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# Copyright 1999-2016 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
EAPI=6
: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
CMAKE_MIN_VERSION=3.4.3
PYTHON_COMPAT=( python2_7 )
inherit check-reqs cmake-utils flag-o-matic git-r3 multilib-minimal \
python-single-r1 toolchain-funcs pax-utils
DESCRIPTION="C language family frontend for LLVM"
HOMEPAGE="http://llvm.org/"
SRC_URI=""
EGIT_REPO_URI="http://llvm.org/git/clang.git
https://github.com/llvm-mirror/clang.git"
# Keep in sync with sys-devel/llvm
ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
NVPTX PowerPC Sparc SystemZ X86 XCore )
ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
LICENSE="UoI-NCSA"
SLOT="0/${PV%.*}"
KEYWORDS=""
IUSE="debug default-compiler-rt default-libcxx +doc multitarget python
+static-analyzer test xml elibc_musl kernel_FreeBSD ${ALL_LLVM_TARGETS[*]}"
RDEPEND="
~sys-devel/llvm-${PV}:=[debug=,${LLVM_TARGET_USEDEPS// /,},${MULTILIB_USEDEP}]
static-analyzer? ( dev-lang/perl:* )
xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
!<sys-devel/llvm-${PV}
${PYTHON_DEPS}"
# configparser-3.2 breaks the build (3.3 or none at all are fine)
DEPEND="${RDEPEND}
doc? ( dev-python/sphinx )
test? ( dev-python/lit[${PYTHON_USEDEP}] )
xml? ( virtual/pkgconfig )
!!<dev-python/configparser-3.3.0.2
${PYTHON_DEPS}"
PDEPEND="
~sys-devel/clang-runtime-${PV}
default-compiler-rt? ( sys-libs/compiler-rt )
default-libcxx? ( sys-libs/libcxx )"
REQUIRED_USE="${PYTHON_REQUIRED_USE}
|| ( ${ALL_LLVM_TARGETS[*]} )
multitarget? ( ${ALL_LLVM_TARGETS[*]} )"
# Multilib notes:
# 1. ABI_* flags control ABIs libclang* is built for only.
# 2. clang is always capable of compiling code for all ABIs for enabled
# target. However, you will need appropriate crt* files (installed
# e.g. by sys-devel/gcc and sys-libs/glibc).
# 3. ${CHOST}-clang wrappers are always installed for all ABIs included
# in the current profile (i.e. alike supported by sys-devel/gcc).
#
# Therefore: use sys-devel/clang[${MULTILIB_USEDEP}] only if you need
# multilib clang* libraries (not runtime, not wrappers).
pkg_pretend() {
local build_size=650
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
python-single-r1_pkg_setup
}
src_unpack() {
git-r3_fetch "http://llvm.org/git/clang-tools-extra.git
https://github.com/llvm-mirror/clang-tools-extra.git"
if use test; then
# needed for patched gtest
git-r3_fetch "http://llvm.org/git/llvm.git
https://github.com/llvm-mirror/llvm.git"
fi
git-r3_fetch
git-r3_checkout http://llvm.org/git/clang-tools-extra.git \
"${S}"/tools/clang/tools/extra
if use test; then
git-r3_checkout http://llvm.org/git/llvm.git \
"${WORKDIR}"/llvm
fi
git-r3_checkout
}
src_prepare() {
python_setup
# fix stand-alone doc build
eapply "${FILESDIR}"/9999/0007-cmake-Support-stand-alone-Sphinx-doxygen-doc-build.patch
