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# Copyright 1999-2020 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=7
PYTHON_COMPAT=( python3_{6,7} )
inherit cmake-utils llvm llvm.org multiprocessing python-any-r1
DESCRIPTION="OCaml bindings for LLVM"
HOMEPAGE="https://llvm.org/"
LLVM_COMPONENTS=( llvm )
llvm.org_set_globals
# Keep in sync with sys-devel/llvm
ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore )
ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
SLOT="0/${PV}"
KEYWORDS="~amd64 ~arm ~x86"
IUSE="debug test ${ALL_LLVM_TARGETS[*]}"
REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )"
RESTRICT="!test? ( test )"
RDEPEND="
>=dev-lang/ocaml-4.00.0:0=
dev-ml/ocaml-ctypes:=
~sys-devel/llvm-${PV}:=[${LLVM_TARGET_USEDEPS// /,},debug?]
!sys-devel/llvm[ocaml(-)]"
DEPEND="${RDEPEND}"
BDEPEND="
dev-lang/perl
dev-ml/findlib
test? ( dev-ml/ounit )
${PYTHON_DEPS}"
# least intrusive of all
CMAKE_BUILD_TYPE=RelWithDebInfo
pkg_setup() {
LLVM_MAX_SLOT=${PV%%.*} llvm_pkg_setup
python-any-r1_pkg_setup
}
src_prepare() {
# Python is needed to run tests using lit
python_setup
cmake-utils_src_prepare
}
src_configure() {
local libdir=$(get_libdir)
local mycmakeargs=(
-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
-DBUILD_SHARED_LIBS=ON
-DLLVM_OCAML_OUT_OF_TREE=ON
-DLLVM_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
-DLLVM_BUILD_TESTS=$(usex test)
# disable various irrelevant deps and settings
-DLLVM_ENABLE_FFI=OFF
-DLLVM_ENABLE_TERMINFO=OFF
-DHAVE_HISTEDIT_H=NO
-DWITH_POLLY=OFF
-DLLVM_ENABLE_ASSERTIONS=$(usex debug)
-DLLVM_ENABLE_EH=ON
-DLLVM_ENABLE_RTTI=ON
-DLLVM_HOST_TRIPLE="${CHOST}"
# disable go bindings
-DGO_EXECUTABLE=GO_EXECUTABLE-NOTFOUND
# TODO: ocamldoc
)
use test && mycmakeargs+=(
-DLLVM_LIT_ARGS="-vv;-j;${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}"
)
# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
# also: custom rules for OCaml do not work for CPPFLAGS
use debug || local -x CFLAGS="${CFLAGS} -DNDEBUG"
cmake-utils_src_configure
local llvm_libdir=$(llvm-config --libdir)
# an ugly hack; TODO: figure out a way to pass -L to ocaml...
cd "${BUILD_DIR}/${libdir}" || die
ln -s "${llvm_libdir}"/*.so . || die
if use test; then
local llvm_bindir=$(llvm-config --bindir)
# Force using system-installed tools.
sed -i -e "/llvm_tools_dir/s@\".*\"@\"${llvm_bindir}\"@" \
"${BUILD_DIR}"/test/lit.site.cfg.py || die
fi
}
src_compile() {
cmake-utils_src_compile ocaml_all
}
src_test() {
# respect TMPDIR!
local -x LIT_PRESERVES_TMP=1
cmake-utils_src_make check-llvm-bindings-ocaml
}
src_install() {
DESTDIR="${D}" \
cmake -P "${BUILD_DIR}"/bindings/ocaml/cmake_install.cmake || die
dodoc bindings/ocaml/README.txt
}
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