llvm base ebuild, sys-devel/llvm-2.5-r1.ebuild

llvm-2.5-r1.ebuild (text/plain), 5.71 KB, created by mehrunes on 2009-08-18 11:49:08 UTC

# Copyright 1999-2009 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: 
# ebuild submitted by gentoo user mehrunes 18 aug 2009

inherit eutils toolchain-funcs 

DESCRIPTION="Low Level Virtual Machine"
HOMEPAGE="http://llvm.org/"
SRC_URI="http://llvm.org/releases/$PV/$PN-$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 pic bootstrap alltargets"
# '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
  >=sys-devel/binutils-2.18
        "
RDEPEND="dev-lang/perl"
PDEPEND=""

S="$WORKDIR/$PN-$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

}

src_compile() {
	# 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
	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

	# things would be built differently depending on whether llvm-gcc is already 
 # present on the system or not. When not bootstapping we make sure that no 
 # llvm-gcc found
 LLVM_GCC_DIR=/dev/null ; LLVM_GCC_DRIVER=nope
 use bootstrap && {
  # when bootstappin, make sure configure will find installed llvm-gcc
  [ -z "$LLVM_GCC_PREFIX" ] && 
   LLVM_GCC_PREFIX=/usr/lib/llvm-gcc/$(ls /usr/lib/llvm-gcc|head -1)
  [ -z $(ls $LLVM_GCC_PREFIX/bin/*-gcc) ] && 
   die "failed to find installed llvm-gcc, LLVM_GCC_PREFIX=$LLVM_GCC_PREFIX"
  LLVM_GCC_DRIVER=$( ls $LLVM_GCC_DIR/bin/*-gcc | basename )
  einfo "using $LLVM_GCC_DRIVER residing in $LLVM_GCC_DIR"
 }
	CONF_FLAGS="${CONF_FLAGS} \
  --with-llvmgccdir=$LLVM_GCC_DIR --with-llvmgcc=$LLVM_GCC_DRIVER"

	econf ${CONF_FLAGS} || die "econf failed"
	emake || die "emake failed"
}

src_install() {
	make DESTDIR="$D" install || die "make install failed"

 einfo "LLVM base is distributed under University of Illinois Open Source"
 einfo "License, for details see doc/LICENSE.TXT"
 dodoc $S/LICENSE.TXT
 
 # don't install html.tar.gz in /usr/share/doc
	einfo "Removing archived html documentation"
 rm "$D"/usr/share/doc/$PF/*tar.gz || 
  die "no such file $D/usr/share/doc/$PF/*tar.gz"

	# tblgen does not get installed, so remove their man pages.  
 # llvmgcc.1 and llvmgxx.1 are present here for unknown reasons. But, since 
 # llvm-gcc installs bad man pages, keep the 2 files alive
	einfo "Removing unnecessary man page"
	rm "${D}"/usr/share/man/man1/tblgen.1
}