PortSystem 1.0
PortGroup compiler_blacklist_versions 1.0
PortGroup active_variants 1.1
name libcxx
epoch 1
version 5.0.1
revision 4
categories lang
platforms darwin
license MIT NCSA
maintainers {jeremyhu @jeremyhu}
description libc++ is a new implementation of the C++ standard library with support for C++11 and portions of C++14.
long_description ${description} \
Because objects cannot be passed between different versions of the C++ runtime, this port must \
replace the host version in order to be used. On Snow Leopard and earlier, this is done \
automatically because there is no existing host version of this library. On Lion and later, \
users must build the port with +replacemnt_libcxx and install the root manually if they wish \
to replace the existing host implementation.
homepage https://libcxx.llvm.org/
master_sites https://releases.llvm.org/${version}/
dist_subdir llvm
use_xz yes
set libcxxabi_distname libcxxabi-${version}.src
set libcxx_distname libcxx-${version}.src
distfiles ${libcxxabi_distname}${extract.suffix} \
${libcxx_distname}${extract.suffix}
checksums libcxxabi-5.0.1.src.tar.xz \
rmd160 93b74a0644c1afd565938fba5e21b200b206c72a \
sha256 5a25152cb7f21e3c223ad36a1022faeb8a5ac27c9e75936a5ae2d3ac48f6e854 \
libcxx-5.0.1.src.tar.xz \
rmd160 1e5a22e62515382488f232039e31f0b12c08ca4f \
sha256 fa8f99dd2bde109daa3276d529851a3bce5718d46ce1c5d0806f46caa3e57c00
use_configure no
set roots_path ${prefix}/var/system_roots/
set root_name ${name}-${version}-${revision}
set libcxxabi_worksrcpath [file join ${workpath} ${libcxxabi_distname}]
set libcxx_worksrcpath [file join ${workpath} ${libcxx_distname}]
platform darwin {
if {${os.major} < 9} {
pre-fetch {
ui_error "${name} is not supported on Tiger or earlier."
error "unsupported platform"
}
}
if {${os.major} < 11} {
post-activate {
set dirs /
if {${os.subplatform} eq "macosx"} {
lappend dirs ${developer_dir}/SDKs/MacOSX[join [lrange [split ${macosx_version} .] 0 1] .].sdk
}
foreach d ${dirs} {
system -W ${d} "tar xzf ${roots_path}/${root_name}.tgz"
}
}
}
}
variant replacemnt_libcxx description {EXPERTS ONLY: Build a replacement libcxxabi and libcxx even if it is already part of the base OS.} {}
if {${os.major} < 11 || [variant_isset replacemnt_libcxx]} {
variant universal {}
default_variants +universal
if {${os.major} < 11} {
variant emulated_tls description {build libcxxabi and libcxx with support for emulated thread_local storage} {}
# only selected clang versions support emulated_tls, and the emulated_tls variant
# needs to be enabled to build libcxx with emulated_tls support
foreach ver {5.0 6.0 7.0} {
if {[file exists ${prefix}/bin/clang-mp-${ver}]} {
if {[active_variants clang-${ver} emulated_tls]} {
default_variants-append +emulated_tls
compiler.whitelist-prepend macports-clang-${ver}
}
}
}
}
compiler.blacklist *gcc* {clang < 500}
# clang 3.5 and newer are conditionally blacklisted to prevent dependency cycles
foreach ver {3.5 3.6 3.7 3.8 3.9 4.0 5.0 6.0 7.0 devel} {
if {![file exists ${prefix}/bin/clang-mp-${ver}]} {
compiler.blacklist-append macports-clang-${ver}
}
}
supported_archs i386 x86_64 ppc
if {[variant_isset universal] && [lsearch ${universal_archs} ppc] != -1} {
# http://trac.macports.org/wiki/LibcxxOnOlderSystems#Leopardppc
# older clang compilers produce unreliable ppc code
compiler.blacklist-append macports-clang-3.4
}
post-extract {
# delete cxa_noexception.cpp as we're not using the cmake build system
# cmake would choose either cxa_exceptions or cxa_noexceptions
# but the buildit script just builds every file in the src directory and you can't have both
delete ${libcxxabi_worksrcpath}/src/cxa_noexception.cpp
if {![variant_isset emulated_tls]} {
# cmake doesn't include this for darwin builds, so nuke it here as well
# however, this file is essential for emulated-tls to function
delete ${libcxxabi_worksrcpath}/src/cxa_thread_atexit.cpp
}
file mkdir ${workpath}/build
