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# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
inherit eutils toolchain-funcs
DESCRIPTION="Low Level Virtual Machine"
HOMEPAGE="http://llvm.org/"
SRC_URI="http://llvm.org/releases/${PV}/llvm-${PV}.tar.gz"
LICENSE="LLVM"
# most part of LLVM fall under the "University of Illinois Open Source License"
# which doesn't seem to exist in portage yet, so I call it 'LLVM' for now. it
# can be read from llvm/LICENSE.TXT in the source tarball.
# the directory llvm/runtime/GCCLibraries/libc contains a stripped down C
# library licensed under the LGPL 2.1 with some third party copyrights, see the
# two LICENCE* files in that directory. Those parts do *not* get built, so
# we omit LGPL in ${LICENCE}
SLOT="0"
KEYWORDS="~amd64 ~ppc ~x86"
IUSE="debug alltargets pic"
# 'jit' is not a flag anymore. at least on x86, disabling it saves nothing
# at all, so having it always enabled for platforms that support it is fine
# we're not mirrored, fetch from homepage
RESTRICT="mirror"
DEPEND="dev-lang/perl
>=sys-devel/make-3.79
>=sys-devel/flex-2.5.4
>=sys-devel/bison-1.28
>=sys-devel/gcc-3.0
"
RDEPEND="dev-lang/perl"
PDEPEND=""
# note that app-arch/pax is no longer a dependency
S="${WORKDIR}/llvm-${PV}"
pkg_setup() {
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`
for version in ${broken_gcc[@]}
do
if [ "$gcc_vers" = "$version" ]; then
elog "Your version of gcc is known to miscompile llvm"
elog "check http://www.llvm.org/docs/GettingStarted.html for \
possible solutions"
die "Your version of gcc is known to miscompile llvm"
fi
done
if use x86; then
for version in ${broken_gcc_x86[@]}
do
if [ "$gcc_vers" = "$version" ]; then
elog "Your version of gcc is known to miscompile llvm in x86 \
architectures"
elog "check http://www.llvm.org/docs/GettingStarted.html for \
possible solutions"
die "Your version of gcc is known to miscompile llvm"
fi
done
fi
if use amd64; then
for version in ${broken_gcc_amd64[@]}
do
if [ "$gcc_vers" = "$version" ]; then
elog "Your version of gcc is known to miscompile llvm in amd64 \
architectures"
elog "check http://www.llvm.org/docs/GettingStarted.html for \
possible solutions"
die "Your version of gcc is known to miscompile llvm"
fi
done
fi
broken_bison=( 1.85 1.875 )
for version in ${broken_bison[@]}
do
if [ $(bison --version | head -n1 | cut -f4 -d" ") = "$version" ]; then
elog "Your version of Bison is known not to work with llvm, please \
upgrade to a newer version"
die "Your version of Bison is known not to work with llvm"
fi
done
buggy_ld=( 2.16 2.17 )
for version in ${buggy_ld[@]}
do
if [ $(ld --version | head -n1 | cut -f5 -d" ") = "$version" ]; then
ewarn "Your version of Binutils is known to be problematic with \
llvm -> llvm team recommends upgrading"
fi
done
}
src_unpack() {
unpack ${A}
cd "${S}"
# 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 := $(DESTDIR)/etc/llvm,' \
-i Makefile.config.in || die "sed failed"
# fix gccld and gccas, which would otherwise point to the build directory
einfo "Fixing gccld and gccas"
sed -e 's,^TOOLDIR.*,TOOLDIR=/usr/bin,' \
-i tools/gccld/gccld.sh tools/gccas/gccas.sh || die "sed failed"
# all binaries get rpath'd to a dir in the temporary tree that doesn't
# contain libraries anyway; can safely remove those to avoid QA warnings
# (the exception would be if we build shared libraries, which we don't)
einfo "Fixing rpath"
sed -e 's,-rpath \$(ToolDir),,g' -i Makefile.rules || die "sed failed"
epatch "${FILESDIR}"/llvm-2.3-dont-build-hello.patch
epatch "${FILESDIR}"/llvm-2.3-disable-strip.patch
}
src_compile() {
local CONF_FLAGS=""
if use debug; then
CONF_FLAGS="${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="${CONF_FLAGS} --enable-targets=host-only"
fi
if use amd64 || use pic; then
CONF_FLAGS="${CONF_FLAGS} --enable-pic"
fi
# a few minor things would be built a bit differently depending on whether
# llvm-gcc is already present on the system or not. let's avoid that by
# not letting it find llvm-gcc. llvm-gcc isn't required for anything
# anyway. this dummy path will get spread to a few places, but none where
# it really matters.
CONF_FLAGS="${CONF_FLAGS} --with-llvmgccdir=/dev/null"
econf ${CONF_FLAGS} || die "econf failed"
emake || die "emake failed"
}
src_install()
{
make DESTDIR="${D}" install || die "make install failed"
# for some reason, LLVM creates a few .dir files. remove them
find "${D}" -name .dir -print0 | xargs -r0 rm
# tblgen does not get installed and wouldn't be very useful anyway
# so remove their man pages. llvmgcc.1 and llvmgxx.1 are present here for
# unknown reasons. llvm-gcc will install proper man pages for itself, so
# remove them here
einfo "Removing unnecessary man pages"
rm "${D}"/usr/share/man/man1/{tblgen,llvmgcc,llvmgxx}.1
}
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