# User patches
eapply_user
}
multilib_src_configure() {
# TODO: read it?
local clang_version=4.0.0
local libdir=$(get_libdir)
local mycmakeargs=(
-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
# relative to bindir
-DCLANG_RESOURCE_DIR="../lib/clang/${clang_version}"
-DBUILD_SHARED_LIBS=ON
-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
# TODO: get them properly conditional
#-DLLVM_BUILD_TESTS=$(usex test)
# these are not propagated reliably, so redefine them
-DLLVM_ENABLE_EH=ON
-DLLVM_ENABLE_RTTI=ON
-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=$(usex default-compiler-rt compiler-rt "")
-DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
-DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
)
use test && mycmakeargs+=(
-DLLVM_MAIN_SRC_DIR="${WORKDIR}/llvm"
-DLIT_COMMAND="${EPREFIX}/usr/bin/lit"
)
if multilib_is_native_abi; then
mycmakeargs+=(
-DLLVM_BUILD_DOCS=$(usex doc)
-DLLVM_ENABLE_SPHINX=$(usex doc)
-DLLVM_ENABLE_DOXYGEN=OFF
)
use doc && mycmakeargs+=(
-DCLANG_INSTALL_SPHINX_HTML_DIR="${EPREFIX}/usr/share/doc/${PF}/html"
-DSPHINX_WARNINGS_AS_ERRORS=OFF
)
else
mycmakeargs+=(
-DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_BUILD=OFF
)
fi
if tc-is-cross-compiler; then
[[ -x "/usr/bin/clang-tblgen" ]] \
|| die "/usr/bin/clang-tblgen not found or usable"
mycmakeargs+=(
-DCMAKE_CROSSCOMPILING=ON
-DCLANG_TABLEGEN=/usr/bin/clang-tblgen
)
fi
cmake-utils_src_configure
}
multilib_src_compile() {
cmake-utils_src_compile
# provide a symlink for tests
ln -s "../$(get_libdir)/clang" lib/clang || die
}
multilib_src_test() {
# respect TMPDIR!
local -x LIT_PRESERVES_TMP=1
cmake-utils_src_make check-clang
}
src_install() {
MULTILIB_WRAPPED_HEADERS=(
/usr/include/clang/Config/config.h
)
multilib-minimal_src_install
# Move runtime headers to /usr/lib/clang, where they belong
dodir /usr/lib
mv "${ED}usr/include/clangrt" "${ED}usr/lib/clang" || die
# Apply CHOST and version suffix to clang tools
local clang_version=4.0
local clang_tools=( clang clang++ clang-cl clang-cpp )
local abi i
# cmake gives us:
# - clang-X.Y
# - clang -> clang-X.Y
# - clang++, clang-cl, clang-cpp -> clang
# we want to have:
# - clang-X.Y
# - clang++-X.Y, clang-cl-X.Y, clang-cpp-X.Y -> clang-X.Y
# - clang, clang++, clang-cl, clang-cpp -> clang*-X.Y
# also in CHOST variant
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 create target symlinks for all supported ABIs
for abi in $(get_all_abis); do
local abi_chost=$(get_abi_CHOST "${abi}")
for i in "${clang_tools[@]}"; do
dosym "${i}-${clang_version}" \
"/usr/bin/${abi_chost}-${i}-${clang_version}"
dosym "${abi_chost}-${i}-${clang_version}" \
"/usr/bin/${abi_chost}-${i}"
done
done
# Remove unnecessary headers on FreeBSD, bug #417171
if use kernel_FreeBSD; then
rm "${ED}"usr/lib/clang/${PV}/include/{std,float,iso,limits,tgmath,varargs}*.h || die
fi
}
multilib_src_install() {
cmake-utils_src_install
# move headers to include/ to get them checked for ABI mismatch
# (then to the correct directory in src_install())
insinto /usr/include/clangrt
doins -r "${ED}usr/$(get_libdir)/clang"/.
rm -r "${ED}usr/$(get_libdir)/clang" || die
}
multilib_src_install_all() {
if use python ; then
pushd bindings/python/clang >/dev/null || die
python_moduleinto clang
python_domodule *.py
popd >/dev/null || die
fi
python_fix_shebang "${ED}"
if use static-analyzer; then
python_optimize "${ED}"usr/share/scan-view
fi
}
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