Generalize GCC version check, which fixes bug #417913 and bug #418141

(Portage version: 2.1.10.49/cvs/Linux x86_64)

3 files changed, 234 insertions, 1 deletions

diff --git a/sys-devel/clang/ChangeLog b/sys-devel/clang/ChangeLog
index f69260f9960b..ef49ef765adc 100644
--- a/sys-devel/clang/ChangeLog
+++ b/sys-devel/clang/ChangeLog
@@ -1,6 +1,12 @@
 # ChangeLog for sys-devel/clang
 # Copyright 1999-2012 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/sys-devel/clang/ChangeLog,v 1.68 2012/06/05 01:33:18 ryao Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-devel/clang/ChangeLog,v 1.69 2012/06/05 02:03:46 ryao Exp $
+
+*clang-3.1-r3 (05 Jun 2012)
+
+  05 Jun 2012; Richard Yao <ryao@gentoo.org> +clang-3.1-r3.ebuild,
+  +files/clang-3.1-gentoo-runtime-gcc-detection-v2.patch:
+  Generalize GCC version check, which fixes bug #417913 and bug #418141
 
   05 Jun 2012; Richard Yao <ryao@gentoo.org> metadata.xml:
   Add self to maintainer list
diff --git a/sys-devel/clang/clang-3.1-r3.ebuild b/sys-devel/clang/clang-3.1-r3.ebuild
new file mode 100644
index 000000000000..33daa251a623
--- /dev/null
+++ b/sys-devel/clang/clang-3.1-r3.ebuild
@@ -0,0 +1,199 @@
+# Copyright 1999-2012 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-devel/clang/clang-3.1-r3.ebuild,v 1.1 2012/06/05 02:03:46 ryao Exp $
+
+EAPI=4
+
+RESTRICT_PYTHON_ABIS="3.*"
+SUPPORT_PYTHON_ABIS="1"
+
+inherit eutils multilib python
+
+DESCRIPTION="C language family frontend for LLVM"
+HOMEPAGE="http://clang.llvm.org/"
+# Fetching LLVM as well: see http://llvm.org/bugs/show_bug.cgi?id=4840
+SRC_URI="http://llvm.org/releases/${PV}/llvm-${PV}.src.tar.gz
+	http://llvm.org/releases/${PV}/compiler-rt-${PV}.src.tar.gz
+	http://llvm.org/releases/${PV}/${P}.src.tar.gz"
+
+LICENSE="UoI-NCSA"
+SLOT="0"
+KEYWORDS="~amd64 ~arm ~x86 ~amd64-fbsd ~amd64-linux ~x86-linux ~ppc-macos"
+IUSE="debug kernel_FreeBSD multitarget +static-analyzer test"
+
+DEPEND="static-analyzer? ( dev-lang/perl )"
+RDEPEND="~sys-devel/llvm-${PV}[multitarget=]"
+
+S=${WORKDIR}/llvm-${PV}.src
+
+src_prepare() {
+	mv "${WORKDIR}"/clang-${PV}.src "${S}"/tools/clang \
+		|| die "clang source directory move failed"
+	mv "${WORKDIR}"/compiler-rt-${PV}.src "${S}"/projects/compiler-rt \
+		|| die "compiler-rt source directory move failed"
+
+	# Same as llvm doc patches
+	epatch "${FILESDIR}"/${PN}-2.7-fixdoc.patch
+
+	# multilib-strict
+	sed -e "/PROJ_headers/s#lib/clang#$(get_libdir)/clang#" \
+		-i tools/clang/lib/Headers/Makefile \
+		|| die "clang Makefile failed"
+	sed -e "/PROJ_resources/s#lib/clang#$(get_libdir)/clang#" \
+		-i tools/clang/runtime/compiler-rt/Makefile \
+		|| die "compiler-rt Makefile failed"
+	# fix the static analyzer for in-tree install
+	sed -e 's/import ScanView/from clang \0/'  \
+		-i tools/clang/tools/scan-view/scan-view \
+		|| die "scan-view sed failed"
+	sed -e "/scanview.css\|sorttable.js/s#\$RealBin#${EPREFIX}/usr/share/${PN}#" \
+		-i tools/clang/tools/scan-build/scan-build \
