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# Copyright 1999-2014 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
inherit eutils toolchain-funcs
DESCRIPTION="Yacc: Yet Another Compiler-Compiler"
HOMEPAGE="http://dinosaur.compilertools.net/#yacc"
SRC_URI="ftp://metalab.unc.edu/pub/Linux/devel/compiler-tools/${P}.tar.Z"
LICENSE="public-domain"
SLOT="0"
KEYWORDS="alpha amd64 arm arm64 hppa ia64 ~mips ppc ppc64 s390 sh sparc x86"
IUSE=""
DEPEND=""
src_unpack() {
unpack ${A}
cd "${S}"
# Use our CFLAGS
sed -i -e 's: -O : $(CFLAGS) :' Makefile || die 'sed failed'
# mkstemp patch from byacc ebuild
epatch "${FILESDIR}"/mkstemp.patch
# The following patch fixes yacc to run correctly on ia64 (and
# other 64-bit arches). See bug 46233
epatch "${FILESDIR}"/${P}-ia64.patch
# avoid stack access error, bug 232005
epatch "${FILESDIR}"/${P}-CVE-2008-3196.patch
}
src_compile() {
make clean || die
emake -j1 CC="$(tc-getCC)" CFLAGS="${CFLAGS}" || die
}
src_install() {
dobin yacc || die
doman yacc.1
dodoc 00README* ACKNOWLEDGEMENTS NEW_FEATURES NO_WARRANTY NOTES README*
}
pkg_preinst() {
# bison installs a /usr/bin/yacc symlink ...
# we need to remove it to avoid triggering
# collision-protect errors #90089
if [[ -L ${ROOT}/usr/bin/yacc ]] ; then
rm -f "${ROOT}"/usr/bin/yacc
fi
}
pkg_postrm() {
# and if we uninstall yacc but keep bison,
# lets restore the /usr/bin/yacc symlink
if [[ ! -e ${ROOT}/usr/bin/yacc ]] && [[ -e ${ROOT}/usr/bin/yacc.bison ]] ; then
ln -s yacc.bison "${ROOT}"/usr/bin/yacc
fi
}
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