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# Copyright 1999-2021 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2
EAPI=5
inherit epatch flag-o-matic autotools toolchain-funcs
DESCRIPTION="The GNU Scientific Library"
HOMEPAGE="https://www.gnu.org/software/gsl/"
SRC_URI="mirror://gnu/${PN}/${P}.tar.gz
https://dev.gentoo.org/~mgorny/dist/${P}-cblas.patch.bz2"
LICENSE="GPL-3"
SLOT="0"
KEYWORDS="~alpha amd64 arm arm64 ~hppa ~ia64 ~mips ppc ppc64 ~s390 sparc x86 ~amd64-linux ~x86-linux ~sparc-solaris ~x86-solaris"
IUSE="cblas-external static-libs"
RDEPEND="cblas-external? ( virtual/cblas )"
DEPEND="${RDEPEND}
app-eselect/eselect-cblas
virtual/pkgconfig"
DOCS=( AUTHORS BUGS ChangeLog NEWS README THANKS TODO )
pkg_pretend() {
# prevent to use external cblas from a previously installed gsl
local current_lib
if use cblas-external; then
current_lib=$(eselect cblas show | cut -d' ' -f2)
if [[ ${current_lib} == gsl ]]; then
ewarn "USE flag cblas-external is set: linking gsl with an external cblas."
ewarn "However the current selected external cblas is gsl."
ewarn "Please install and/or eselect another cblas"
die "Circular gsl dependency"
fi
fi
}
src_prepare() {
ESELECT_PROF="gsl"
# bug 349005
[[ $(tc-getCC)$ == *gcc* ]] && \
[[ $(tc-getCC)$ != *apple* ]] && \
[[ $(gcc-major-version)$(gcc-minor-version) -eq 44 ]] \
&& filter-mfpmath sse
filter-flags -ffast-math
epatch "${WORKDIR}"/${P}-cblas.patch
eautoreconf
cp "${FILESDIR}"/eselect.cblas.gsl "${T}"/ || die
sed -i -e "s:/usr:${EPREFIX}/usr:" "${T}"/eselect.cblas.gsl || die
if [[ ${CHOST} == *-darwin* ]] ; then
sed -i -e 's/\.so\([\.0-9]\+\)\?/\1.dylib/g' \
"${T}"/eselect.cblas.gsl || die
fi
}
src_configure() {
if use cblas-external; then
export CBLAS_LIBS="$($(tc-getPKG_CONFIG) --libs cblas)"
export CBLAS_CFLAGS="$($(tc-getPKG_CONFIG) --cflags cblas)"
fi
econf \
--enable-shared \
$(use_with cblas-external) \
$(use_enable static-libs static)
}
src_test() {
emake -j1 check
}
src_install() {
default
find "${ED}" -name '*.la' -exec rm -f {} + || die
# take care of pkgconfig file for cblas implementation.
sed -e "s/@LIBDIR@/$(get_libdir)/" \
-e "s/@PV@/${PV}/" \
-e "/^prefix=/s:=:=${EPREFIX}:" \
-e "/^libdir=/s:=:=${EPREFIX}:" \
"${FILESDIR}"/cblas.pc.in > cblas.pc \
|| die "sed cblas.pc failed"
insinto /usr/$(get_libdir)/blas/gsl
doins cblas.pc
eselect cblas add $(get_libdir) "${T}"/eselect.cblas.gsl \
${ESELECT_PROF}
}
pkg_postinst() {
local p=cblas
local current_lib=$(eselect ${p} show | cut -d' ' -f2)
if [[ ${current_lib} == ${ESELECT_PROF} || -z ${current_lib} ]]; then
# work around eselect bug #189942
local configfile="${EROOT}"/etc/env.d/${p}/$(get_libdir)/config
[[ -e ${configfile} ]] && rm -f ${configfile}
eselect ${p} set ${ESELECT_PROF}
elog "${p} has been eselected to ${ESELECT_PROF}"
else
elog "Current eselected ${p} is ${current_lib}"
elog "To use ${p} ${ESELECT_PROF} implementation, you have to issue (as root):"
elog "\t eselect ${p} set ${ESELECT_PROF}"
fi
}
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