+		|| die "scan-build sed failed"
+	# Set correct path for gold plugin
+	sed -e "/LLVMgold.so/s#lib/#$(get_libdir)/llvm/#" \
+		-i  tools/clang/lib/Driver/Tools.cpp \
+		|| die "gold plugin path sed failed"
+	# Specify python version
+	python_convert_shebangs 2 tools/clang/tools/scan-view/scan-view
+	python_convert_shebangs -r 2 test/Scripts
+	python_convert_shebangs 2 projects/compiler-rt/lib/asan/scripts/asan_symbolize.py
+
+	# From llvm src_prepare
+	einfo "Fixing install dirs"
+	sed -e 's,^PROJ_docsdir.*,PROJ_docsdir := $(PROJ_prefix)/share/doc/'${PF}, \
+		-e 's,^PROJ_etcdir.*,PROJ_etcdir := '"${EPREFIX}"'/etc/llvm,' \
+		-e 's,^PROJ_libdir.*,PROJ_libdir := $(PROJ_prefix)/'$(get_libdir)/llvm, \
+		-i Makefile.config.in || die "Makefile.config sed failed"
+
+	einfo "Fixing rpath and CFLAGS"
+	sed -e 's,\$(RPATH) -Wl\,\$(\(ToolDir\|LibDir\)),$(RPATH) -Wl\,'"${EPREFIX}"/usr/$(get_libdir)/llvm, \
+		-e '/OmitFramePointer/s/-fomit-frame-pointer//' \
+		-i Makefile.rules || die "rpath sed failed"
+
+	# Use system llc (from llvm ebuild) for tests
+	sed -e "/^llc_props =/s/os.path.join(llvm_tools_dir, 'llc')/'llc'/" \
+		-i tools/clang/test/lit.cfg  || die "test path sed failed"
+
+	# Automatically select active system GCC's libraries, bugs #406163, #417913, #418141
+	epatch "${FILESDIR}"/${P}-gentoo-runtime-gcc-detection-v2.patch
+
+	# Fix search paths on FreeBSD, bug #409269
+	epatch "${FILESDIR}"/${P}-gentoo-freebsd-fix-lib-path.patch
+
+	# Fix regression caused by removal of USE=system-cxx-headers, bug #417541
+	epatch "${FILESDIR}"/${P}-gentoo-freebsd-fix-cxx-paths.patch
+
+	# Fix regression that prevents Clang from building itself on Linux, bug #417537
+	epatch "${FILESDIR}"/${P}-gentoo-linux-fix-cxx-include.patch
+
+	# Increase recursion limit, bug #417545, upstream r155737
+	epatch "${FILESDIR}"/${P}-increase-parser-recursion-limit.patch
+
+	# User patches
+	epatch_user
+}
+
+src_configure() {
+	local CONF_FLAGS="--enable-shared
+		--with-optimize-option=
+		$(use_enable !debug optimized)
+		$(use_enable debug assertions)
+		$(use_enable debug expensive-checks)"
+
+	# Setup the search path to include the Prefix includes
+	if use prefix ; then
+		CONF_FLAGS="${CONF_FLAGS} \
+			--with-c-include-dirs=${EPREFIX}/usr/include:/usr/include"
+	fi
+
+	if use multitarget; then
+		CONF_FLAGS="${CONF_FLAGS} --enable-targets=all"
+	else
+		CONF_FLAGS="${CONF_FLAGS} --enable-targets=host-only"
+	fi
+
+	if use amd64; then
+		CONF_FLAGS="${CONF_FLAGS} --enable-pic"
+	fi
+
+	econf ${CONF_FLAGS}
+}
+
+src_compile() {
+	emake VERBOSE=1 KEEP_SYMBOLS=1 REQUIRES_RTTI=1 clang-only
+}
+
+src_test() {
+	cd "${S}"/test || die "cd failed"
+	emake site.exp
+
+	cd "${S}"/tools/clang || die "cd clang failed"
+
+	echo ">>> Test phase [test]: ${CATEGORY}/${PF}"
+
+	testing() {
+		if ! emake -j1 VERBOSE=1 test; then
+			has test $FEATURES && die "Make test failed. See above for details."
+			has test $FEATURES || eerror "Make test failed. See above for details."
