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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/lapack-atlas/lapack-atlas-3.7.15.ebuild,v 1.3 2006/09/03 18:16:10 markusle Exp $
inherit eutils flag-o-matic toolchain-funcs fortran
DESCRIPTION="Full LAPACK implementation using available ATLAS routines"
LICENSE="BSD"
HOMEPAGE="http://math-atlas.sourceforge.net/"
MY_PN="${PN/lapack-/}"
SRC_URI1="mirror://sourceforge/math-atlas/${MY_PN}${PV}.tar.bz2"
SRC_URI2="http://www.netlib.org/lapack/lapack.tgz"
SRC_URI="${SRC_URI1} ${SRC_URI2}
mirror://gentoo/lapack-20020531-20021004.patch.bz2
mirror://gentoo/${MY_PN}-${PV}-shared-libs.patch.bz2"
SLOT="0"
IUSE="doc"
KEYWORDS="~alpha ~amd64 ~ppc ~ppc64 ~sparc ~x86"
RDEPEND="virtual/blas
app-admin/eselect-lapack"
DEPEND="${RDEPEND}
>=sys-devel/libtool-1.5
~sci-libs/blas-atlas-3.7.15"
PROVIDE="virtual/lapack"
FORTRAN="g77 gfortran"
S="${WORKDIR}/ATLAS"
S_LAPACK="${WORKDIR}/LAPACK"
BLD_DIR="${S}/gentoo-build"
RPATH="${DESTTREE}/$(get_libdir)/lapack/atlas"
pkg_setup() {
fortran_pkg_setup
echo
ewarn "Please make sure to disable CPU throttling completely"
ewarn "during the compile of lapack-atlas. Otherwise, all atlas"
ewarn "generated timings will be completely random and the"
ewarn "performance of the resulting libraries will be degraded"
ewarn "considerably."
echo
epause 8
}
src_unpack() {
unpack ${A}
cd "${WORKDIR}"
epatch "${DISTDIR}"/${MY_PN}-${PV}-shared-libs.patch.bz2
epatch "${DISTDIR}"/lapack-20020531-20021004.patch.bz2
epatch "${FILESDIR}"/lapack-reference-3.0-autotool.patch
cd "${S}"
mkdir ${BLD_DIR} || die "failed to generate build directory"
cp "${FILESDIR}"/war "${BLD_DIR}" && chmod a+x "${BLD_DIR}"/war \
|| die "failed to install war"
cd "${BLD_DIR}" && ../configure -Si cputhrchk 0 \
|| die "configure failed"
sed -e "s:GENTOO_GCC:$(tc-getCC):" \
-e "s:GENTOO_FORTRAN:${FORTRANC}:" \
-e "s:GENTOO_CFLAGS:${CFLAGS}:" \
-e "s:GENTOO_FFLAGS:${FFLAGS}:" \
-e "s: INCLUDES =: INCLUDES = -I/usr/include/atlas :" \
-i Make.inc || die "Failed to fix Make.inc"
cd "${S_LAPACK}"
eautoreconf
}
src_compile() {
# build atlas' part of lapack
cd "${BLD_DIR}"/src/lapack
make lib || die "Failed to make lib in ${BLD_DIR}/src/lapack"
cd "${BLD_DIR}"/interfaces/lapack/C/src
make lib || die "Failed to make lib in ${BLD_DIR}/interfaces/lapack/C/src"
cd "${BLD_DIR}"/interfaces/lapack/F77/src
make lib || die "Failed to make lib in ${BLD_DIR}/interfaces/lapack/F77/src"
# build rest of lapack
cd "${S_LAPACK}"
econf || die "Failed to configure reference lapack lib"
emake || die "Failed to make reference lapack lib"
cd "${S_LAPACK}"/SRC
einfo "Copying liblapack.a/*.o to ${S_LAPACK}/SRC"
cp -sf "${BLD_DIR}"/gentoo/liblapack.a/*.o .
einfo "Copying liblapack.a/*.lo to ${S_LAPACK}/SRC"
cp -sf "${BLD_DIR}"/gentoo/liblapack.a/*.lo .
einfo "Copying liblapack.a/.libs/*.o to ${S_LAPACK}/SRC"
cp -sf "${BLD_DIR}"/gentoo/liblapack.a/.libs/*.o .libs/
# make sure shared libs link against proper libraries
if [[ ${FORTRANC} == "gfortran" ]]; then
libs="${LDFLAGS} -lpthread -lgfortran"
else
libs="${LDFLAGS} -lpthread -lg2c"
fi
libtool --mode=link --tag=F77 ${FORTRANC} -o liblapack.la *.lo \
-rpath "${RPATH}" -lblas -lcblas -latlas ${libs} \
|| die "Failed to create liblapack.la"
}
src_install () {
dodir "${RPATH}"
cd "${S_LAPACK}"/SRC
libtool --mode=install install -s liblapack.la "${D}/${RPATH}" \
|| die "Failed to install lapack-atlas library"
eselect lapack add $(get_libdir) ${FILESDIR}/eselect.lapack atlas
insinto /usr/include/atlas
cd "${S}"/include
doins clapack.h || die "Failed to install clapack.h"
cd "${S}"
dodoc README doc/AtlasCredits.txt doc/ChangeLog || \
die "Failed to install docs"
if use doc; then
dodoc doc/lapackqref.ps || die "Failed to install docs"
fi
}
pkg_postinst() {
if [[ -z "$(eselect lapack show)" ]]; then
eselect lapack set atlas
fi
elog
elog "To link with ATLAS LAPACK from C or Fortran, simply use:"
elog
elog "-llapack"
elog
elog "C users: your header is /usr/include/atlas/clapack.h"
elog
elog "Configuration now uses eselect rather than lapack-config."
}
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