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# Copyright 1999-2024 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=8
PYTHON_COMPAT=( python3_{10..12} )
inherit flag-o-matic cmake-multilib linux-info llvm.org python-single-r1
DESCRIPTION="OpenMP runtime library for LLVM/clang compiler"
HOMEPAGE="https://openmp.llvm.org"
LICENSE="Apache-2.0-with-LLVM-exceptions || ( UoI-NCSA MIT )"
SLOT="0/${LLVM_SOABI}"
IUSE="+debug gdb-plugin hwloc ompt test"
REQUIRED_USE="
gdb-plugin? ( ${PYTHON_REQUIRED_USE} )
"
RESTRICT="!test? ( test )"
RDEPEND="
gdb-plugin? ( ${PYTHON_DEPS} )
hwloc? ( >=sys-apps/hwloc-2.5:0=[${MULTILIB_USEDEP}] )
"
# tests:
# - dev-python/lit provides the test runner
# - sys-devel/llvm provide test utils (e.g. FileCheck)
# - sys-devel/clang provides the compiler to run tests
DEPEND="
${RDEPEND}
"
BDEPEND="
dev-lang/perl
test? (
${PYTHON_DEPS}
$(python_gen_cond_dep '
dev-python/lit[${PYTHON_USEDEP}]
')
sys-devel/clang
)
"
LLVM_COMPONENTS=( openmp cmake llvm/include )
llvm.org_set_globals
pkg_setup() {
if use gdb-plugin || use test; then
python-single-r1_pkg_setup
fi
}
multilib_src_configure() {
# LTO causes issues in other packages building, #870127
filter-lto
# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
local libdir="$(get_libdir)"
local mycmakeargs=(
-DOPENMP_LIBDIR_SUFFIX="${libdir#lib}"
-DLIBOMP_USE_HWLOC=$(usex hwloc)
-DLIBOMP_OMPD_GDB_SUPPORT=$(multilib_native_usex gdb-plugin)
-DLIBOMP_OMPT_SUPPORT=$(usex ompt)
# do not install libgomp.so & libiomp5.so aliases
-DLIBOMP_INSTALL_ALIASES=OFF
# disable unnecessary hack copying stuff back to srcdir
-DLIBOMP_COPY_EXPORTS=OFF
)
use test && mycmakeargs+=(
# this project does not use standard LLVM cmake macros
-DOPENMP_LLVM_LIT_EXECUTABLE="${EPREFIX}/usr/bin/lit"
-DOPENMP_LIT_ARGS="$(get_lit_flags)"
-DOPENMP_TEST_C_COMPILER="$(type -P "${CHOST}-clang")"
-DOPENMP_TEST_CXX_COMPILER="$(type -P "${CHOST}-clang++")"
)
cmake_src_configure
}
multilib_src_test() {
# respect TMPDIR!
local -x LIT_PRESERVES_TMP=1
cmake_build check-libomp
}
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