xml b/sys-devel/llvm/metadata.xml
index 7371a1fe6d06..09156e246672 100644
--- a/sys-devel/llvm/metadata.xml
+++ b/sys-devel/llvm/metadata.xml
@@ -20,11 +20,14 @@
4. LLVM does not imply things that you would expect from a high-level virtual machine. It does not require garbage collection or run-time code generation (In fact, LLVM makes a great static compiler!). Note that optional LLVM components can be used to build high-level virtual machines and other systems that need these services.</longdescription>
<use>
<flag name="clang">Build the clang C/C++ compiler</flag>
+ <flag name="default-compiler-rt">Use compiler-rt instead of libgcc as the default rtlib for clang</flag>
+ <flag name="default-libcxx">Use libc++ instead of libstdc++ as the default stdlib for clang</flag>
<flag name="doc">Build and install the HTML documentation and regenerate the man pages</flag>
<flag name="gold">Build the gold linker plugin</flag>
<flag name="lldb">Build the lldb debugger</flag>
<flag name="multitarget">Build all host targets (default: host only)</flag>
<flag name="ncurses">Support querying terminal properties using ncurses' terminfo</flag>
+ <flag name="sanitize">Build compiler-rt's sanitizers</flag>
<flag name="static-analyzer">Install the Clang static analyzer (requires USE=clang)</flag>
</use>
</pkgmetadata>