diff options
Diffstat (limited to 'sys-libs/libcxx/libcxx-3.6.1.ebuild')
| -rw-r--r-- | sys-libs/libcxx/libcxx-3.6.1.ebuild | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/sys-libs/libcxx/libcxx-3.6.1.ebuild b/sys-libs/libcxx/libcxx-3.6.1.ebuild new file mode 100644 index 000000000000..92689d826fc6 --- /dev/null +++ b/sys-libs/libcxx/libcxx-3.6.1.ebuild @@ -0,0 +1,170 @@ +# Copyright 1999-2015 Gentoo Foundation +# Distributed under the terms of the GNU General Public License v2 +# $Id$ + +EAPI=5 + +ESVN_REPO_URI="http://llvm.org/svn/llvm-project/libcxx/trunk" + +[ "${PV%9999}" != "${PV}" ] && SCM="subversion" || SCM="" + +inherit ${SCM} flag-o-matic toolchain-funcs multilib multilib-minimal + +DESCRIPTION="New implementation of the C++ standard library, targeting C++11" +HOMEPAGE="http://libcxx.llvm.org/" +if [ "${PV%9999}" = "${PV}" ] ; then + SRC_URI="http://llvm.org/releases/${PV}/${P}.src.tar.xz" + S="${WORKDIR}/${P}.src" +else + SRC_URI="" +fi + +LICENSE="|| ( UoI-NCSA MIT )" +SLOT="0" +if [ "${PV%9999}" = "${PV}" ] ; then + KEYWORDS="~amd64 ~mips ~x86 ~amd64-fbsd ~x86-fbsd ~amd64-linux ~x86-linux" +else + KEYWORDS="" +fi +IUSE="elibc_glibc +libcxxrt +static-libs test" + +RDEPEND="libcxxrt? ( >=sys-libs/libcxxrt-0.0_p20130725[static-libs?,${MULTILIB_USEDEP}] ) + !libcxxrt? ( >=sys-devel/gcc-4.7:=[cxx] )" +DEPEND="${RDEPEND} + test? ( sys-devel/clang ) + app-arch/xz-utils" + +DOCS=( CREDITS.TXT ) + +pkg_setup() { + if ! use libcxxrt ; then + ewarn "You have disabled USE=libcxxrt. This will build ${PN} against" + ewarn "libsupc++. Please note that this is not well supported." + ewarn "In particular, static linking will not work." + fi + if [[ $(gcc-version) < 4.7 ]] && [[ $(tc-getCXX) != *clang++* ]] ; then + eerror "${PN} needs to be built with clang++ or gcc-4.7 or later." + eerror "Please use gcc-config to switch to gcc-4.7 or later version." + die + fi +} + +src_prepare() { + cp -f "${FILESDIR}/Makefile" lib/ || die + multilib_copy_sources +} + +src_configure() { + export LIBS="-lpthread -lrt -lc -lgcc_s" + if use libcxxrt ; then + append-cppflags -DLIBCXXRT "-I${EPREFIX}/usr/include/libcxxrt/" + LIBS="-lcxxrt ${LIBS}" + cp "${EPREFIX}/usr/include/libcxxrt/"*.h "${S}/include" + else + # Very hackish, see $HOMEPAGE + # If someone has a clever idea, please share it! + local includes="$(echo | ${CHOST}-g++ -Wp,-v -x c++ - -fsyntax-only 2>&1 | grep -C 2 '#include.*<...>' | tail -n 2 | sed -e 's/^ /-I/' | tr '\n' ' ')" + local libcxx_gcc_dirs="$(echo | ${CHOST}-g++ -Wp,-v -x c++ - -fsyntax-only 2>&1 | grep -C 2 '#include.*<...