From 2f1ce58cf40c902c451813552307995bdd0bdea1 Mon Sep 17 00:00:00 2001
From: Orion Poplawski <orion@cora.nwra.com>
Date: Wed, 15 Mar 2017 15:34:32 -0600
Subject: [PATCH] Use %openblas_arches if available

---
 petsc.spec | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/petsc.spec b/petsc.spec
index 07f135a..54612ed 100644
--- a/petsc.spec
+++ b/petsc.spec
@@ -156,7 +156,8 @@ BuildRequires: MUMPS-devel
 BuildRequires: suitesparse-devel
 %endif
 %if %{with blas}
-%ifnarch x86_64 %{ix86} armv7hl %{power64} aarch64
+%{!?openblas_arches:%global openblas_arches x86_64 %{ix86} armv7hl %{power64} aarch64}
+%ifnarch %{openblas_arches}
 BuildRequires: blas-devel
 BuildRequires: lapack-devel
 %else