sci-libs/blis: new BLIS package as an BLAS/CBLAS alternative.

Closes: https://github.com/gentoo/gentoo/pull/12322
Signed-off-by: Mo Zhou <cdluminate@gmail.com>
Signed-off-by: Benda Xu <heroxbd@gentoo.org>

1 files changed, 107 insertions, 0 deletions

diff --git a/sci-libs/blis/blis-0.5.2.ebuild b/sci-libs/blis/blis-0.5.2.ebuild
new file mode 100644
index 000000000000..939d0b608d65
--- /dev/null
+++ b/sci-libs/blis/blis-0.5.2.ebuild
@@ -0,0 +1,107 @@
+# Copyright 2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+inherit eutils
+
+DESCRIPTION="BLAS-like Library Instantiation Software Framework"
+HOMEPAGE="https://github.com/flame/blis"
+SRC_URI="https://github.com/flame/${PN}/archive/${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="BSD"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc64 ~x86"
+IUSE="openmp pthread serial static-libs eselect-ldso doc 64bit-index"
+REQUIRED_USE="?? ( openmp pthread serial ) ?? ( eselect-ldso 64bit-index )"
+
+RDEPEND="eselect-ldso? ( !app-eselect/eselect-cblas
+				   >=app-eselect/eselect-blas-0.2 )"
+
+DEPEND="${RDEPEND}
+	dev-lang/python
+"
+
+PATCHES=(
+	"${FILESDIR}/${P}-rpath.patch"
+	"${FILESDIR}/${P}-blas-provider.patch"
+	"${FILESDIR}/${P}-gh313.patch"
+)
+
+src_configure () {
+	local BLIS_FLAGS=()
+	local confname
+	# determine flags
+	if use openmp; then
+		BLIS_FLAGS+=( -t openmp )
+	elif use pthread; then
+		BLIS_FLAGS+=( -t pthreads )
+	else
+		BLIS_FLAGS+=( -t no )
+	fi
+	use 64bit-index && BLIS_FLAGS+=( -b 64 -i 64 )
+	# determine config name
+	case "${ARCH}" in
+		"x86" | "amd64")
+			confname=auto ;;
+		"ppc64")
+			confname=generic ;;
+		*)
+			confname=generic ;;
+	esac
+	# This is not an autotools configure file. We don't use econf here.
+	./configure \
+		--enable-verbose-make \
+		--prefix="${BROOT}"/usr \
+		--libdir="${BROOT}"/usr/$(get_libdir) \
+		$(use_enable static-libs static) \
+		--enable-blas \
+		--enable-cblas \
+		${BLIS_FLAGS[@]} \
+		--enable-shared \
+		$confname || die
+}
+
+src_compile() {
+	DEB_LIBBLAS=libblas.so.3 DEB_LIBCBLAS=libcblas.so.3 \
+		LDS_BLAS="${FILESDIR}"/blas.lds LDS_CBLAS="${FILESDIR}"/cblas.lds \
+		default
+}
+
+src_test () {
+	emake check
+}
+
+src_install () {
+	default
+	use doc && dodoc README.md docs/*.md
+
+	if use eselect-ldso; then
+		dodir /usr/$(get_libdir)/blas/blis
+		insinto /usr/$(get_libdir)/blas/blis
+		doins lib/*/lib{c,}blas.so.3
+		dosym libblas.so.3 usr/$(get_libdir)/blas/blis/libblas.so
+		dosym libcblas.so.3 usr/$(get_libdir)/blas/blis/libcblas.so
+	fi
+}
+
+pkg_postinst() {
+	use eselect-ldso || return
+
+	local libdir=$(get_libdir) me="blis"
+
+	# check blas
+	eselect blas add ${libdir} "${EROOT}"/usr/${libdir}/blas/${me} ${me}
+	local current_blas=$(eselect blas show ${libdir})
+	if [[ ${current_blas} == blis || -z ${current_blas} ]]; then
+		eselect blas set ${libdir} ${me}
+		elog "Current eselect: BLAS/CBLAS ($libdir) -> [${current_blas}]."
+	else
+		elog "Current eselect: BLAS/CBLAS ($libdir) -> [${current_blas}]."
+		elog "To use blas [${me}] implementation, you have to issue (as root):"
+		elog "\t eselect blas set ${libdir} ${me}"
+	fi
+}
+
+pkg_postrm() {
+	use eselect-ldso && eselect blas validate
+}