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# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
EAPI=4
inherit eutils toolchain-funcs versionator alternatives-2 multilib
LAPACKP=lapack-3.3.1
DESCRIPTION="Automatically Tuned Linear Algebra Software"
HOMEPAGE="http://math-atlas.sourceforge.net/"
SRC_URI="mirror://sourceforge/math-atlas/${PN}${PV}.tar.bz2
fortran? ( lapack? ( http://www.netlib.org/lapack/${LAPACKP}.tgz ) )"
LICENSE="BSD"
SLOT="0"
KEYWORDS="~amd64 ~x86 ~amd64-linux"
IUSE="fortran doc lapack static-libs threads"
RDEPEND="fortran? ( virtual/fortran )"
DEPEND="${RDEPEND}
!prefix? ( sys-power/cpufrequtils )"
S="${WORKDIR}/ATLAS"
lapack_compile() {
cd "${WORKDIR}/${LAPACKP}"
local timer=INT_CPU_TIME
case $(tc-getFC) in
*gfortran|*g77) timer=INT_ETIME ;;
*ifort) timer=EXT_ETIME ;;
esac
cat > make.inc <<-EOF
FORTRAN = $(tc-getFC)
OPTS = ${FFLAGS}
NOOPT = -O0
LOADER = $(tc-getFC)
LOADEROPTS = ${LDFLAGS}
ARCH = $(tc-getAR)
ARCHFLAGS = cr
RANLIB = $(tc-getRANLIB)
TIMER = ${timer}
EOF
if use static-libs; then
emake \
LAPACKLIB=liblapack_nonpic.a \
lapacklib || die "lapack static compilation failed"
emake clean
fi
emake \
LAPACKLIB=liblapack_pic.a \
OPTS="${FFLAGS} -fPIC" \
NOOPT="-O0 -fPIC" \
lapacklib || die "lapack pic compilation failed"
}
atlas_configure() {
local mycc="$(tc-getCC)"
# http://sourceforge.net/tracker/?func=detail&aid=3301697&group_id=23725&atid=379483
[[ ${mycc} == *gcc* ]] && mycc=gcc
local myconf=(
"--prefix=${ED}/usr"
"--libdir=${ED}/usr/$(get_libdir)"
"--incdir=${ED}/usr/include"
"--cc=${mycc}"
"-C ac ${mycc}"
"-D c -DWALL"
"-F ac '${CFLAGS}'"
"-Ss pmake '\$(MAKE) ${MAKEOPTS}'"
)
if use threads; then
myconf+=( "-t -1" )
else
myconf+=( "-t 0" )
fi
if use amd64 || use ppc64 || use sparc; then
if [ ${ABI} = amd64 ] || [ ${ABI} = ppc64 ] || [ ${ABI} = sparc64 ] ; then
myconf+=( "-b 64" )
elif [ ${ABI} = x86 ] || [ ${ABI} = ppc ] || [ ${ABI} = sparc32 ] ; then
myconf+=( "-b 32" )
else
myconf+=( "-b 64" )
fi
elif use ppc || use x86; then
myconf+=( "-b 32" )
elif use ia64; then
myconf+=( "-b 64" )
else #hppa alpha ...
myconf+=( "" )
fi
if use fortran; then
myconf+=(
"-Si nof77 0"
"-C if $(tc-getFC)"
"-F if '${FFLAGS}'"
)
use lapack && myconf+=( "--with-netlib-lapack=${LAPACKLIB}" )
else
myconf+=( "-Si nof77 1" )
fi
local confdir="${S}_${1}"; shift
myconf+=( $@ )
mkdir "${confdir}" && cd "${confdir}"
"${S}"/configure ${myconf[@]} || die "configure in ${confdir} failed"
}
atlas_compile() {
pushd "${S}_${1}" > /dev/null
# atlas does its own parallel builds
emake -j1 build
cd lib
emake libclapack.a
popd > /dev/null
}
# transform a static archive into a shared library and install them
# atlas_install_libs <mylib.a> [extra link flags]
atlas_install_libs() {
local libname=$(basename ${1%.*})
einfo "Installing ${libname}"
local soname=${libname}.so.$(get_major_version)
shift
pushd "${S}_shared"/lib > /dev/null
${LINK:-$(tc-getCC)} ${LDFLAGS} -shared -Wl,-soname=${soname} \
-Wl,--whole-archive ${libname}.a -Wl,--no-whole-archive \
"$@" -o ${soname} || die "Creating ${soname} failed"
dolib.so ${soname}
ln -s ${soname} ${soname%.*}
dosym ${soname} /usr/$(get_libdir)/${soname%.*}
popd > /dev/null
use static-libs && dolib.a "${S}_static"/lib/${libname}.a
}
# create and install a pkgconfig file
# atlas_install_pc <libname> <pkg name> [extra link flags]
atlas_install_pc() {
local libname=${1} ; shift
local pcname=${1} ; shift
cat <<-EOF > ${pcname}.pc
prefix=${EPREFIX}/usr
libdir=\${prefix}/$(get_libdir)
includedir=\${prefix}/include
Name: ${pcname}
Description: ${PN} ${pcname}
Version: ${PV}
URL: ${HOMEPAGE}
Libs: -L\${libdir} -l${libname} $@
Cflags: -I\${includedir}/${PN}
${PCREQ}
EOF
insinto /usr/$(get_libdir)/pkgconfig
doins ${pcname}.pc
}
pkg_setup() {
if [[ -n $(type -P cpufreq-info) ]]; then
[[ -z $(cpufreq-info -d) ]] && return
local ncpu=$(LANG=C cpufreq-info | grep -c "analyzing CPU")
local cpu=0
while [[ ${cpu} -lt ${ncpu} ]]; do
if ! $(LANG=C cpufreq-info -p -c ${cpu} | grep -q performance); then
ewarn "CPU $cpu is not set to performance"
ewarn "Run cpufreq-set -r -g performance as root"
fi
cpu=$(( cpu + 1 ))
done
else
ewarn "Please make sure to disable CPU throttling completely"
ewarn "during the compile of ${PN}. Otherwise, all ${PN}"
ewarn "generated timings will be completely random and the"
ewarn "performance of the resulting libraries will be degraded"
ewarn "considerably."
