sys-devel/llvm: Minimize 3.6 to be Darwin Prefix-compat only

1 files changed, 279 insertions, 0 deletions

diff --git a/sys-devel/llvm/llvm-3.6.2-r100.ebuild b/sys-devel/llvm/llvm-3.6.2-r100.ebuild
new file mode 100644
index 000000000000..89a1cabd9bb9
--- /dev/null
+++ b/sys-devel/llvm/llvm-3.6.2-r100.ebuild
@@ -0,0 +1,279 @@
+# Copyright 1999-2017 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=5
+
+PYTHON_COMPAT=( python2_7 )
+inherit eutils check-reqs flag-o-matic multilib pax-utils prefix \
+	python-any-r1 toolchain-funcs
+
+DESCRIPTION="Low Level Virtual Machine"
+HOMEPAGE="http://llvm.org/"
+SRC_URI="http://llvm.org/releases/${PV}/${P}.src.tar.xz
+	clang? ( http://llvm.org/releases/${PV}/compiler-rt-${PV}.src.tar.xz
+		http://llvm.org/releases/${PV}/cfe-${PV}.src.tar.xz )
+	https://dev.gentoo.org/~voyageur/distfiles/${PN}-3.6.1-manpages.tar.bz2"
+
+# Additional licenses:
+# 1. OpenBSD regex: Henry Spencer's license ('rc' in Gentoo) + BSD.
+# 2. ARM backend: LLVM Software Grant by ARM.
+# 3. MD5 code: public-domain.
+# 4. autoconf (not installed): some undefined M.I.T. license.
+# 5. Tests (not installed):
+#  a. gtest: BSD.
+#  b. YAML tests: MIT.
+
+LICENSE="UoI-NCSA rc BSD public-domain"
+SLOT="0/3.6"
+KEYWORDS="~ppc-macos ~x64-macos ~x86-macos"
+IUSE="clang +libffi"
+
+COMMON_DEPEND="
+	sys-libs/zlib:0=
+	libffi? ( >=virtual/libffi-3.0.13-r1:0= )"
+# configparser-3.2 breaks the build (3.3 or none at all are fine)
+DEPEND="${COMMON_DEPEND}
+	app-arch/xz-utils
+	dev-lang/perl
+	>=sys-devel/make-3.81
+	>=sys-devel/flex-2.5.4
+	>=sys-devel/bison-1.875d
+	|| ( >=sys-devel/gcc-apple-4.2.1 >=sys-devel/llvm-3.3 )
+	>=sys-devel/binutils-apple-5.1
+	libffi? ( virtual/pkgconfig )
+	!!<dev-python/configparser-3.3.0.2
+	${PYTHON_DEPS}"
+RDEPEND="${COMMON_DEPEND}
+	clang? ( !<=sys-devel/clang-${PV}-r99
+		!>=sys-devel/clang-9999 )"
+PDEPEND="clang? ( =sys-devel/clang-${PV}-r100 )"
+
+S=${WORKDIR}/${P}.src
+
+check_space() {
+	# in megs
+	# !clang !debug !multitarget -O2       400
+	# !clang !debug  multitarget -O2       550
+	#  clang !debug !multitarget -O2       950
+	#  clang !debug  multitarget -O2      1200
+	# !clang  debug  multitarget -O2      5G
+	#  clang !debug  multitarget -O0 -g  12G
+	#  clang  debug  multitarget -O2     16G
+	#  clang  debug  multitarget -O0 -g  14G
+
+	local build_size=550
+	use clang && build_size=1200
+
+	if is-flagq '-g?(gdb)?([1-9])'; then
+		ewarn "The C++ compiler -g option is known to increase the size of the package"
+		ewarn "considerably. If you run out of space, please consider removing it."
