--- /dev/null
+# Copyright 1999-2010 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-devel/llvm/llvm-2.6-r2.ebuild,v 1.1 2010/04/26 09:38:19 voyageur Exp $
+
+EAPI="2"
+inherit eutils multilib toolchain-funcs
+
+DESCRIPTION="Low Level Virtual Machine"
+HOMEPAGE="http://llvm.org/"
+SRC_URI="http://llvm.org/releases/${PV}/${P}.tar.gz"
+
+LICENSE="UoI-NCSA"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc ~x86"
+IUSE="alltargets debug +libffi llvm-gcc ocaml test udis86"
+
+DEPEND="dev-lang/perl
+ >=sys-devel/make-3.79
+ >=sys-devel/flex-2.5.4
+ >=sys-devel/bison-1.28
+ !~sys-devel/bison-1.85
+ !~sys-devel/bison-1.875
+ >=sys-devel/gcc-3.0
+ >=sys-devel/binutils-2.18
+ libffi? ( virtual/libffi )
+ llvm-gcc? ( sys-devel/llvm-gcc )
+ ocaml? ( dev-lang/ocaml )
+ test? ( dev-util/dejagnu )
+ udis86? ( dev-libs/udis86 )"
+RDEPEND="dev-lang/perl"
+
+S=${WORKDIR}/${PN}-${PV/_pre*}
+
+pkg_setup() {
+ # need to check if the active compiler is ok
+
+ broken_gcc=" 3.2.2 3.2.3 3.3.2 4.1.1 "
+ broken_gcc_x86=" 3.4.0 3.4.2 "
+ broken_gcc_amd64=" 3.4.6 "
+
+ gcc_vers=$(gcc-fullversion)
+
+ if [[ ${broken_gcc} == *" ${version} "* ]] ; then
+ elog "Your version of gcc is known to miscompile llvm."
+ elog "Check http://www.llvm.org/docs/GettingStarted.html for"
+ elog "possible solutions."
+ die "Your currently active version of gcc is known to miscompile llvm"
+ fi
+
+ if [[ ${CHOST} == i*86-* && ${broken_gcc_x86} == *" ${version} "* ]] ; then
+ elog "Your version of gcc is known to miscompile llvm on x86"
+ elog "architectures. Check"
+ elog "http://www.llvm.org/docs/GettingStarted.html for possible"
+ elog "solutions."
+ die "Your currently active version of gcc is known to miscompile llvm"
+ fi
+
+ if [[ ${CHOST} == x86_64-* && ${broken_gcc_amd64} == *" ${version} "* ]];
+ then
+ elog "Your version of gcc is known to miscompile llvm in amd64"
+ elog "architectures. Check"
+ elog "http://www.llvm.org/docs/GettingStarted.html for possible"
+ elog "solutions."
+ die "Your currently active version of gcc is known to miscompile llvm"
+ fi
+}
+
+src_prepare() {
+ # unfortunately ./configure won't listen to --mandir and the-like, so take
+ # care of this.
