--- /dev/null
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+EAPI=5
+
+: ${CMAKE_MAKEFILE_GENERATOR:=ninja}
+PYTHON_COMPAT=( python2_7 pypy )
+
+inherit check-reqs cmake-utils eutils flag-o-matic multilib \
+ multilib-minimal python-r1 toolchain-funcs pax-utils
+
+DESCRIPTION="Low Level Virtual Machine"
+HOMEPAGE="http://llvm.org/"
+SRC_URI="http://llvm.org/releases/${PV}/${P}.src.tar.xz
+ clang? ( http://llvm.org/releases/${PV}/compiler-rt-${PV}.src.tar.xz
+ http://llvm.org/releases/${PV}/cfe-${PV}.src.tar.xz
+ http://llvm.org/releases/${PV}/clang-tools-extra-${PV}.src.tar.xz )
+ lldb? ( http://llvm.org/releases/${PV}/lldb-${PV}.src.tar.xz )
+ !doc? ( http://dev.gentoo.org/~voyageur/distfiles/${P}-manpages.tar.bz2 )"
+
+LICENSE="UoI-NCSA"
+SLOT="0/${PV}"
+KEYWORDS="~amd64 ~arm ~arm64 ~ppc ~ppc64 ~sparc ~x86 ~amd64-fbsd ~x86-fbsd ~x64-freebsd ~amd64-linux ~arm-linux ~x86-linux ~ppc-macos ~x64-macos ~x86-macos"
+IUSE="clang debug doc gold libedit +libffi lldb multitarget ncurses ocaml
+ python +static-analyzer test xml video_cards_radeon kernel_Darwin"
+
+COMMON_DEPEND="
+ sys-libs/zlib:0=
+ clang? (
+ python? ( ${PYTHON_DEPS} )
+ static-analyzer? (
+ dev-lang/perl:*
+ ${PYTHON_DEPS}
+ )
+ xml? ( dev-libs/libxml2:2=[${MULTILIB_USEDEP}] )
+ )
+ gold? ( >=sys-devel/binutils-2.22:*[cxx] )
+ libedit? ( dev-libs/libedit:0=[${MULTILIB_USEDEP}] )
+ libffi? ( >=virtual/libffi-3.0.13-r1:0=[${MULTILIB_USEDEP}] )
+ ncurses? ( >=sys-libs/ncurses-5.9-r3:0=[${MULTILIB_USEDEP}] )
+ ocaml? (
+ dev-lang/ocaml:0=
+ dev-ml/findlib
+ dev-ml/ocaml-ctypes )"
+# configparser-3.2 breaks the build (3.3 or none at all are fine)
+DEPEND="${COMMON_DEPEND}
+ dev-lang/perl
+ >=sys-devel/make-3.81
+ >=sys-devel/flex-2.5.4
+ >=sys-devel/bison-1.875d
+ || ( >=sys-devel/gcc-3.0 >=sys-devel/llvm-3.5
+ ( >=sys-freebsd/freebsd-lib-9.1-r10 sys-libs/libcxx )
+ )
+ || ( >=sys-devel/binutils-2.18 >=sys-devel/binutils-apple-5.1 )
+ kernel_Darwin? ( sys-libs/libcxx )
+ clang? ( xml? ( virtual/pkgconfig ) )
+ doc? ( dev-python/sphinx )
+ libffi? ( virtual/pkgconfig )
+ lldb? ( dev-lang/swig )
+ !!<dev-python/configparser-3.3.0.2
+ ocaml? ( test? ( dev-ml/ounit ) )
+ ${PYTHON_DEPS}"
+RDEPEND="${COMMON_DEPEND}
+ clang? ( !<=sys-devel/clang-${PV}-r99 )
+ abi_x86_32? ( !<=app-emulation/emul-linux-x86-baselibs-20130224-r2
+ !app-emulation/emul-linux-x86-baselibs[-abi_x86_32(-)] )"
+PDEPEND="clang? ( =sys-devel/clang-${PV}-r100 )"
+
+# pypy gives me around 1700 unresolved tests due to open file limit
+# being exceeded. probably GC does not close them fast enough.
