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# Copyright 1999-2010 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
EAPI="2"
inherit multilib toolchain-funcs
MY_P="${PN}${PV/./}"
DESCRIPTION="Unified compressor for PAQ algorithms"
HOMEPAGE="http://mattmahoney.net/dc/#zpaq"
SRC_URI="http://mattmahoney.net/dc/${MY_P}.zip"
LICENSE="GPL-3 ISOC-rfc"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="optimization"
DEPEND="app-arch/unzip"
RDEPEND=""
src_prepare() {
tc-export CXX
# make it FHS-friendly
sed -e 's:^pcomp :&/usr/libexec/zpaq/:' -i *.cfg || die
use optimization && printf '#define OPT\n#include "zpaq.cpp"\n' > zpaqstub.cpp
}
src_configure() {
if use optimization; then
# NOTE: zpaqmake is used in runtime by zpaq to compile profiles
# please do not complain about stripping, it's not for build time
local stripflag=' -Wl,--strip-all'
# check whether the default compiler supports -Wl,--strip-all
echo 'int main(void) {return 0;}' > striptest.cpp
emake LDFLAGS+="${stripflag}" striptest \
|| stripflag=
sed \
-e "s:%CXX%:${CXX}:" \
-e "s:%CXXFLAGS%:${CXXFLAGS}:" \
-e "s:%LIBDIR%:$(get_libdir):" \
-e "s:%LDFLAGS%:${LDFLAGS}${stripflag}:" \
"${FILESDIR}"/zpaqmake.in > zpaqmake || die
fi
}
src_compile() {
local optstub=
use optimization && optstub=zpaqstub.o
emake CPPFLAGS+=-DNDEBUG zpaq lzppre ${optstub} || die
}
src_install() {
dobin zpaq || die
dodoc readme.txt || die
if use optimization; then
dobin zpaqmake || die
insinto /usr/include/zpaq
doins zpaq.h || die
insinto /usr/$(get_libdir)/zpaq
doins zpaqstub.o || die
fi
# Preprocessors
exeinto /usr/libexec/zpaq
doexe lzppre || die
# These are more like compression profiles, so install them in /usr/share
insinto /usr/share/zpaq
doins *.cfg || die
}
pkg_postinst() {
elog "Unlike conventional archivers, zpaq doesn't have any algorithm chain"
elog "compiled in by default. Instead, it provides many PAQ components to allow"
elog "user to create his own chain and supply it as configuration file."
elog
elog "We install few default configs in /usr/share/zpaq to start with. They can"
elog "be used like that:"
if use optimization; then
elog " zpaq oc/usr/share/zpaq/max.cfg out.zpaq files"
else
elog " zpaq c/usr/share/zpaq/max.cfg out.zpaq files"
fi
elog
elog "You may also want to install app-arch/zpaq-extras package which provides"
elog "few additional configs and preprocessors for use with zpaq."
}
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