# Copyright 1999-2009 Gentoo Foundation # Distributed under the terms of the GNU General Public License v2 # $Header: /var/cvsroot/gentoo-x86/sci-libs/gsl/gsl-1.12.ebuild,v 1.8 2009/04/23 13:23:11 armin76 Exp $ EAPI=2 inherit eutils flag-o-matic autotools DESCRIPTION="The GNU Scientific Library" HOMEPAGE="http://www.gnu.org/software/gsl/" SRC_URI="mirror://gnu/${PN}/${P}.tar.gz" LICENSE="GPL-3" SLOT="0" KEYWORDS="alpha amd64 arm hppa ia64 ~mips ppc ppc64 s390 sh sparc x86 ~x86-fbsd" IUSE="cblas" RDEPEND="cblas? ( virtual/cblas )" DEPEND="${RDEPEND} app-admin/eselect-cblas dev-util/pkgconfig" pkg_setup() { ESELECT_PROF="gsl" # prevent to use external cblas from a previously installed gsl local current_lib=$(eselect cblas show | cut -d' ' -f2) if use cblas && [[ ${current_lib} == gsl ]]; then ewarn "USE flag cblas is set: linking gsl with an external cblas." ewarn "However the current selected external cblas is gsl." ewarn "Please install and/or eselect another cblas" die "Circular gsl dependency" fi } src_prepare() { filter-flags -ffast-math replace-cpu-flags k6 k6-2 k6-3 i586 epatch "${FILESDIR}"/${P}-cblas.patch eautoreconf } src_configure() { if use cblas; then export CBLAS_LIBS="$(pkg-config --libs cblas)" export CBLAS_CFLAGS="$(pkg-config --cflags cblas)" fi econf $(use_with cblas) } src_install() { emake install DESTDIR="${D}" || die "emake install failed." dodoc AUTHORS BUGS ChangeLog NEWS README SUPPORT \ THANKS TODO || die "dodoc failed" # take care of pkgconfig file for cblas implementation. sed -e "s/@LIBDIR@/$(get_libdir)/" \ -e "s/@PV@/${PV}/" \ "${FILESDIR}"/cblas.pc.in > cblas.pc \ || die "sed cblas.pc failed" insinto /usr/$(get_libdir)/blas/gsl doins cblas.pc || die "installing cblas.pc failed" eselect cblas add $(get_libdir) "${FILESDIR}"/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 ${current_lib} ]]; then # work around eselect bug #189942 local configfile="${ROOT}"/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 }