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# Copyright 1999-2016 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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# $Id$
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EAPI=5
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inherit autotools eutils flag-o-matic multilib
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DESCRIPTION="Elliptic Curve Method for Integer Factorization"
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HOMEPAGE="http://ecm.gforge.inria.fr/"
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SRC_URI="https://gforge.inria.fr/frs/download.php/32159/${P}.tar.gz"
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LICENSE="GPL-3 LGPL-3"
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SLOT="0"
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KEYWORDS="~amd64 ~x86"
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IUSE="+blas +custom-tune gwnum -openmp static-libs test"
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DEPEND="
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dev-libs/gmp:0=
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blas? ( sci-libs/gsl )
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gwnum? ( sci-mathematics/gwnum )
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openmp? ( sys-devel/gcc:*[openmp] )"
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RDEPEND="${DEPEND}"
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# can't be both enabled
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REQUIRED_USE="gwnum? ( !openmp )"
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S=${WORKDIR}/ecm-${PV}
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MAKEOPTS+=" -j1"
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src_prepare() {
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sed -e '/libecm_la_LIBADD/s:$: -lgmp:g' -i Makefile.am || die
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eautoreconf
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}
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src_configure() {
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use gwnum && local myconf="--with-gwnum="${EPREFIX}"/usr/$(get_libdir)"
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# --enable-shellcmd is broken
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econf \
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--enable-shared \
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$(use_enable static-libs static) \
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$(use_enable openmp) \
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${myconf}
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}
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src_compile() {
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append-ldflags "-Wl,-z,noexecstack"
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if use custom-tune; then
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use amd64 && cd x86_64
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use x86 && cd pentium4
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emake
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cd .. && make bench_mulredc || die
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sed -i -e 's:#define TUNE_MULREDC_TABLE://#define TUNE_MULREDC_TABLE:g' `readlink ecm-params.h` || die
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sed -i -e 's:#define TUNE_SQRREDC_TABLE://#define TUNE_SQRREDC_TABLE:g' `readlink ecm-params.h` || die
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./bench_mulredc | tail -n 4 >> `readlink ecm-params.h` || die
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fi
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default
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}
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src_install() {
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default
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mkdir -p "${ED}/usr/include/${PN}/"
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cp "${S}"/*.h "${ED}/usr/include/${PN}" || die "Failed to copy headers" # needed by other apps like YAFU
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}
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