+		ewarn
+
+		(( build_size *= 10 ))
+	fi
+
+	local CHECKREQS_DISK_BUILD=${build_size}M
+	check-reqs_pkg_pretend
+
+	if [[ ${MERGE_TYPE} != binary ]]; then
+		echo 'int main() {return 0;}' > "${T}"/test.cxx || die
+		ebegin "Trying to build a C++11 test program"
+		if ! $(tc-getCXX) -std=c++11 -o /dev/null "${T}"/test.cxx; then
+			eerror "LLVM-${PV} requires C++11-capable C++ compiler. Your current compiler"
+			eerror "does not seem to support -std=c++11 option. Please upgrade your compiler"
+			eerror "to gcc-4.7 or an equivalent version supporting C++11."
+			die "Currently active compiler does not support -std=c++11"
+		fi
+		eend ${?}
+	fi
+}
+
+pkg_pretend() {
+	check_space
+}
+
+pkg_setup() {
+	check_space
+}
+
+src_unpack() {
+	default
+
+	rm -f "${S}"/tools/clang "${S}"/projects/compiler-rt \
+		|| die "symlinks removal failed"
+
+	if use clang; then
+		mv "${WORKDIR}"/cfe-${PV/_}.src "${S}"/tools/clang \
+			|| die "clang source directory move failed"
+		mv "${WORKDIR}"/compiler-rt-${PV/_}.src "${S}"/projects/compiler-rt \
+			|| die "compiler-rt source directory move failed"
+	fi
+}
+
+src_prepare() {
+	epatch "${FILESDIR}"/3.6.2/nodoctargz.patch
+	epatch "${FILESDIR}"/3.6.2/gcc-4.9.patch
+	epatch "${FILESDIR}"/3.6.2/gentoo-install.patch
+
+	if use clang; then
+		# Automatically select active system GCC's libraries, bugs #406163 and #417913
+		epatch "${FILESDIR}"/3.9.0/clang/gentoo-runtime-gcc-detection-v3.patch
+
+		epatch "${FILESDIR}"/3.7.1/clang/gentoo-install.patch
+		epatch "${FILESDIR}"/3.9.1/clang/darwin_prefix-include-paths.patch
+		eprefixify tools/clang/lib/Frontend/InitHeaderSearch.cpp
+
+		# Fix build fails with using gcc-4.9 on Gentoo/FreeBSD, bug #548444
+		epatch "${FILESDIR}"/3.6.2/clang/fbsd-gcc49.patch
+	fi
+
+	if use prefix && use clang; then
+		sed -i -e "/^CFLAGS /s@-Werror@-I${EPREFIX}/usr/include@" \
+			projects/compiler-rt/make/platform/clang_*.mk || die
+	fi
+
+	# disable use of SDK on OSX, bug #568758
+	sed -i -e 's/xcrun/false/' utils/lit/lit/util.py || die
+
+	local sub_files=(
+		Makefile.config.in
+		Makefile.rules
+		tools/llvm-config/llvm-config.cpp
+	)
+	use clang && sub_files+=(
+		tools/clang/lib/Driver/Tools.cpp
+		tools/clang/tools/scan-build/scan-build
+	)
+
+	# unfortunately ./configure won't listen to --mandir and the-like, so take
+	# care of this.
+	# note: we're setting the main libdir intentionally.
+	# where per-ABI is appropriate, we use $(GENTOO_LIBDIR) make.
