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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 cmake flag-o-matic llvm.org llvm-utils python-any-r1 toolchain-funcs
DESCRIPTION="The LLVM linker (link editor)"
HOMEPAGE="https://llvm.org/"
LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
SLOT="${LLVM_MAJOR}/${LLVM_SOABI}"
IUSE="+debug test zstd"
RESTRICT="!test? ( test )"
DEPEND="
~sys-devel/llvm-${PV}[debug=,zstd=]
sys-libs/zlib:=
zstd? ( app-arch/zstd:= )
"
RDEPEND="
${DEPEND}
!sys-devel/lld:0
"
BDEPEND="
sys-devel/llvm:${LLVM_MAJOR}
test? (
$(python_gen_any_dep ">=dev-python/lit-${PV}[\${PYTHON_USEDEP}]")
)
"
PDEPEND="
>=sys-devel/lld-toolchain-symlinks-16-r2:${LLVM_MAJOR}
"
LLVM_COMPONENTS=( lld cmake libunwind/include/mach-o )
llvm.org_set_globals
python_check_deps() {
python_has_version ">=dev-python/lit-${PV}[${PYTHON_USEDEP}]"
}
pkg_setup() {
use test && python-any-r1_pkg_setup
}
src_unpack() {
llvm.org_src_unpack
# Directory ${WORKDIR}/llvm does not exist with USE="-test",
# but LLVM_MAIN_SRC_DIR="${WORKDIR}/llvm" is set below,
# and ${LLVM_MAIN_SRC_DIR}/../libunwind/include is used by build system
# (lld/MachO/CMakeLists.txt) and is expected to be resolvable
# to existent directory ${WORKDIR}/libunwind/include.
mkdir -p "${WORKDIR}/llvm" || die
}
src_configure() {
llvm_prepend_path "${LLVM_MAJOR}"
# ODR violations (https://github.com/llvm/llvm-project/issues/83529, bug #922353)
filter-lto
# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
use debug || local -x CPPFLAGS="${CPPFLAGS} -DNDEBUG"
use elibc_musl && append-ldflags -Wl,-z,stack-size=2097152
local mycmakeargs=(
-DCMAKE_INSTALL_PREFIX="${EPREFIX}/usr/lib/llvm/${LLVM_MAJOR}"
-DBUILD_SHARED_LIBS=ON
-DLLVM_INCLUDE_TESTS=$(usex test)
-DLLVM_ENABLE_ZLIB=FORCE_ON
-DLLVM_ENABLE_ZSTD=$(usex zstd FORCE_ON OFF)
)
use test && mycmakeargs+=(
-DLLVM_EXTERNAL_LIT="${EPREFIX}/usr/bin/lit"
-DLLVM_LIT_ARGS="$(get_lit_flags)"
-DPython3_EXECUTABLE="${PYTHON}"
)
tc-is-cross-compiler && mycmakeargs+=(
-DLLVM_TABLEGEN_EXE="${BROOT}/usr/lib/llvm/${LLVM_MAJOR}/bin/llvm-tblgen"
)
cmake_src_configure
}
src_test() {
local -x LIT_PRESERVES_TMP=1
cmake_build check-lld
}
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