+REQUIRED_USE="${PYTHON_REQUIRED_USE}
+ lldb? ( clang )
+ test? ( || ( $(python_gen_useflags 'python*') ) )"
+
+S=${WORKDIR}/${P/_}.src
+
+pkg_pretend() {
+ # in megs
+ # !clang !debug !multitarget -O2 400
+ # !clang !debug multitarget -O2 550
+ # clang !debug !multitarget -O2 950
+ # clang !debug multitarget -O2 1200
+ # !clang debug multitarget -O2 5G
+ # clang !debug multitarget -O0 -g 12G
+ # clang debug multitarget -O2 16G
+ # clang debug multitarget -O0 -g 14G
+
+ local build_size=550
+ use clang && build_size=1200
+
+ if use debug; then
+ ewarn "USE=debug is known to increase the size of package considerably"
+ ewarn "and cause the tests to fail."
+ ewarn
+
+ (( build_size *= 14 ))
+ elif is-flagq '-g?(gdb)?([1-9])'; then
+ ewarn "The C++ compiler -g option is known to increase the size of the package"
+ ewarn "considerably. If you run out of space, please consider removing it."
+ ewarn
+
+ (( build_size *= 10 ))
+ fi
+
+ # Multiply by number of ABIs :).
+ local abis=( $(multilib_get_enabled_abis) )
+ (( build_size *= ${#abis[@]} ))
+
+ local CHECKREQS_DISK_BUILD=${build_size}M
+ check-reqs_pkg_pretend
+
+ if [[ ${MERGE_TYPE} != binary ]]; then
+ echo 'int main() {return 0;}' > "${T}"/test.cxx || die
+ ebegin "Trying to build a C++11 test program"
+ if ! $(tc-getCXX) -std=c++11 -o /dev/null "${T}"/test.cxx; then
+ eerror "LLVM-${PV} requires C++11-capable C++ compiler. Your current compiler"
+ eerror "does not seem to support -std=c++11 option. Please upgrade your compiler"
+ eerror "to gcc-4.7 or an equivalent version supporting C++11."
+ die "Currently active compiler does not support -std=c++11"
+ fi
+ eend ${?}
+ fi
+}
+
+pkg_setup() {
+ pkg_pretend
+}
+
+src_unpack() {
+ default
+
+ if use clang; then
+ mv "${WORKDIR}"/cfe-${PV/_}.src "${S}"/tools/clang \
+ || die "clang source directory move failed"
+ mv "${WORKDIR}"/compiler-rt-${PV/_}.src "${S}"/projects/compiler-rt \
+ || die "compiler-rt source directory move failed"
+ mv "${WORKDIR}"/clang-tools-extra-${PV/_}.src "${S}"/tools/clang/tools/extra \
+ || die "clang-tools-extra source directory move failed"
+ fi
+
+ if use lldb; then
+ mv "${WORKDIR}"/lldb-${PV/_}.src "${S}"/tools/lldb \
+ || die "lldb source directory move failed"
+ fi
+}
+
+src_prepare() {
+ # Make ocaml warnings non-fatal, bug #537308
+ sed -e "/RUN/s/-warn-error A//" -i test/Bindings/OCaml/*ml || die
+ # Fix libdir for ocaml bindings install, bug #559134
+ epatch "${FILESDIR}"/cmake/${P}-ocaml-multilib.patch
+
+ # Make it possible to override Sphinx HTML install dirs
+ # https://llvm.org/bugs/show_bug.cgi?id=23780
+ epatch "${FILESDIR}"/cmake/0002-cmake-Support-overriding-Sphinx-HTML-doc-install-dir.patch
+
+ # Prevent race conditions with parallel Sphinx runs
+ # https://llvm.org/bugs/show_bug.cgi?id=23781
+ epatch "${FILESDIR}"/cmake/0003-cmake-Add-an-ordering-dep-between-HTML-man-Sphinx-ta.patch
+
