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# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=6
: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
# (needed due to CMAKE_BUILD_TYPE != Gentoo)
CMAKE_MIN_VERSION=3.7.0-r1
PYTHON_COMPAT=( python2_7 )
inherit cmake-utils flag-o-matic llvm multiprocessing \
python-any-r1 toolchain-funcs
DESCRIPTION="Compiler runtime library for clang (built-in part)"
HOMEPAGE="https://llvm.org/"
SRC_URI="https://releases.llvm.org/${PV/_//}/${P/_/}.src.tar.xz"
LICENSE="|| ( UoI-NCSA MIT )"
SLOT="${PV%_*}"
KEYWORDS="amd64 arm64 ~ppc64 x86 ~amd64-fbsd ~amd64-linux ~ppc-macos ~x64-macos ~x86-macos"
IUSE="+clang test"
RESTRICT="!test? ( test ) !clang? ( test )"
CLANG_SLOT=${SLOT%%.*}
# llvm-6 for new lit options
DEPEND="
>=sys-devel/llvm-6
clang? ( sys-devel/clang )
test? (
$(python_gen_any_dep "dev-python/lit[\${PYTHON_USEDEP}]")
=sys-devel/clang-${PV%_*}*:${CLANG_SLOT} )
${PYTHON_DEPS}"
S=${WORKDIR}/${P/_/}.src
# least intrusive of all
CMAKE_BUILD_TYPE=RelWithDebInfo
pkg_pretend() {
if ! use clang && ! tc-is-clang; then
ewarn "Building using a compiler other than clang may result in broken atomics"
ewarn "library. Enable USE=clang unless you have a very good reason not to."
fi
}
pkg_setup() {
llvm_pkg_setup
python-any-r1_pkg_setup
}
test_compiler() {
$(tc-getCC) ${CFLAGS} ${LDFLAGS} "${@}" -o /dev/null -x c - \
<<<'int main() { return 0; }' &>/dev/null
}
src_configure() {
# pre-set since we need to pass it to cmake
BUILD_DIR=${WORKDIR}/${P}_build
local nolib_flags=( -nodefaultlibs -lc )
if use clang; then
local -x CC=${CHOST}-clang
local -x CXX=${CHOST}-clang++
# ensure we can use clang before installing compiler-rt
local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
strip-unsupported-flags
elif ! test_compiler; then
if test_compiler "${nolib_flags[@]}"; then
local -x LDFLAGS="${LDFLAGS} ${nolib_flags[*]}"
ewarn "${CC} seems to lack runtime, trying with ${nolib_flags[*]}"
fi
fi
local mycmakeargs=(
-DCOMPILER_RT_INSTALL_PATH="${EPREFIX}/usr/lib/clang/${SLOT}"
-DCOMPILER_RT_INCLUDE_TESTS=$(usex test)
-DCOMPILER_RT_BUILD_LIBFUZZER=OFF
-DCOMPILER_RT_BUILD_PROFILE=OFF
-DCOMPILER_RT_BUILD_SANITIZERS=OFF
-DCOMPILER_RT_BUILD_XRAY=OFF
)
if use prefix && [[ "${CHOST}" == *-darwin* ]] ; then
mycmakeargs+=(
# disable use of SDK for the system itself
-DDARWIN_macosx_CACHED_SYSROOT=/
)
fi
if use test; then
mycmakeargs+=(
-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
-DLLVM_LIT_ARGS="-vv;-j;${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}"
-DCOMPILER_RT_TEST_COMPILER="${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/bin/clang"
-DCOMPILER_RT_TEST_CXX_COMPILER="${EPREFIX}/usr/lib/llvm/${CLANG_SLOT}/bin/clang++"
)
fi
cmake-utils_src_configure
}
src_test() {
# respect TMPDIR!
local -x LIT_PRESERVES_TMP=1
cmake-utils_src_make check-builtins
}
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