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# Copyright 1999-2004 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.ebuild,v 1.2 2004/12/29 18:32:02 ribosome Exp $
inherit eutils
Name="blas"
DESCRIPTION="FORTRAN reference implementation of the BLAS (linear algebra lib)"
HOMEPAGE="http://www.netlib.org/blas/"
SRC_URI="http://www.netlib.org/blas/${Name}.tgz"
LICENSE="public-domain"
SLOT="0"
KEYWORDS="~x86 ~amd64"
IUSE="ifc"
DEPEND="sci-libs/blas-config
>=sys-devel/libtool-1.5
ifc? ( dev-lang/ifc )"
RDEPEND="ifc? ( dev-lang/ifc )" # Need ifc runtime libraries
PROVIDE="virtual/blas"
S=${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
epause 5
fi
}
pkg_setup() {
use ifc || if [ -z `which g77` ]; then
#if ifc is defined then the dep was already checked
eerror "No fortran compiler found on the system!"
eerror "Please add g77 to your USE flags and reemerge gcc!"
die
fi
}
src_unpack() {
unpack ${A}
cd ${S}
cp ${FILESDIR}/Makefile.gz .
gunzip Makefile.gz
}
src_compile() {
# Profile information will be installed in TOP_PATH:
TOP_PATH=${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}"
ifc -shared ${IFCFLAGS} \
-Wl,-soname,libblas.so.0 -o libblas.so.0.0.0 *.lo
else
# libg2c is required to link to libblas.so using ifc:
make libs \
FC="g77" \
FFLAGS="${CFLAGS}" \
LIBTOOL_FLAGS="-rpath ${RPATH} -lg2c" \
|| die
fi
}
src_install() {
if use ifc
then
strip --strip-unneeded libblas.so.0.0.0
strip --strip-debug libblas.a
exeinto ${RPATH}
doexe libblas.so.0.0.0
dosym libblas.so.0.0.0 ${RPATH}/libblas.so.0
dosym libblas.so.0.0.0 ${RPATH}/libblas.so
insinto ${RPATH}
doins libblas.a
else
dodir ${RPATH}
libtool install -s libblas.la ${D}/${RPATH}
fi
insinto ${TOP_PATH}
doins ${FILESDIR}/f77-reference
}
pkg_postinst() {
blas-config f77-reference
}
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