>' | tail -n 2 | tr '\n' ' ')" + append-cppflags -D__GLIBCXX__ ${includes} + LIBS="-lsupc++ ${LIBS}" + local libsupcxx_includes="cxxabi.h bits/c++config.h bits/os_defines.h bits/cpu_defines.h bits/cxxabi_tweaks.h bits/cxxabi_forced.h" + for i in ${libsupcxx_includes} ; do + local found="" + [ -d "${S}/include/$(dirname ${i})/" ] || mkdir -p "${S}/include/$(dirname ${i})" + for j in ${libcxx_gcc_dirs} ; do + if [ -f "${j}/${i}" ] ; then + cp "${j}/${i}" "${S}/include/$(dirname ${i})/" || die + found=yes + fi + done + [ -n "${found}" ] || die "Header not found: ${i}" + done + fi + + tc-export AR CC CXX + + append-ldflags "-Wl,-z,defs" # make sure we are not underlinked +} + +multilib_src_compile() { + cd "${BUILD_DIR}/lib" || die + emake shared + use static-libs && emake static +} + +# Tests fail for now, if anybody is able to fix them, help is very welcome. +multilib_src_test() { + cd "${BUILD_DIR}/test" + LD_LIBRARY_PATH="${BUILD_DIR}/lib:${LD_LIBRARY_PATH}" \ + CC="clang++ $(get_abi_CFLAGS) ${CXXFLAGS}" \ + HEADER_INCLUDE="-I${BUILD_DIR}/include" \ + SOURCE_LIB="-L${BUILD_DIR}/lib" \ + LIBS="-lm $(usex libcxxrt -lcxxrt "")" \ + ./testit || die + # TODO: fix link against libsupc++ +} + +# Usage: deps +gen_ldscript() { + local output_format + output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p') + [[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )" + + cat <<-END_LDSCRIPT +/* GNU ld script + Include missing dependencies +*/ +${output_format} +GROUP ( $@ ) +END_LDSCRIPT +} + +gen_static_ldscript() { + if use libcxxrt ; then + # Move it first. + mv "${ED}/usr/$(get_libdir)/libc++.a" "${ED}/usr/$(get_libdir)/libc++_static.a" || die + + # Generate libc++.a ldscript for inclusion of its dependencies so that + # clang++ -stdlib=libc++ -static works out of the box. + local deps="${EPREFIX}/usr/$(get_libdir)/libc++_static.a ${EPREFIX}/usr/$(get_libdir)/libcxxrt.a" + # On Linux/glibc it does not link without libpthread or libdl. It is + # fine on FreeBSD. + use elibc_glibc && deps="${deps} ${EPREFIX}/usr/$(get_libdir)/libpthread.a ${EPREFIX}/usr/$(get_libdir)/libdl.a" + + gen_ldscript "${deps}" > "${ED}/usr/$(get_libdir)/libc++.a" + fi + # TODO: Generate a libc++.a ldscript when building against libsupc++ +} + +gen_shared_ldscript() { + if use libcxxrt ; then + mv "${ED}/usr/$(get_libdir)/libc++.so" "${ED}/usr/$(get_libdir)/libc++_shared.so" || die + local deps="${EPREFIX}/usr/$(get_libdir)/libc++_shared.so ${EPREFIX}/usr/$(get_libdir)/libcxxrt.so" + gen_ldscript "${deps}" > "${ED}/usr/$(get_libdir)/libc++.so" + fi + # TODO: Generate the linker script for other confiurations too. +} + +multilib_src_install() { + cd "${BUILD_DIR}/lib" + if use static-libs ; then + dolib.a libc++.a + gen_static_ldscript + fi + dolib.so libc++.so* + gen_shared_ldscript +} + +multilib_src_install_all() { + einstalldocs + insinto /usr/include/c++/v1 + doins -r include/* +} + +pkg_postinst() { + elog "This package (${PN}) is mainly intended as a replacement for the C++" + elog "standard library when using clang." + elog "To use it, instead of libstdc++, use:" + elog " clang++ -stdlib=libc++" + elog "to compile your C++ programs." +} |