1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
|
# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sys-libs/libcxx/libcxx-0.0_p20131222.ebuild,v 1.3 2014/06/18 20:50:24 mgorny Exp $
EAPI=5
ESVN_REPO_URI="http://llvm.org/svn/llvm-project/libcxx/trunk"
[ "${PV%9999}" != "${PV}" ] && SCM="subversion" || SCM=""
inherit ${SCM} flag-o-matic toolchain-funcs multilib multilib-minimal
DESCRIPTION="New implementation of the C++ standard library, targeting C++11"
HOMEPAGE="http://libcxx.llvm.org/"
if [ "${PV%9999}" = "${PV}" ] ; then
SRC_URI="mirror://gentoo/${P}.tar.xz"
else
SRC_URI=""
fi
LICENSE="|| ( UoI-NCSA MIT )"
SLOT="0"
if [ "${PV%9999}" = "${PV}" ] ; then
KEYWORDS="~amd64 ~x86 ~amd64-fbsd ~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."
}
|
GitWeb