+ # Prevent installing libgtest
+ # https://llvm.org/bugs/show_bug.cgi?id=18341
+ epatch "${FILESDIR}"/cmake/0004-cmake-Do-not-install-libgtest.patch
+
+ if use clang; then
+ # Automatically select active system GCC's libraries, bugs #406163 and #417913
+ epatch "${FILESDIR}"/clang-3.5-gentoo-runtime-gcc-detection-v3.patch
+
+ epatch "${FILESDIR}"/clang-3.6-gentoo-install.patch
+
+ sed -i -e "s^@EPREFIX@^${EPREFIX}^" \
+ tools/clang/tools/scan-build/scan-build || die
+
+ # Install clang runtime into /usr/lib/clang
+ # https://llvm.org/bugs/show_bug.cgi?id=23792
+ epatch "${FILESDIR}"/cmake/clang-0001-Install-clang-runtime-into-usr-lib-without-suffix.patch
+ epatch "${FILESDIR}"/cmake/compiler-rt-0001-cmake-Install-compiler-rt-into-usr-lib-without-suffi.patch
+
+ # Make it possible to override CLANG_LIBDIR_SUFFIX
+ # (that is used only to find LLVMgold.so)
+ # https://llvm.org/bugs/show_bug.cgi?id=23793
+ epatch "${FILESDIR}"/cmake/clang-0002-cmake-Make-CLANG_LIBDIR_SUFFIX-overridable.patch
+
+ # Fix WX sections, bug #421527
+ find "${S}"/projects/compiler-rt/lib/builtins -type f -name \*.S -exec sed \
+ -e '$a\\n#if defined(__linux__) && defined(__ELF__)\n.section .note.GNU-stack,"",%progbits\n#endif' \
+ -i {} \; || die
+
+ # Workaround bug #553416 until upstream fixes it
+ epatch "${FILESDIR}"/clang-3.7-strip_doc_refs.patch
+ fi
+
+ if use lldb; then
+ # Do not install dummy readline.so module from
+ # https://llvm.org/bugs/show_bug.cgi?id=18841
+ sed -e 's/add_subdirectory(readline)/#&/' \
+ -i tools/lldb/scripts/Python/modules/CMakeLists.txt || die
+ fi
+
+ # User patches
+ epatch_user
+
+ python_setup
+
+ # Native libdir is used to hold LLVMgold.so
+ NATIVE_LIBDIR=$(get_libdir)
+}
+
+multilib_src_configure() {
+ local targets
+ if use multitarget; then
+ targets=all
+ else
+ targets='host;CppBackend'
+ use video_cards_radeon && targets+=';AMDGPU'
+ fi
+
+ local ffi_cflags ffi_ldflags
+ if use libffi; then
+ ffi_cflags=$(pkg-config --cflags-only-I libffi)
+ ffi_ldflags=$(pkg-config --libs-only-L libffi)
+ fi
+
+ local libdir=$(get_libdir)
+ local mycmakeargs=(
+ "${mycmakeargs[@]}"
+ -DLLVM_LIBDIR_SUFFIX=${libdir#lib}
+
+ -DBUILD_SHARED_LIBS=ON
+ -DLLVM_ENABLE_TIMESTAMPS=OFF
+ -DLLVM_TARGETS_TO_BUILD="${targets}"
+ -DLLVM_BUILD_TESTS=$(usex test)
+
+ -DLLVM_ENABLE_FFI=$(usex libffi)
+ -DLLVM_ENABLE_TERMINFO=$(usex ncurses)
+ -DLLVM_ENABLE_ASSERTIONS=$(usex debug)
+ -DLLVM_ENABLE_EH=ON
+ -DLLVM_ENABLE_RTTI=ON
+
+ -DWITH_POLLY=OFF # TODO
+
+ -DLLVM_HOST_TRIPLE="${CHOST}"
+
+ -DFFI_INCLUDE_DIR="${ffi_cflags#-I}"
+ -DFFI_LIBRARY_DIR="${ffi_ldflags#-L}"
+
+ -DHAVE_HISTEDIT_H=$(usex libedit)
+ )
+
+ if use lldb; then
+ mycmakeargs+=(
+ -DLLDB_DISABLE_LIBEDIT=$(usex !libedit)
+ -DLLDB_DISABLE_CURSES=$(usex !ncurses)
+ -DLLDB_ENABLE_TERMINFO=$(usex ncurses)
+ )
+ fi
+
+ if ! multilib_is_native_abi || ! use ocaml; then
+ mycmakeargs+=(
+ -DOCAMLFIND=NO