+ einfo "Fixing install dirs"
+ sed -e 's,^PROJ_docsdir.*,PROJ_docsdir := $(DESTDIR)$(PROJ_prefix)/share/doc/'${PF}, \
+ -e 's,^PROJ_etcdir.*,PROJ_etcdir := $(DESTDIR)/etc/llvm,' \
+ -e 's,^PROJ_libdir.*,PROJ_libdir := $(DESTDIR)/usr/'$(get_libdir), \
+ -i Makefile.config.in || die "sed failed"
+
+ # this points by default to the build directory
+ einfo "Fixing gccld and gccas"
+ sed -e 's,^TOOLDIR.*,TOOLDIR=/usr/bin,' \
+ -i tools/gccld/gccld.sh tools/gccas/gccas.sh || die "sed failed"
+
+ einfo "Fixing rpath"
+ sed -e 's/\$(RPATH) -Wl,\$(\(ToolDir\|LibDir\))//g' -i Makefile.rules || die "sed failed"
+
+ # Fix docs installation
+ sed -e '/^NO_INSTALL_MANS/s/$/$(DST_MAN_DIR)tblgen.1 $(DST_MAN_DIR)llvmgcc.1 $(DST_MAN_DIR)llvmgxx.1/' \
+ -i docs/CommandGuide/Makefile || die "manpages sed failed"
+ epatch "${FILESDIR}"/${PN}-2.6-nodoctargz.patch
+ epatch "${FILESDIR}"/${PN}-2.6-commandguide-nops.patch
+
+ # Buggy test, http://llvm.org/bugs/show_bug.cgi?id=5047
+ rm test/DebugInfo/2009-01-15-dbg_declare.ll
+
+ # Do not force -O3 -fomit-frame-pointer on users
+ epatch "${FILESDIR}"/${PN}-2.6-cflags.patch
+}
+
+src_configure() {
+ local CONF_FLAGS=""
+
+ if use debug; then
+ CONF_FLAGS="${CONF_FLAGS} --disable-optimized"
+ einfo "Note: Compiling LLVM in debug mode will create huge and slow binaries"
+ # ...and you probably shouldn't use tmpfs, unless it can hold 900MB
+ else
+ CONF_FLAGS="${CONF_FLAGS} \
+ --enable-optimized \
+ --disable-assertions \
+ --disable-expensive-checks"
+ fi
+
+ if use alltargets; then
+ CONF_FLAGS="${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
+
+ # things would be built differently depending on whether llvm-gcc is
+ # used or not.
+ local LLVM_GCC_DIR=/dev/null
+ local LLVM_GCC_DRIVER=nope ; local LLVM_GPP_DRIVER=nope
+ if use llvm-gcc ; then
+ if has_version sys-devel/llvm-gcc; then
+ LLVM_GCC_DIR=$(ls -d ${ROOT}/usr/$(get_libdir)/llvm-gcc* 2> /dev/null)
+ LLVM_GCC_DRIVER=$(find ${LLVM_GCC_DIR} -name 'llvm*-gcc' 2> /dev/null)
+ if [[ -z ${LLVM_GCC_DRIVER} ]] ; then
+ die "failed to find installed llvm-gcc, LLVM_GCC_DIR=${LLVM_GCC_DIR}"
+ fi
+ einfo "Using $LLVM_GCC_DRIVER"
+ LLVM_GPP_DRIVER=${LLVM_GCC_DRIVER/%-gcc/-g++}
+ else
+ eerror "llvm-gcc USE flag enabled, but sys-devel/llvm-gcc was not found"
+ eerror "Building with standard gcc, re-merge this package after installing"
+ eerror "llvm-gcc to build with it"
+ eerror "This is normal behavior on first LLVM merge"
+ fi
+ fi
+
+ CONF_FLAGS="${CONF_FLAGS} \
+ --with-llvmgccdir=${LLVM_GCC_DIR} \
+ --with-llvmgcc=${LLVM_GCC_DRIVER} \
+ --with-llvmgxx=${LLVM_GPP_DRIVER}"
+
+ if use ocaml; then
+ CONF_FLAGS="${CONF_FLAGS} --enable-bindings=ocaml"
+ else
+ CONF_FLAGS="${CONF_FLAGS} --enable-bindings=none"
+ fi
+
+ CONF_FLAGS="${CONF_FLAGS} $(use_enable libffi)"
+ CONF_FLAGS="${CONF_FLAGS} $(use_with udis86)"
+ econf ${CONF_FLAGS} || die "econf failed"
+}
+
+src_compile() {
+ emake VERBOSE=1 KEEP_SYMBOLS=1 || die "emake failed"
+}
+
+src_install() {
+ emake KEEP_SYMBOLS=1 DESTDIR="${D}" install || die "install failed"
+}
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