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# Copyright 1999-2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/sci-libs/blas-atlas/blas-atlas-3.7.30.ebuild,v 1.2 2007/04/24 01:42:02 markusle Exp $
inherit eutils toolchain-funcs fortran
DESCRIPTION="Automatically Tuned Linear Algebra Software BLAS implementation"
HOMEPAGE="http://math-atlas.sourceforge.net/"
MY_PN=${PN/blas-/}
SRC_URI="mirror://sourceforge/math-atlas/${MY_PN}${PV}.tar.bz2
mirror://gentoo/${MY_PN}-3.7.23-shared-libs.patch.bz2"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~alpha ~amd64 ~ppc ~ppc64 ~sparc ~x86"
IUSE="doc"
RDEPEND="app-admin/eselect-blas
app-admin/eselect-cblas"
DEPEND="${RDEPEND}
>=sys-devel/libtool-1.5"
PROVIDE="virtual/blas"
S="${WORKDIR}/ATLAS"
BLD_DIR="${S}/gentoo-build"
RPATH="${DESTTREE}/$(get_libdir)/blas"
FORTRAN="g77 gfortran"
pkg_setup() {
fortran_pkg_setup
echo
ewarn "Please make sure to disable CPU throttling completely"
ewarn "during the compile of blas-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
ewarn "For users of <=gcc-4.1.1 only:"
ewarn "If you experience failing SANITY tests during"
ewarn "atlas' compile please try passing -mfpmath=387; this"
ewarn "option might also result in much better performance"
ewarn "than using then sse instruction set depending on your"
ewarn "CPU."
echo
epause 10
}
src_unpack() {
unpack ${A}
cd ${S}
epatch "${DISTDIR}"/${MY_PN}-3.7.23-shared-libs.patch.bz2
epatch "${FILESDIR}"/${MY_PN}-asm-gentoo.patch
epatch "${FILESDIR}"/gnuc_default_fix.patch
# make sure shared libs link against proper libraries
if [[ ${FORTRANC} == "gfortran" ]]; then
libs="${LDFLAGS} -lpthread -lgfortran"
else
libs="${LDFLAGS} -lpthread -lg2c"
fi
sed -e "s:SHRD_LNK:${libs}:g" -i Make.top || \
die "Failed to add addtional libs to shared object build"
sed -e "s:= gcc:= $(tc-getCC) ${CFLAGS}:" \
-i CONFIG/src/SpewMakeInc.c || die "Failed to fix Spewmake"
mkdir ${BLD_DIR} || die "failed to generate build directory"
cp "${FILESDIR}"/war ${BLD_DIR} && chmod a+x ${BLD_DIR}/war || \
die "failed to install war"
# force proper 32/64bit libs
local archselect
if [[ "${ARCH}" == "amd64" || "${ARCH}" == "ppc64" ]]; then
archselect="-b 64"
elif [ "${ARCH}" == "alpha" ]; then
archselect=""
else
archselect="-b 32"
fi
# set up compiler/flags using atlas' native configure
local compdefs
compdefs="${compdefs} -C xc '$(tc-getCC)' -F xc '${CFLAGS}'"
compdefs="${compdefs} -C ic '$(tc-getCC)' -F ic '${CFLAGS}'"
compdefs="${compdefs} -C sk '$(tc-getCC)' -F sk '${CFLAGS}'"
compdefs="${compdefs} -C dk '$(tc-getCC)' -F dk '${CFLAGS}'"
compdefs="${compdefs} -C sm '$(tc-getCC)' -F sm '${CFLAGS}'"
compdefs="${compdefs} -C dm '$(tc-getCC)' -F dm '${CFLAGS}'"
compdefs="${compdefs} -C if '${FORTRANC}' -F if '${FFLAGS}'"
compdefs="${compdefs} -Ss pmake '\$(MAKE) ${MAKEOPTS}'"
compdefs="${compdefs} -Si cputhrchk 0 ${archselect}"
cd ${BLD_DIR} && ../configure ${compdefs} \
|| die "configure failed"
}
src_compile() {
cd ${BLD_DIR}
emake -j1 || die "make failed"
make shared-strip RPATH=${RPATH}/atlas || \
die "failed to build shared libraries"
# build shared libraries of threaded libraries if applicable
if [ -d gentoo/libptf77blas.a ]; then
make ptshared-strip RPATH=${RPATH}/threaded-atlas || \
die "failed to build threaded shared libraries"
fi
}
src_install () {
dodir "${RPATH}"/atlas
cd ${BLD_DIR}/gentoo/libs
cp -P libatlas* "${D}/${DESTTREE}/$(get_libdir)" || \
die "Failed to install libatlas"
cp -P *blas* "${D}/${RPATH}"/atlas || \
die "Failed to install blas/cblas"
eselect blas add $(get_libdir) ${FILESDIR}/eselect.blas atlas
eselect cblas add $(get_libdir) ${FILESDIR}/eselect.cblas atlas
if [ -d ${BLD_DIR}/gentoo/threaded-libs ]
then
dodir "${RPATH}"/threaded-atlas
cd ${BLD_DIR}/gentoo/threaded-libs
cp -P * "${D}/${RPATH}"/threaded-atlas || \
die "Failed to install threaded atlas"
eselect blas add $(get_libdir) ${FILESDIR}/eselect.blas-threaded threaded-atlas
eselect cblas add $(get_libdir) ${FILESDIR}/eselect.cblas-threaded threaded-atlas
fi
insinto "${DESTTREE}"/include/atlas
doins "${S}"/include/cblas.h "${S}"/include/atlas_misc.h \
"${S}"/include/atlas_enum.h || \
die "failed to install headers"
# These headers contain the architecture-specific
# optimizations determined by ATLAS. The atlas-lapack build
# is much shorter if they are available, so save them:
doins ${BLD_DIR}/include/*.h || \
die "failed to install timing headers"
#some docs
cd "${S}"
dodoc README doc/{AtlasCredits.txt,ChangeLog}
use doc && dodoc doc/*.ps
}
pkg_postinst() {
local THREADED
if [ -d "${RPATH}"/threaded-atlas ]
then
THREADED="threaded-"
fi
if [[ -z "$(eselect blas show)" ]]; then
eselect blas set ${THREADED}atlas
fi
if [[ -z "$(eselect cblas show)" ]]; then
eselect cblas set ${THREADED}atlas
fi
elog
elog "Fortran users link using -lblas"
elog
elog "C users compile against the header ${ROOT}usr/include/atlas/cblas.h and"
elog "link using -lcblas"
elog
elog "If using threaded ATLAS, you may also need to link with -lpthread."
elog
elog "Configuration now uses eselect rather than blas-config."
}
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