+ )
+ fi
+# Note: go bindings have no CMake rules at the moment
+# but let's kill the check in case they are introduced
+# if ! multilib_is_native_abi || ! use go; then
+ mycmakeargs+=(
+ -DGO_EXECUTABLE=GO_EXECUTABLE-NOTFOUND
+ )
+# fi
+
+ if multilib_is_native_abi; then
+ mycmakeargs+=(
+ -DLLVM_BUILD_DOCS=$(usex doc)
+ -DLLVM_ENABLE_SPHINX=$(usex doc)
+ -DLLVM_ENABLE_DOXYGEN=OFF
+ -DLLVM_INSTALL_HTML="${EPREFIX}/usr/share/doc/${PF}/html"
+ -DLLVM_INSTALL_UTILS=ON
+ )
+
+ if use clang; then
+ mycmakeargs+=(
+ -DCLANG_INSTALL_HTML="${EPREFIX}/usr/share/doc/${PF}/clang"
+ )
+ fi
+
+ if use gold; then
+ mycmakeargs+=(
+ -DLLVM_BINUTILS_INCDIR="${EPREFIX}"/usr/include
+ )
+ fi
+
+ if use lldb; then
+ mycmakeargs+=(
+ -DLLDB_DISABLE_PYTHON=$(usex !python)
+ )
+ fi
+
+ else
+ if use clang; then
+ mycmakeargs+=(
+ # disable compiler-rt on non-native ABI because:
+ # 1. it fails to configure because of -m32
+ # 2. it is shared between ABIs so no point building
+ # it multiple times
+ -DLLVM_EXTERNAL_COMPILER_RT_BUILD=OFF
+ -DLLVM_EXTERNAL_CLANG_TOOLS_EXTRA_BUILD=OFF
+ )
+ fi
+ if use lldb; then
+ mycmakeargs+=(
+ # only run swig on native abi
+ -DLLDB_DISABLE_PYTHON=ON
+ )
+ fi
+ fi
+
+ if use clang; then
+ mycmakeargs+=(
+ -DCLANG_ENABLE_ARCMT=$(usex static-analyzer)
+ -DCLANG_ENABLE_STATIC_ANALYZER=$(usex static-analyzer)
+ -DCLANG_LIBDIR_SUFFIX="${NATIVE_LIBDIR#lib}"
+ )
+
+ # -- not needed when compiler-rt is built with host compiler --
+ # cmake passes host C*FLAGS to compiler-rt build
+ # which is performed using clang, so we need to filter out
+ # some flags clang does not support
+ # (if you know some more flags that don't work, let us know)
+ #filter-flags -msahf -frecord-gcc-switches
+ fi
+
+ cmake-utils_src_configure
+}
+
+multilib_src_compile() {
+ cmake-utils_src_compile
+ # TODO: not sure why this target is not correctly called
+ multilib_is_native_abi && use doc && use ocaml && cmake-utils_src_make docs/ocaml_doc
+
+ pax-mark m "${BUILD_DIR}"/bin/llvm-rtdyld
+ pax-mark m "${BUILD_DIR}"/bin/lli
+ pax-mark m "${BUILD_DIR}"/bin/lli-child-target
+
+ if use test; then
+ pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/Orc/OrcJITTests
+ pax-mark m "${BUILD_DIR}"/unittests/ExecutionEngine/MCJIT/MCJITTests
+ pax-mark m "${BUILD_DIR}"/unittests/Support/SupportTests
+ fi
+}
+
+multilib_src_test() {
+ # respect TMPDIR!
+ local -x LIT_PRESERVES_TMP=1
+ local test_targets=( check )
+ # clang tests won't work on non-native ABI because we skip compiler-rt
+ multilib_is_native_abi && use clang && test_targets+=( check-clang )
+ cmake-utils_src_make "${test_targets[@]}"
+}
+
+src_install() {
+ local MULTILIB_CHOST_TOOLS=(
+ /usr/bin/llvm-config
+ )
+
+ local MULTILIB_WRAPPED_HEADERS=(
+ /usr/include/llvm/Config/config.h
+ /usr/include/llvm/Config/llvm-config.h
+ )
+
+ if use clang; then
+ # note: magic applied in multilib_src_install()!
