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# Copyright 1999-2006 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-libs/blas-reference/blas-reference-19940131-r2.ebuild,v 1.4 2006/05/15 06:41:19 spyderous Exp $
inherit eutils fortran
Name="blas"
DESCRIPTION="FORTRAN reference implementation of the BLAS (linear algebra lib)"
LICENSE="public-domain"
HOMEPAGE="http://www.netlib.org/blas/"
SRC_URI="http://www.netlib.org/blas/${Name}.tgz"
SLOT="0"
IUSE="ifc"
KEYWORDS="~amd64 ~ppc ~x86"
DEPEND="sci-libs/blas-config
>=sys-devel/libtool-1.5
ifc? ( dev-lang/ifc )"
RDEPEND="ifc? ( dev-lang/ifc )" # Need ifc runtime libraries
PROVIDE="virtual/blas"
#TODO: detect 64bit size from compiler, not eclass
FORTRAN="g77 ifc" || FORTRAN="g77 f2c ifc" # No f2c on 64-bit systems yet :-/
S="${WORKDIR}"
ifc_info() {
if [ -z "${IFCFLAGS}" ]
then
einfo
einfo "You may want to set some ifc optimization flags by running this"
einfo "ebuild as, for example, \`IFCFLAGS=\"-O3 -tpp7 -xW\" emerge blas\`"
einfo "(Pentium 4 exclusive optimizations)."
einfo
einfo "ifc defaults to -O2, with code tuned for Pentium 4, but that"
einfo "will run on any processor."
einfo
einfo "Beware that ifc's -O3 is very aggressive, sometimes resulting in"
einfo "significantly worse performance."
einfo
fi
}
src_unpack() {
unpack ${A}
cd "${S}"
cp "${FILESDIR}"/Makefile .
}
src_compile() {
# Profile information will be installed in TOP_PATH:
TOP_PATH="${DESTTREE}"/lib/blas
# Libraries will be installed in RPATH:
RPATH="${TOP_PATH}"/reference
if use ifc; then
ifc_info
make static FC="ifc" FFLAGS="${IFCFLAGS}" || die
libtool --tag=F77 --mode=link ifc -shared ${IFCFLAGS} \
-Wl,-soname,libblas.so.0 -o libblas.so.0.0.0 *.lo || die
else
# libg2c is required to link to libblas.so using ifc:
make libs FC="g77" FFLAGS="${CFLAGS}" \
LIBTOOL_FLAGS="-rpath ${RPATH} -lg2c" || die
fi
}
src_install() {
if use ifc; then
strip --strip-unneeded libblas.so.0.0.0 || die
strip --strip-debug libblas.a || die
exeinto ${RPATH}
doexe libblas.so.0.0.0 || die
dosym libblas.so.0.0.0 ${RPATH}/libblas.so.0 || die
dosym libblas.so.0.0.0 ${RPATH}/libblas.so || die
insinto ${RPATH}
doins libblas.a || die
else
dodir ${RPATH} || die
libtool install -s libblas.la ${D}/${RPATH} || die
fi
insinto ${TOP_PATH}
doins ${FILESDIR}/f77-reference || die
}
pkg_postinst() {
blas-config f77-reference
}
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