fi
}
src_prepare() {
epatch "${FILESDIR}"/3.9.39-bfr-overflow.patch
}
src_configure() {
if use fortran && use lapack; then
lapack_compile
LAPACKLIB="${WORKDIR}/${LAPACKP}/liblapack_pic.a"
fi
atlas_configure shared "-Fa alg -fPIC"
if use static-libs; then
use fortran && use lapack && \
LAPACKLIB="${WORKDIR}/${LAPACKP}/liblapack_nonpic.a"
atlas_configure static
fi
}
src_compile() {
atlas_compile shared
use static-libs && atlas_compile static
}
src_test() {
cd "${S}_shared"
emake -j1 check
emake -j1 time
}
src_install() {
cd "${S}_shared/lib"
# rename to avoid collision with other packages
local l
for l in {,c}{blas,lapack}; do
if [[ -e lib${l}.a ]]; then
mv lib{,atl}${l}.a
use static-libs && mv "${S}"_static/lib/lib{,atl}${l}.a
fi
done
[[ -e libptcblas.a ]] && PTLIBS="-lpthread"
# atlas
atlas_install_libs libatlas.a -lm ${PTLIBS}
# cblas
atlas_install_libs libatlcblas.a -lm -L. -latlas
atlas_install_pc atlcblas atlas-cblas -lm -latlas
alternatives_for cblas atlas 0 \
/usr/$(get_libdir)/pkgconfig/cblas.pc atlas-cblas.pc \
/usr/include/cblas.h atlas/cblas.h
# cblas threaded
if [[ -e libptcblas.a ]]; then
atlas_install_libs libptcblas.a -lm -L. -latlas ${PTLIBS}
atlas_install_pc ptcblas atlas-cblas-threads -lm -latlas ${PTLIBS}
alternatives_for cblas atlas-threads 0 \
/usr/$(get_libdir)/pkgconfig/cblas.pc atlas-cblas-threads.pc \
/usr/include/cblas.h atlas/cblas.h
fi
if use lapack; then
PCREQ="Requires: cblas"
# clapack
atlas_install_libs libatlclapack.a -lm -L. -latlas -latlcblas
atlas_install_pc atlclapack atlas-clapack -lm -latlas
fi
if use fortran; then
LINK=$(tc-getF77) PCREQ=
# blas
atlas_install_libs libf77blas.a -lm -L. -latlas
atlas_install_pc f77blas atlas-blas -lm -latlas
alternatives_for blas atlas 0 \
/usr/$(get_libdir)/pkgconfig/blas.pc atlas-blas.pc
# blas threaded
if [[ -e libptf77blas.a ]]; then
atlas_install_libs libptf77blas.a -lm -L. -latlas ${PTLIBS}
atlas_install_pc ptf77blas atlas-blas-threads -lm -latlas ${PTLIBS}
alternatives_for blas atlas-threads 0 \
/usr/$(get_libdir)/pkgconfig/blas.pc atlas-blas-threads.pc
fi
if use lapack; then
PCREQ="Requires: blas cblas"
# lapack
atlas_install_libs libatllapack.a \
-lm -L. -latlas -latlcblas -lf77blas
atlas_install_pc atllapack atlas-lapack -lm -latlas
alternatives_for lapack atlas 0 \
/usr/$(get_libdir)/pkgconfig/lapack.pc atlas-lapack.pc
fi
fi
cd "${S}"
insinto /usr/include/${PN}
doins include/*.h
cd "${S}/doc"
dodoc INDEX.txt AtlasCredits.txt ChangeLog
use doc && dodoc atlas*pdf cblas.pdf cblasqref.pdf
use doc && use fortran && dodoc f77blas*pdf
use doc && use fortran && use lapack && dodoc lapack*pdf
}
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