+		fi
+	}
+	python_execute_function testing
+}
+
+src_install() {
+	cd "${S}"/tools/clang || die "cd clang failed"
+	emake KEEP_SYMBOLS=1 DESTDIR="${D}" install
+
+	if use static-analyzer ; then
+		dobin tools/scan-build/ccc-analyzer
+		dosym ccc-analyzer /usr/bin/c++-analyzer
+		dobin tools/scan-build/scan-build
+
+		insinto /usr/share/${PN}
+		doins tools/scan-build/scanview.css
+		doins tools/scan-build/sorttable.js
+
+		cd tools/scan-view || die "cd scan-view failed"
+		dobin scan-view
+		install-scan-view() {
+			insinto "$(python_get_sitedir)"/clang
+			doins Reporter.py Resources ScanView.py startfile.py
+			touch "${ED}"/"$(python_get_sitedir)"/clang/__init__.py
+		}
+		python_execute_function install-scan-view
+	fi
+
+	# Fix install_names on Darwin.  The build system is too complicated
+	# to just fix this, so we correct it post-install
+	if [[ ${CHOST} == *-darwin* ]] ; then
+		for lib in libclang.dylib ; do
+			ebegin "fixing install_name of $lib"
+			install_name_tool -id "${EPREFIX}"/usr/lib/llvm/${lib} \
+				"${ED}"/usr/lib/llvm/${lib}
+			eend $?
+		done
+		for f in usr/bin/{c-index-test,clang} usr/lib/llvm/libclang.dylib ; do
+			ebegin "fixing references in ${f##*/}"
+			install_name_tool \
+				-change "@rpath/libclang.dylib" \
+					"${EPREFIX}"/usr/lib/llvm/libclang.dylib \
+				-change "@executable_path/../lib/libLLVM-${PV}.dylib" \
+					"${EPREFIX}"/usr/lib/llvm/libLLVM-${PV}.dylib \
+				-change "${S}"/Release/lib/libclang.dylib \
+					"${EPREFIX}"/usr/lib/llvm/libclang.dylib \
+				"${ED}"/$f
+			eend $?
+		done
+	fi
+
+	# Remove unnecessary headers on FreeBSD, bug #417171
+	use kernel_FreeBSD && rm "${ED}"usr/$(get_libdir)/clang/${PV}/include/{arm_neon,std,float,iso,limits,tgmath,varargs}*.h
+}
+
+pkg_postinst() {
+	python_mod_optimize clang
+}
+
+pkg_postrm() {
+	python_mod_cleanup clang
+}
diff --git a/sys-devel/clang/files/clang-3.1-gentoo-runtime-gcc-detection-v2.patch b/sys-devel/clang/files/clang-3.1-gentoo-runtime-gcc-detection-v2.patch
new file mode 100644
index 000000000000..47d554357bd8
--- /dev/null
+++ b/sys-devel/clang/files/clang-3.1-gentoo-runtime-gcc-detection-v2.patch
@@ -0,0 +1,28 @@
+diff -upNr a/llvm-3.1.src/tools/clang/lib/Driver/ToolChains.cpp b/llvm-3.1.src/tools/clang/lib/Driver/ToolChains.cpp
+--- a/llvm-3.1.src/tools/clang/lib/Driver/ToolChains.cpp	2012-05-24 03:32:31.593191000 -0400
++++ b/llvm-3.1.src/tools/clang/lib/Driver/ToolChains.cpp	2012-05-24 03:38:31.733163513 -0400
+@@ -1145,6 +1145,24 @@ Generic_GCC::GCCInstallationDetector::GC
+     Prefixes.push_back(D.InstalledDir + "/..");
+   }
+ 
++    llvm::OwningPtr<llvm::MemoryBuffer> File;
++  for (unsigned k = 0, ke = CandidateTripleAliases.size(); k < ke; ++k) {
++    if (!llvm::MemoryBuffer::getFile(D.SysRoot + "/etc/env.d/gcc/config-" + CandidateTripleAliases[k].str(), File))
++    {
++      bool Exists;
++      const std::string VersionText = File.get()->getBuffer().rsplit('-').second.substr(0,5).str();
++      const std::string GentooPath = D.SysRoot + "/usr/lib/gcc/" + CandidateTripleAliases[k].str() + "/" + VersionText;
++      if (!llvm::sys::fs::exists(GentooPath + "/crtbegin.o", Exists) && Exists)
++      {
++        Version = GCCVersion::Parse(VersionText);
++        GCCInstallPath = GentooPath;
++        GCCParentLibPath = GCCInstallPath + "/../../..";
++        IsValid = true;
++        return;
++      }
++    }
++  }
++
+   // Loop over the various components which exist and select the best GCC
+   // installation available. GCC installs are ranked by version number.
+   Version = GCCVersion::Parse("0.0.0");