From 1026670c08c3b7bbc801565e9f36feb8e15fcc50 Mon Sep 17 00:00:00 2001
From: Mo Zhou <cdluminate@gmail.com>
Date: Mon, 22 Jul 2019 11:47:17 +0000
Subject: sci-libs/openblas-0.3.6: add index-64bit support.

Closes: https://github.com/gentoo/gentoo/pull/12475

Signed-off-by: Mo Zhou <cdluminate@gmail.com>
Signed-off-by: Benda Xu <heroxbd@gentoo.org>
---
 sci-libs/openblas/metadata.xml          |  1 +
 sci-libs/openblas/openblas-0.3.6.ebuild | 18 +++++++++++++++---
 2 files changed, 16 insertions(+), 3 deletions(-)

(limited to 'sci-libs/openblas')

diff --git a/sci-libs/openblas/metadata.xml b/sci-libs/openblas/metadata.xml
index 987eb126d9c1..95b34d1ccda3 100644
--- a/sci-libs/openblas/metadata.xml
+++ b/sci-libs/openblas/metadata.xml
@@ -17,6 +17,7 @@
 		<flag name="pthread">Build with pthread threadding model</flag>
 		<flag name="serial">Build without multi-thraedding</flag>
 		<flag name="eselect-ldso">Enable BLAS/LAPACK runtime switching</flag>
+		<flag name="index-64bit">Compile a separate INTERFACE64 OpenBLAS</flag>
 	</use>
 	<upstream>
 		<remote-id type="github">xianyi/OpenBLAS</remote-id>
diff --git a/sci-libs/openblas/openblas-0.3.6.ebuild b/sci-libs/openblas/openblas-0.3.6.ebuild
index ba14ee30b531..19c3b79f2584 100644
--- a/sci-libs/openblas/openblas-0.3.6.ebuild
+++ b/sci-libs/openblas/openblas-0.3.6.ebuild
@@ -2,6 +2,7 @@
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=7
+inherit toolchain-funcs
 
 DESCRIPTION="Optimized BLAS library based on GotoBLAS2"
 HOMEPAGE="http://xianyi.github.com/OpenBLAS/"
@@ -10,7 +11,7 @@ SRC_URI="https://github.com/xianyi/OpenBLAS/tarball/v${PV} -> ${P}.tar.gz"
 LICENSE="BSD"
 SLOT="0"
 KEYWORDS="~amd64 ~x86 ~amd64-linux ~x86-linux ~x64-macos ~x86-macos"
-IUSE="dynamic openmp pthread serial static-libs eselect-ldso"
+IUSE="dynamic openmp pthread serial static-libs eselect-ldso index-64bit"
 REQUIRED_USE="?? ( openmp pthread serial )"
 
 RDEPEND="
@@ -27,6 +28,7 @@ openblas_flags() {
 	use dynamic && \
 		flags+=( DYNAMIC_ARCH=1 TARGET=GENERIC NUM_THREADS=64 NO_AFFINITY=1 )
 	if use openmp; then
+		tc-check-openmp
 		flags+=( USE_THREAD=1 USE_OPENMP=1 )
 	elif use pthread; then
 		flags+=( USE_THREAD=1 USE_OPENMP=0 )
@@ -41,13 +43,18 @@ openblas_flags() {
 
 src_unpack () {
 	default
-	find "${WORKDIR}" -maxdepth 1 -type d -name \*OpenBLAS\* && \
-		mv "${WORKDIR}"/*OpenBLAS* "${S}" || die
+	mv "${WORKDIR}"/*OpenBLAS* "${S}" || die
+	if use index-64bit; then
+		cp -aL "${S}" "${S}-index-64bit" || die
+	fi
 }
 
 src_compile () {
 	emake $(openblas_flags)
 	emake -Cinterface shared-blas-lapack $(openblas_flags)
+	if use index-64bit; then
+		emake -C"${S}-index-64bit" $(openblas_flags) INTERFACE64=1 LIBPREFIX=libopenblas64
+	fi
 }
 
 src_install () {
@@ -66,6 +73,11 @@ src_install () {
 		doins interface/liblapack.so.3
 		dosym liblapack.so.3 usr/$(get_libdir)/lapack/openblas/liblapack.so
 	fi
+
+	if use index-64bit; then
+		insinto /usr/$(get_libdir)/
+		dolib.so "${S}-index-64bit"/libopenblas64*.so*
+	fi
 }
 
 pkg_postinst () {
-- 
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