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# Copyright 1999-2013 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=4
DESCRIPTION="Elliptic Curve Method for Integer Factorization"
HOMEPAGE="http://ecm.gforge.inria.fr/"
SRC_URI="https://gforge.inria.fr/frs/download.php/30965/${P}.tar.gz"
inherit eutils
LICENSE="GPL-3 LGPL-3"
SLOT="0"
KEYWORDS="~amd64 ~x86"
IUSE="+blas +custom-tune gwnum -openmp test"
# gmp 5.1 breaks a few things with this version
DEPEND="<dev-libs/gmp-5.1.0
blas? ( sci-libs/gsl )
gwnum? ( sci-mathematics/gwnum )
openmp? ( sys-devel/gcc[openmp] )"
RDEPEND="${DEPEND}"
# can't be both enabled
REQUIRED_USE="gwnum? ( !openmp )"
S=${WORKDIR}/ecm-${PV}
src_configure() {
if use gwnum; then myconf="--with-gwnum=/usr/lib"; fi
# --enable-shellcmd is broken
econf $(use_enable openmp) $myconf
}
src_compile() {
if use custom-tune; then
use amd64 && cd x86_64
use x86 && cd pentium4
emake -j1 || die # build libecm/libmulredc.la
cd .. && make bench_mulredc || die
sed -i -e 's:#define TUNE_MULREDC_TABLE://#define TUNE_MULREDC_TABLE:g' `readlink ecm-params.h` || die
sed -i -e 's:#define TUNE_SQRREDC_TABLE://#define TUNE_SQRREDC_TABLE:g' `readlink ecm-params.h` || die
./bench_mulredc | tail -n 4 >> `readlink ecm-params.h` || die
fi
emake -j1 || die
}
src_install() {
emake DESTDIR="${D}" install || die
mkdir -p "${D}/usr/include/${PN}/"
cp "${S}"/*.h "${D}/usr/include/${PN}" || die "Failed to copy headers" # needed by other apps like YAFU
}
src_test() {
make check || die
}
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