file copy ${filespath}/Makefile ${workpath}/build
}
patch.dir ${workpath}
patch.pre_args -p0
# patches for libc++abi buildit
patchfiles-append \
0001-libcxxabi-Update-buildit-script-to-read-EXTRA_LDFLAGS-from-the.patch \
0002-libcxxabi-Define-_LIBCPP_BUILDING_LIBRARY-during-build-to-supp.patch \
0003-libcxxabi-buildit-Use-undefined-dynamic_lookup-when-linking.patch \
0004-libcxxabi-buildit-add-nostdinc++.diff
if {[variant_isset emulated_tls]} {
# add emutls.c support for cxa_thread_atexit directly into libcxxabi
# these files were taken from clang-7.0's compiler-rt subproject
patchfiles-append \
0005-libcxxabi-add-emutls.patch \
0006-libcxxabi-buildit-build-emutls.patch \
0007-libcxxabi-include-expose-cxa-thread-atexit.patch \
0008-libcxxabi-cxa-thread-atexit-no-weak-atexit-impl.patch
}
# restore libc++ buildit and patches for libc++ buildit
patchfiles-append \
1001-Revert-Remove-the-buildit-and-testit-scripts-they-ha.patch \
1002-libcxx-buildit-build-fix-for-Leopard.patch \
1003-libcxx-buildit-Set-compatibility-version-to-RC_ProjectSourc.patch \
1004-libcxx-MacPorts-Use-LIBCXXABI_PATH-for-path-to-build-time-l.patch \
1005-libcxx-buildit-Fix-CFLAGS-for-Leopard-and-Snow-Leopard-to-i.patch
# patches for libc++ include files
patchfiles-append \
2001-Fix-local-and-iterator-when-building-with-Lion-and-n.patch \
2002-Fix-missing-long-long-math-prototypes-when-using-the.patch \
2003-implement-atomic-using-mutex-lock_guard-for-64b-ops-.patch \
2004-libcxx-includes-Fix-up-thread-constexpr-for-GCC-where-the-PPC-port-cant-do-longlong-constexpr.patch
post-patch {
system "chmod 755 ${libcxx_worksrcpath}/lib/buildit"
}
build.dir ${workpath}/build
if {[vercmp [macports_version] 2.5.99] >= 0} {
build.env-append \
CC=${configure.cc} \
CXX=${configure.cxx} \
RC_XBS=1 \
RC_ProjectSourceVersion=${version} \
"RC_CFLAGS=[get_canonical_archflags] -I${libcxxabi_worksrcpath}/include -I${libcxx_worksrcpath}/include ${configure.optflags}" \
TRIPLE=-apple-darwin${os.major}
} else {
build.env-append \
CC="${configure.cc}" \
CXX="${configure.cxx}" \
RC_XBS=1 \
RC_ProjectSourceVersion="${version}" \
RC_CFLAGS="[get_canonical_archflags] -I${libcxxabi_worksrcpath}/include -I${libcxx_worksrcpath}/include ${configure.optflags}" \
TRIPLE="-apple-darwin${os.major}"
}
build.args-append \
LIBCXXABI_PATH=${libcxxabi_worksrcpath} \
LIBCXX_PATH=${libcxx_worksrcpath} \
LIBCXXABI_DYLIB_PATH=${build.dir}/libc++abi.dylib
# We want to use the host's libc++ everywhere because we want to ensure
# that only *ONE* copy of this library is in any process's address space.
# On Snow Leopard and earlier, this port provides this library in /usr for
# binary compatibility with Lion and later.
#
# On newer OS version, this port does not install the content to /usr and
# just leaves it to expert users who may want to replace their system
# runtime.
destroot {
xinstall -m 755 -d ${destroot}${roots_path}/${root_name}/usr/lib
xinstall -m 755 ${libcxxabi_worksrcpath}/lib/libc++abi.dylib ${destroot}${roots_path}/${root_name}/usr/lib
xinstall -m 755 ${libcxx_worksrcpath}/lib/libc++.1.dylib ${destroot}${roots_path}/${root_name}/usr/lib
ln -s libc++.1.dylib ${destroot}${roots_path}/${root_name}/usr/lib/libc++.dylib
xinstall -m 755 -d ${destroot}${roots_path}/${root_name}/usr/include
xinstall -m 755 ${libcxxabi_worksrcpath}/include/__cxxabi_config.h ${destroot}${roots_path}/${root_name}/usr/include
xinstall -m 755 ${libcxxabi_worksrcpath}/include/cxxabi.h ${destroot}${roots_path}/${root_name}/usr/include
system -W ${destroot}${roots_path}/${root_name} "tar czf ../${root_name}.tgz ."
delete ${destroot}${roots_path}/${root_name}
}
} else {
supported_archs noarch
distfiles
build {}
destroot {
xinstall -d ${destroot}${prefix}/share/doc/${name}
system "echo ${name} is an empty port on this OS version because the functionality is already provided by the OS. > ${destroot}${prefix}/share/doc/${name}/README.txt"
}
}
livecheck.type none