+	einfo "Fixing install dirs"
+	sed -e "s,@libdir@,$(get_libdir),g" \
+		-e "s,@PF@,${PF},g" \
+		-e "s,@EPREFIX@,${EPREFIX},g" \
+		-i "${sub_files[@]}" \
+		|| die "install paths sed failed"
+
+	if use clang; then
+		# constantly fails for a long time, likely due to our patches
+		rm tools/clang/test/Driver/cross-linux.c || die
+	fi
+
+	# User patches
+	epatch_user
+
+	python_setup
+}
+
+src_configure() {
+	# disable timestamps since they confuse ccache
+	local conf_flags=(
+		--disable-timestamps
+		--enable-keep-symbols
+		--enable-shared
+		--with-optimize-option=
+		--enable-optimized
+		--disable-assertions
+		--disable-expensive-checks
+		--disable-libedit
+		--disable-terminfo
+		$(use_enable libffi)
+
+		--enable-bindings=none
+		--enable-targets=host
+
+		ac_cv_prog_XML2CONFIG=""
+	)
+
+	if use libffi; then
+		local CPPFLAGS=${CPPFLAGS}
+		append-cppflags "$($(tc-getPKG_CONFIG) --cflags libffi)"
+	fi
+
+	# Enable large file support, bug #550708
+	append-lfs-flags
+	# llvm prefers clang over gcc, so we may need to force that
+	tc-export CC CXX
+
+	ECONF_SOURCE=${S} \
+	econf "${conf_flags[@]}"
+}
+
+src_compile() {
+	LLVM_MAKEARGS=(
+		VERBOSE=1
+		REQUIRES_RTTI=1
+		GENTOO_LIBDIR=$(get_libdir)
+	)
+
+	emake "${LLVM_MAKEARGS[@]}"
+
+	pax-mark m Release/bin/llvm-rtdyld
+	pax-mark m Release/bin/lli
+	pax-mark m Release/bin/lli-child-target
+}
+
+src_install() {
+	emake "${LLVM_MAKEARGS[@]}" DESTDIR="${D}" install
+
+	if ! use clang; then
+		rm "${WORKDIR}"/${PN}-3.6.1-manpages/clang.1 || die
+	else
+		for tool in clang{,++} ; do
+			dosym ${tool} /usr/bin/${CHOST}-${tool}
+		done
+	fi
+	doman "${WORKDIR}"/${PN}-3.6.1-manpages/*.1
+
+	# Fix install_names on Darwin.  The build system is too complicated
+	# to just fix this, so we correct it post-install
+	local lib= f= odylib= ndylib= libpv=${PV}
+	if [[ ${CHOST} == *-darwin* ]] ; then
+		eval $(grep PACKAGE_VERSION= configure)
+		[[ -n ${PACKAGE_VERSION} ]] && libpv=${PACKAGE_VERSION}
+		libpvminor=${libpv%.[0-9]*}
+		for lib in lib{EnhancedDisassembly,LLVM-${libpv},LTO,profile_rt,clang}.dylib LLVMHello.dylib clang/${libpv}/lib/darwin/libclang_rt.asan_{osx,iossim}_dynamic.dylib; do
+			# libEnhancedDisassembly is Darwin10 only, so non-fatal
+			# + omit clang libs if not enabled
+			[[ -f ${ED}/usr/lib/${lib} ]] || continue
+
+			ebegin "fixing install_name of $lib"
+			install_name_tool \
+				-id "${EPREFIX}"/usr/lib/${lib} \
+				"${ED}"/usr/lib/${lib}
+			eend $?
+		done
+		for f in "${ED}"/usr/bin/* "${ED}"/usr/lib/lib*.dylib "${ED}"/usr/lib/clang/${libpv}/lib/darwin/*.dylib ; do
+			# omit clang libs if not enabled
+			[[ -f "${f}" ]] || continue
+
+			scanmacho -BF'%n#f' "${f}" | tr ',' '\n' | \
+			while read odylib ; do
+				ndylib=
+				case ${odylib} in
+					*/libclang.dylib)
+						ndylib="${EPREFIX}"/usr/lib/libclang.dylib
+						;;
+					*/libLLVM-${libpv}.dylib)
+						ndylib="${EPREFIX}"/usr/lib/libLLVM-${libpv}.dylib
+						;;
+					*/libLLVM-${libpvminor}.dylib)
+						ndylib="${EPREFIX}"/usr/lib/libLLVM-${libpvminor}.dylib
+						;;
+					*/libLTO.dylib)
+						ndylib="${EPREFIX}"/usr/lib/libLTO.dylib
+						;;
+				esac
+				if [[ -n ${ndylib} ]] ; then
+					ebegin "fixing install_name reference to ${odylib} of ${f##*/}"
+					install_name_tool \
+						-change "${odylib}" "${ndylib}" \
+						"${f}"
+					eend $?
+				fi
+			done
+		done
+	fi
+}