e7922302e2
git-svn-id: https://svn.disconnected-by-peer.at/svn/linamh/trunk/linamh@180 6952d904-891a-0410-993b-d76249ca496b
155 lines
5.3 KiB
Bash
155 lines
5.3 KiB
Bash
# Copyright 1999-2007 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Header: $
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inherit eutils
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DESCRIPTION="Low Level Virtual Machine"
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HOMEPAGE="http://llvm.org/"
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SRC_URI="http://llvm.org/releases/${PV}/llvm-${PV}.tar.gz"
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LICENSE="LLVM"
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# most part of LLVM fall under the "University of Illinois Open Source License"
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# which doesn't seem to exist in portage yet, so I call it 'LLVM' for now. it
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# can be read from llvm/LICENSE.TXT in the source tarball.
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# the directory llvm/runtime/GCCLibraries/libc contains a stripped down C
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# library licensed under the LGPL 2.1 with some third party copyrights, see the
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# two LICENCE* files in that directory. Those parts do *not* get built, so
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# we omit LGPL in ${LICENCE}
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SLOT="0"
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KEYWORDS="~x86"
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# That arch status as of 2.0 is as follows (according to the docs):
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#
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# x86: Works. Code generation for >= i568
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#
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# x86-64: Claimed to work. No native code generation
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#
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# PowerPC: Partial support claimed. No native code generation. (C/C++
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# frontend will not build on this)
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#
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# Alpha: Partial support claimed. Native code generation exists but is
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# incomplete
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#
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# IA-64: Partial support claimed. Native code generation exists but is
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# incomplete
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IUSE="debug alltargets"
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# 'jit' is not a flag anymore. at least on x86, disabling it saves nothing
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# at all, so having it always enabled for platforms that support it is fine
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# we're not mirrored, fetch from homepage
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RESTRICT="mirror"
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DEPEND="dev-lang/perl"
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RDEPEND="dev-lang/perl"
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PDEPEND=""
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# note that app-arch/pax is no longer a dependency
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S="${WORKDIR}/llvm-${PV}"
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MY_LLVM_GCC_PREFIX=/usr/lib/llvm-gcc
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# this same variable is located in llvm-gcc's ebuild; keep them in sync
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pkg_setup() {
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# TODO: some version of GCC are known to miscompile LLVM, check for them
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# here. (See docs/GettingStarted.html)
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# inherit toolchain-funcs
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# tc-getXX
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# gcc-fullversion
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true
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}
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src_unpack() {
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unpack ${A}
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cd "${S}"
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# unfortunately ./configure won't listen to --mandir and the-like, so take
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# care of this.
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einfo "Fixing install dirs"
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sed -e 's,^PROJ_docsdir.*,PROJ_docsdir := $(DESTDIR)$(PROJ_prefix)/share/doc/'${PF}, \
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-e 's,^PROJ_etcdir.*,PROJ_etcdir := $(DESTDIR)/etc/llvm,' \
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-i Makefile.config.in || die "sed failed"
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# fix gccld and gccas, which would otherwise point to the build directory
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einfo "Fixing gccld and gccas"
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sed -e 's,^TOOLDIR.*,TOOLDIR=/usr/bin,' \
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-i tools/gccld/gccld.sh tools/gccas/gccas.sh || die "sed failed"
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# all binaries get rpath'd to a dir in the temporary tree that doesn't
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# contain libraries anyway; can safely remove those to avoid QA warnings
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# (the exception would be if we build shared libraries, which we don't)
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einfo "Fixing rpath"
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sed -e 's,-rpath \$(ToolDir),,g' -i Makefile.rules || die "sed failed"
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}
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src_compile() {
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local CONF_FLAGS=""
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if use debug; then
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CONF_FLAGS="${CONF_FLAGS} --disable-optimized"
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einfo "Note: Compiling LLVM in debug mode will create huge and slow binaries"
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# ...and you probably shouldn't use tmpfs, unless it can hold 900MB
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else
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CONF_FLAGS="${CONF_FLAGS} --enable-optimized"
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fi
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if use alltargets; then
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CONF_FLAGS="${CONF_FLAGS} --enable-targets=all"
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else
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CONF_FLAGS="${CONF_FLAGS} --enable-targets=host-only"
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fi
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# a few minor things would be built a bit differently depending on whether
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# llvm-gcc is already present on the system or not. let's avoid that by
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# not letting it find llvm-gcc. llvm-gcc isn't required for anything
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# anyway. this dummy path will get spread to a few places, but none where
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# it really matters.
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CONF_FLAGS="${CONF_FLAGS} --with-llvmgccdir=/dev/null"
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econf ${CONF_FLAGS} || die "econf failed"
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emake tools-only || die "emake failed"
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}
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src_install()
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{
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make DESTDIR="${D}" install || die "make install failed"
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# for some reason, LLVM creates a few .dir files. remove them
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find "${D}" -name .dir -print0 | xargs -r0 rm
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# tblgen and stkrc do not get installed and wouldn't be very useful anyway,
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# so remove their man pages. llvmgcc.1 and llvmgxx.1 are present here for
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# unknown reasons. llvm-gcc will install proper man pages for itself, so
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# remove these strange thingies here.
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einfo "Removing unnecessary man pages"
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rm "${D}"/usr/share/man/man1/{tblgen,stkrc,llvmgcc,llvmgxx}.1
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# this also installed the man pages llvmgcc.1 and llvmgxx.1, which is a bit
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# a mistery because those binares are provided by llvm-gcc
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# llvmc makes use of the files in /etc/llvm to find programs to run; those
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# files contain markers that are meant to be replaced at runtime with
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# strings that were determined at llvm-base's compile time (odd isn't it?);
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# those strings will be empty in case llvm-base is built while llvm-gcc
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# doesn't exist yet (which is a common case). to make things work in
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# either case, fix it by replacing the markers with hard strings of where
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# llvm-gcc will be in case it will be installed
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einfo "Configuring llvmc"
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for X in c c++ cpp cxx ll st; do
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sed -e "s,%cc1%,${MY_LLVM_GCC_PREFIX}/libexec/gcc/${CHOST}/4.0.1/cc1,g" \
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-e "s,%cc1plus%,${MY_LLVM_GCC_PREFIX}/libexec/gcc/${CHOST}/4.0.1/cc1plus,g" \
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-e "s,%llvmgccdir%,${MY_LLVM_GCC_PREFIX},g" \
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-e "s,%llvmgcclibexec%,${MY_LLVM_GCC_PREFIX}/libexec/gcc/${CHOST}/4.0.1,g" \
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-e "s,%bindir%,/usr/bin,g" \
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-i "${D}/etc/llvm/$X" || "sed failed"
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done
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}
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