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# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-libs/libcxx/libcxx-9999.ebuild,v 1.15 2013/07/03 21:17:16 aballier Exp $
EAPI=5
ESVN_REPO_URI="http://llvm.org/svn/llvm-project/libcxx/trunk"
[ "${PV%9999}" != "${PV}" ] && SCM="subversion" || SCM=""
inherit ${SCM} flag-o-matic toolchain-funcs multilib
DESCRIPTION="New implementation of the C++ standard library, targeting C++11"
HOMEPAGE="http://libcxx.llvm.org/"
if [ "${PV%9999}" = "${PV}" ] ; then
SRC_URI="mirror://gentoo/${P}.tar.xz"
else
SRC_URI=""
fi
LICENSE="|| ( UoI-NCSA MIT )"
SLOT="0"
if [ "${PV%9999}" = "${PV}" ] ; then
KEYWORDS="~amd64 ~x86 ~amd64-fbsd ~amd64-linux ~x86-linux"
else
KEYWORDS=""
fi
IUSE="elibc_glibc +libcxxrt static-libs test"
RDEPEND="libcxxrt? ( >=sys-libs/libcxxrt-0.0_p20130530[static-libs?] )
!libcxxrt? ( sys-devel/gcc[cxx] )"
DEPEND="${RDEPEND}
test? ( sys-devel/clang )
app-arch/xz-utils"
src_prepare() {
cp -f "${FILESDIR}/Makefile" lib/ || die
}
src_compile() {
export LIBS="-lpthread -lrt -lc -lgcc_s"
if use libcxxrt ; then
append-cppflags -DLIBCXXRT "-I${EPREFIX}/usr/include/libcxxrt/"
LIBS="-lcxxrt ${LIBS}"
else
# Very hackish, see $HOMEPAGE
# If someone has a clever idea, please share it!
local includes="$(echo | "$(tc-getCXX)" -Wp,-v -x c++ - -fsyntax-only 2>&1 | grep -C 2 '#include.*<...>' | tail -n 2 | sed -e 's/^ /-I/' | tr '\n' ' ')"
append-cppflags -D__GLIBCXX__ ${includes}
LIBS="-lsupc++ ${LIBS}"
fi
tc-export AR CC CXX
append-ldflags "-Wl,-z,defs" # make sure we are not underlinked
cd "${S}/lib" || die
emake shared
use static-libs && emake static
}
# Tests fail for now, if anybody is able to fix them, help is very welcome.
src_test() {
cd "${S}/test"
LD_LIBRARY_PATH="${S}/lib:${LD_LIBRARY_PATH}" \
CC="clang++" \
HEADER_INCLUDE="-I${S}/include" \
SOURCE_LIB="-L${S}/lib" \
LIBS="-lm" \
./testit || die
}
gen_static_ldscript() {
if use libcxxrt ; then
# Move it first.
mv "${D}/${EPREFIX}/usr/$(get_libdir)/libc++.a" "${D}/${EPREFIX}/usr/$(get_libdir)/libc++_static.a" || die
# Generate libc++.a ldscript for inclusion of its dependencies so that
# clang++ -stdlib=libc++ -static works out of the box.
# Taken from toolchain-funcs.eclass:
local output_format
output_format=$($(tc-getCC) ${CFLAGS} ${LDFLAGS} -Wl,--verbose 2>&1 | sed -n 's/^OUTPUT_FORMAT("\([^"]*\)",.*/\1/p')
[[ -n ${output_format} ]] && output_format="OUTPUT_FORMAT ( ${output_format} )"
local deps="${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"
cat > "${D}/${EPREFIX}/usr/$(get_libdir)/libc++.a" <<-END_LDSCRIPT
/* GNU ld script
Include libc++.a dependencies for 'clang++ -stdlib=libc++ -static' to work
out of the box.
*/
${output_format}
GROUP ( ${deps} )
END_LDSCRIPT
fi
# TODO: Generate a libc++.a ldscript when building against libsupc++
}
src_install() {
cd "${S}/lib"
if use static-libs ; then
dolib.a libc++.a
gen_static_ldscript
fi
dolib.so libc++.so*
cd "${S}"
insinto /usr/include/c++/v1
doins -r include/*
dodoc CREDITS.TXT
}
pkg_postinst() {
elog "This package (${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."
}
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