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# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=6
: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
# (needed due to CMAKE_BUILD_TYPE != Gentoo)
CMAKE_MIN_VERSION=3.7.0-r1
PYTHON_COMPAT=( python2_7 )
inherit cmake-multilib llvm multiprocessing python-any-r1
MY_P=${P/_/}.src
LIBCXX_P=libcxx-${PV/_/}.src
DESCRIPTION="Low level support for a standard C++ library"
HOMEPAGE="https://libcxxabi.llvm.org/"
SRC_URI="https://releases.llvm.org/${PV/_//}/${MY_P}.tar.xz
https://releases.llvm.org/${PV/_//}/${LIBCXX_P}.tar.xz"
LICENSE="|| ( UoI-NCSA MIT )"
SLOT="0"
KEYWORDS="~amd64 ~arm64 ~x86 ~amd64-fbsd"
IUSE="+libunwind +static-libs test elibc_musl"
RESTRICT="!test? ( test )"
RDEPEND="
libunwind? (
|| (
>=sys-libs/libunwind-1.0.1-r1[static-libs?,${MULTILIB_USEDEP}]
>=sys-libs/llvm-libunwind-3.9.0-r1[static-libs?,${MULTILIB_USEDEP}]
)
)"
# llvm-6 for new lit options
DEPEND="${RDEPEND}
>=sys-devel/llvm-6
test? ( >=sys-devel/clang-3.9.0
$(python_gen_any_dep 'dev-python/lit[${PYTHON_USEDEP}]') )"
S=${WORKDIR}/${MY_P}
# least intrusive of all
CMAKE_BUILD_TYPE=RelWithDebInfo
python_check_deps() {
has_version "dev-python/lit[${PYTHON_USEDEP}]"
}
pkg_setup() {
llvm_pkg_setup
use test && python-any-r1_pkg_setup
}
src_unpack() {
default
mv "${LIBCXX_P}" libcxx || die
}
multilib_src_configure() {
local libdir=$(get_libdir)
local mycmakeargs=(
-DLIBCXXABI_LIBDIR_SUFFIX=${libdir#lib}
-DLIBCXXABI_ENABLE_SHARED=ON
-DLIBCXXABI_ENABLE_STATIC=$(usex static-libs)
-DLIBCXXABI_USE_LLVM_UNWINDER=$(usex libunwind)
-DLIBCXXABI_INCLUDE_TESTS=$(usex test)
-DLIBCXXABI_LIBCXX_INCLUDES="${WORKDIR}"/libcxx/include
# upstream is omitting standard search path for this
# probably because gcc & clang are bundling their own unwind.h
-DLIBCXXABI_LIBUNWIND_INCLUDES="${EPREFIX}"/usr/include
)
if use test; then
mycmakeargs+=(
-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
-DLLVM_LIT_ARGS="-vv;-j;${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}"
)
fi
cmake-utils_src_configure
}
build_libcxx() {
local -x LDFLAGS="${LDFLAGS} -L${BUILD_DIR}/$(get_libdir)"
local CMAKE_USE_DIR=${WORKDIR}/libcxx
local BUILD_DIR=${BUILD_DIR}/libcxx
local mycmakeargs=(
-DLIBCXX_LIBDIR_SUFFIX=
-DLIBCXX_ENABLE_SHARED=ON
-DLIBCXX_ENABLE_STATIC=OFF
-DLIBCXX_ENABLE_EXPERIMENTAL_LIBRARY=OFF
-DLIBCXX_CXX_ABI=libcxxabi
-DLIBCXX_CXX_ABI_INCLUDE_PATHS="${S}"/include
-DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=OFF
-DLIBCXX_HAS_MUSL_LIBC=$(usex elibc_musl)
-DLIBCXX_HAS_GCC_S_LIB=OFF
-DLIBCXX_INCLUDE_TESTS=OFF
)
cmake-utils_src_configure
cmake-utils_src_compile
}
multilib_src_test() {
local clang_path=$(type -P "${CHOST:+${CHOST}-}clang" 2>/dev/null)
[[ -n ${clang_path} ]] || die "Unable to find ${CHOST}-clang for tests"
sed -i -e "/cxx_under_test/s^\".*\"^\"${clang_path}\"^" test/lit.site.cfg || die
# build a local copy of libc++ for testing to avoid circular dep
build_libcxx
cp "${BUILD_DIR}"/libcxx/lib/libc++* "${BUILD_DIR}/$(get_libdir)/" || die
cmake-utils_src_make check-libcxxabi
}
multilib_src_install_all() {
insinto /usr/include/libcxxabi
doins -r include/.
}
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