[gentoo-commits] repo/gentoo:master commit in: sys-libs/libcxx/

[Alexis Ballier]

commit:     38c169737779f639a3434bd8effe7b7a76d98ff3
Author:     Alexis Ballier <aballier <AT> gentoo <DOT> org>
AuthorDate: Tue Jan  5 07:43:13 2016 +0000
Commit:     Alexis Ballier <aballier <AT> gentoo <DOT> org>
CommitDate: Tue Jan  5 08:27:02 2016 +0000
URL:        https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=38c16973

sys-libs/libcxx: bump to 3.7.1

Package-Manager: portage-2.2.26
Signed-off-by: Alexis Ballier <aballier <AT> gentoo.org>

 sys-libs/libcxx/Manifest            |   1 +
 sys-libs/libcxx/libcxx-3.7.1.ebuild | 170 ++++++++++++++++++++++++++++++++++++
 2 files changed, 171 insertions(+)

diff --git a/sys-libs/libcxx/Manifest b/sys-libs/libcxx/Manifest
index 39d0adb..49261ca 100644
--- a/sys-libs/libcxx/Manifest
+++ b/sys-libs/libcxx/Manifest
@@ -1 +1,2 @@
 DIST libcxx-3.7.0.src.tar.xz 994580 SHA256 c18f3c8333cd7e678c1424a57fe5e25efe740ca7caf62ac67152b4723f3ad08e SHA512 e71d04efa0fafab129a97ca6f4fd7b5f185258de7455c7a25d0964f459bc6068c69c5d67199f6d7cd3541bdce630106cbaf3b7099e4737dddbdd57c77a3fe054 WHIRLPOOL 26672e3f6e0772504e7ee174c37e5fc20079c730ac8bd0d2563d5415ca9589360aa3be42a8aac15eb5a63c69227bd4911aa822b158b9a35e3d74ec0d71bb1300
+DIST libcxx-3.7.1.src.tar.xz 995724 SHA256 357fbd4288ce99733ba06ae2bec6f503413d258aeebaab8b6a791201e6f7f144 SHA512 08d2399a8b36aa15290733256c896c9fa43f1a1223bc5c73bbcd014fddf8880e514d2a6dcc456bcf18b537c01fb6911b092e6d9958bccd8e64e9f375ed7a1ab9 WHIRLPOOL 19f77946abf48cbdd3e7ea21fd009ca3cc5f607dfe0512a44b102847044bb1d5ae4b16f503f18b14ebd9ea115256e87af07409907ba2a65f6061e217a502a359

diff --git a/sys-libs/libcxx/libcxx-3.7.1.ebuild b/sys-libs/libcxx/libcxx-3.7.1.ebuild
new file mode 100644
index 0000000..92689d8
--- /dev/null
+++ b/sys-libs/libcxx/libcxx-3.7.1.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."
+}