From c84cc07add2d8a5351d07e6797e8fd7c24e4af21 Mon Sep 17 00:00:00 2001
From: Mo Zhou <cdluminate@gmail.com>
Date: Thu, 11 Jul 2019 02:53:07 +0000
Subject: [PATCH] sci-libs/openblas: add the missing postinst steps and
 maintainer.

Closes: https://github.com/gentoo/gentoo/pull/12422

Package-Manager: Portage-2.3.52, Repoman-2.3.12
Signed-off-by: Mo Zhou <cdluminate@gmail.com>
Signed-off-by: Benda Xu <heroxbd@gentoo.org>
---
 sci-libs/openblas/metadata.xml          |  4 +++
 sci-libs/openblas/openblas-0.3.5.ebuild | 40 ++++++++++++++++++-------
 2 files changed, 34 insertions(+), 10 deletions(-)

diff --git a/sci-libs/openblas/metadata.xml b/sci-libs/openblas/metadata.xml
index a5e019212f0d..987eb126d9c1 100644
--- a/sci-libs/openblas/metadata.xml
+++ b/sci-libs/openblas/metadata.xml
@@ -5,6 +5,10 @@
 		<email>sci@gentoo.org</email>
 		<name>Gentoo Science Project</name>
 	</maintainer>
+	<maintainer type="person">
+		<email>lumin@debian.org</email>
+		<name>Mo Zhou</name>
+	</maintainer>
 	<longdescription lang="en">
 		OpenBLAS is an optimized BLAS library based on GotoBLAS2 1.13 BSD version.
 	</longdescription>
diff --git a/sci-libs/openblas/openblas-0.3.5.ebuild b/sci-libs/openblas/openblas-0.3.5.ebuild
index b41803760ae9..ba14ee30b531 100644
--- a/sci-libs/openblas/openblas-0.3.5.ebuild
+++ b/sci-libs/openblas/openblas-0.3.5.ebuild
@@ -1,4 +1,4 @@
-# Copyright 1999-2017 Gentoo Foundation
+# Copyright 1999-2019 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
@@ -14,11 +14,11 @@ IUSE="dynamic openmp pthread serial static-libs eselect-ldso"
 REQUIRED_USE="?? ( openmp pthread serial )"
 
 RDEPEND="
->=app-eselect/eselect-blas-0.2
->=app-eselect/eselect-lapack-0.2
+eselect-ldso? ( >=app-eselect/eselect-blas-0.2
+				!app-eselect/eselect-cblas
+				>=app-eselect/eselect-lapack-0.2 )
 "
-DEPEND="${RDEPEND}
-	virtual/pkgconfig"
+DEPEND="virtual/pkgconfig"
 
 PATCHES=( "${FILESDIR}/shared-blas-lapack.patch" )
 
@@ -69,11 +69,31 @@ src_install () {
 }
 
 pkg_postinst () {
-	if use eselect-ldso; then
-		eselect blas add $(get_libdir) \
-			"${EROOT}"/usr/$(get_libdir)/blas/openblas openblas
-		eselect lapack add $(get_libdir) \
-			"${EROOT}"/usr/$(get_libdir)/lapack/openblas openblas
+	use eselect-ldso || return
+	local libdir=$(get_libdir) me="openblas"
+
+	# check blas
+	eselect blas add ${libdir} "${EROOT}"/usr/${libdir}/blas/${me} ${me}
+	local current_blas=$(eselect blas show ${libdir} | cut -d' ' -f2)
+	if [[ ${current_blas} == "${me}" || -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
+
+	# check lapack
+	eselect lapack add ${libdir} "${EROOT}"/usr/${libdir}/lapack/${me} ${me}
+	local current_lapack=$(eselect lapack show ${libdir} | cut -d' ' -f2)
+	if [[ ${current_lapack} == "${me}" || -z ${current_lapack} ]]; then
+		eselect lapack set ${libdir} ${me}
+		elog "Current eselect: LAPACK ($libdir) -> [${current_lapack}]."
+	else
+		elog "Current eselect: LAPACK ($libdir) -> [${current_lapack}]."
+		elog "To use lapack [${me}] implementation, you have to issue (as root):"
+		elog "\t eselect lapack set ${libdir} ${me}"
 	fi
 }
 
-- 
2.26.2