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# Copyright 1999-2020 Gentoo Authors
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# Distributed under the terms of the GNU General Public License v2
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EAPI=7
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PYTHON_COMPAT=( python{2_7,3_{6,7}} )
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inherit cmake-utils llvm llvm.org multiprocessing python-any-r1
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DESCRIPTION="OCaml bindings for LLVM"
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HOMEPAGE="https://llvm.org/"
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LLVM_COMPONENTS=( llvm )
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llvm.org_set_globals
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# Keep in sync with sys-devel/llvm
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ALL_LLVM_EXPERIMENTAL_TARGETS=( ARC AVR )
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ALL_LLVM_TARGETS=( AArch64 AMDGPU ARM BPF Hexagon Lanai Mips MSP430
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NVPTX PowerPC RISCV Sparc SystemZ WebAssembly X86 XCore
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"${ALL_LLVM_EXPERIMENTAL_TARGETS[@]}" )
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ALL_LLVM_TARGETS=( "${ALL_LLVM_TARGETS[@]/#/llvm_targets_}" )
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LLVM_TARGET_USEDEPS=${ALL_LLVM_TARGETS[@]/%/?}
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LICENSE="Apache-2.0-with-LLVM-exceptions UoI-NCSA"
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SLOT="0/${PV}"
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KEYWORDS=""
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IUSE="debug test ${ALL_LLVM_TARGETS[*]}"
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REQUIRED_USE="|| ( ${ALL_LLVM_TARGETS[*]} )"
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RESTRICT="!test? ( test )"
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RDEPEND="
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>=dev-lang/ocaml-4.00.0:0=
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dev-ml/ocaml-ctypes:=
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~sys-devel/llvm-${PV}:=[${LLVM_TARGET_USEDEPS// /,},debug?]
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!sys-devel/llvm[ocaml(-)]"
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DEPEND="${RDEPEND}"
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BDEPEND="
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dev-lang/perl
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dev-ml/findlib
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test? ( dev-ml/ounit )
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${PYTHON_DEPS}"
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# least intrusive of all
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CMAKE_BUILD_TYPE=RelWithDebInfo
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pkg_setup() {
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LLVM_MAX_SLOT=${PV%%.*} llvm_pkg_setup
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python-any-r1_pkg_setup
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}
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src_prepare() {
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# Python is needed to run tests using lit
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python_setup
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cmake-utils_src_prepare
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}
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src_configure() {
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local libdir=$(get_libdir)
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local mycmakeargs=(
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-DLLVM_LIBDIR_SUFFIX=${libdir#lib}
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-DBUILD_SHARED_LIBS=OFF
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-DLLVM_BUILD_LLVM_DYLIB=ON
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-DLLVM_LINK_LLVM_DYLIB=ON
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-DLLVM_OCAML_OUT_OF_TREE=ON
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# cheap hack: LLVM combines both anyway, and the only difference
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# is that the former list is explicitly verified at cmake time
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-DLLVM_TARGETS_TO_BUILD=""
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-DLLVM_EXPERIMENTAL_TARGETS_TO_BUILD="${LLVM_TARGETS// /;}"
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-DLLVM_BUILD_TESTS=$(usex test)
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# disable various irrelevant deps and settings
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-DLLVM_ENABLE_FFI=OFF
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-DLLVM_ENABLE_TERMINFO=OFF
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-DHAVE_HISTEDIT_H=NO
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-DWITH_POLLY=OFF
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-DLLVM_ENABLE_ASSERTIONS=$(usex debug)
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-DLLVM_ENABLE_EH=ON
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-DLLVM_ENABLE_RTTI=ON
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-DLLVM_HOST_TRIPLE="${CHOST}"
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# disable go bindings
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-DGO_EXECUTABLE=GO_EXECUTABLE-NOTFOUND
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# TODO: ocamldoc
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)
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use test && mycmakeargs+=(
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-DLLVM_LIT_ARGS="-vv;-j;${LIT_JOBS:-$(makeopts_jobs "${MAKEOPTS}" "$(get_nproc)")}"
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)
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# LLVM_ENABLE_ASSERTIONS=NO does not guarantee this for us, #614844
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# also: custom rules for OCaml do not work for CPPFLAGS
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use debug || local -x CFLAGS="${CFLAGS} -DNDEBUG"
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cmake-utils_src_configure
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local llvm_libdir=$(llvm-config --libdir)
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# an ugly hack; TODO: figure out a way to pass -L to ocaml...
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cd "${BUILD_DIR}/${libdir}" || die
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ln -s "${llvm_libdir}"/*.so . || die
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if use test; then
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local llvm_bindir=$(llvm-config --bindir)
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# Force using system-installed tools.
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sed -i -e "/llvm_tools_dir/s@\".*\"@\"${llvm_bindir}\"@" \
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"${BUILD_DIR}"/test/lit.site.cfg.py || die
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fi
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}
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src_compile() {
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cmake-utils_src_compile ocaml_all
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}
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src_test() {
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# respect TMPDIR!
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local -x LIT_PRESERVES_TMP=1
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cmake-utils_src_make check-llvm-bindings-ocaml
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}
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src_install() {
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DESTDIR="${D}" \
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cmake -P "${BUILD_DIR}"/bindings/ocaml/cmake_install.cmake || die
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dodoc bindings/ocaml/README.txt
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}
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