+ CLANG_VERSION=${PV%.*}
+
+ MULTILIB_CHOST_TOOLS+=(
+ /usr/bin/clang
+ /usr/bin/clang++
+ /usr/bin/clang-cl
+ /usr/bin/clang-${CLANG_VERSION}
+ /usr/bin/clang++-${CLANG_VERSION}
+ /usr/bin/clang-cl-${CLANG_VERSION}
+ )
+
+ MULTILIB_WRAPPED_HEADERS+=(
+ /usr/include/clang/Config/config.h
+ )
+ fi
+
+ multilib-minimal_src_install
+}
+
+multilib_src_install() {
+ cmake-utils_src_install
+
+ if multilib_is_native_abi; then
+ # Install man pages.
+ use doc || doman "${WORKDIR}"/${P}-manpages/*.1
+
+ # Symlink the gold plugin.
+ if use gold; then
+ dodir "/usr/${CHOST}/binutils-bin/lib/bfd-plugins"
+ dosym "../../../../$(get_libdir)/LLVMgold.so" \
+ "/usr/${CHOST}/binutils-bin/lib/bfd-plugins/LLVMgold.so"
+ fi
+ fi
+
+ # apply CHOST and CLANG_VERSION to clang executables
+ # they're statically linked so we don't have to worry about the lib
+ if use clang; then
+ local clang_tools=( clang clang++ clang-cl )
+ local i
+
+ # cmake gives us:
+ # - clang-X.Y
+ # - clang -> clang-X.Y
+ # - clang++, clang-cl -> clang
+ # we want to have:
+ # - clang-X.Y
+ # - clang++-X.Y, clang-cl-X.Y -> clang-X.Y
+ # - clang, clang++, clang-cl -> clang*-X.Y
+ # so we need to fix the two tools
+ for i in "${clang_tools[@]:1}"; do
+ rm "${ED%/}/usr/bin/${i}" || die
+ dosym "clang-${CLANG_VERSION}" "/usr/bin/${i}-${CLANG_VERSION}"
+ dosym "${i}-${CLANG_VERSION}" "/usr/bin/${i}"
+ done
+
+ # now prepend ${CHOST} and let the multilib-build.eclass symlink it
+ if ! multilib_is_native_abi; then
+ # non-native? let's replace it with a simple wrapper
+ for i in "${clang_tools[@]}"; do
+ rm "${ED%/}/usr/bin/${i}-${CLANG_VERSION}" || die
+ cat > "${T}"/wrapper.tmp <<-_EOF_
+ #!${EPREFIX}/bin/sh
+ exec "${i}-${CLANG_VERSION}" $(get_abi_CFLAGS) "\${@}"
+ _EOF_
+ newbin "${T}"/wrapper.tmp "${i}-${CLANG_VERSION}"
+ done
+ fi
+ fi
+}
+
+multilib_src_install_all() {
+ insinto /usr/share/vim/vimfiles
+ doins -r utils/vim/*/
+ # some users may find it useful
+ dodoc utils/vim/vimrc
+
+ if use clang; then
+ pushd tools/clang >/dev/null || die
+
+ if use static-analyzer ; then
+ pushd tools/scan-build >/dev/null || die
+
+ dobin ccc-analyzer scan-build
+ dosym ccc-analyzer /usr/bin/c++-analyzer
+ doman scan-build.1
+
+ insinto /usr/share/llvm
+ doins scanview.css sorttable.js
+
+ popd >/dev/null || die
+ fi
+
+ python_inst() {
+ if use static-analyzer ; then
+ pushd tools/scan-view >/dev/null || die
+
+ python_doscript scan-view
+
+ touch __init__.py || die
+ python_moduleinto clang
+ python_domodule *.py Resources
+
+ popd >/dev/null || die
+ fi
+
+ if use python ; then
+ pushd bindings/python/clang >/dev/null || die
+
+ python_moduleinto clang
+ python_domodule *.py
+
+ popd >/dev/null || die
+ fi
+
+ # AddressSanitizer symbolizer (currently separate)
+ python_doscript "${S}"/projects/compiler-rt/lib/asan/scripts/asan_symbolize.py
+ }
+ python_foreach_impl python_inst
+ popd >/dev/null || die
+ fi
+}
+
+pkg_postinst() {
+ if use clang; then
+ elog "To enable OpenMP support in clang, install sys-libs/libomp"
+ elog "and use the '-fopenmp=libomp' command line option"
+ fi
+}
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