From 7b7c336f32dfced85cc2c0a1c9662bf552697523 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Esser?= <besser82@fedoraproject.org>
Date: Tue, 13 Jul 2021 20:42:28 +0200
Subject: [PATCH] Properly set BLA_VENDOR to FlexiBLAS for cmake >= 3.19

---
 eigen3.spec | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/eigen3.spec b/eigen3.spec
index ce0a853..d73861d 100644
--- a/eigen3.spec
+++ b/eigen3.spec
@@ -10,10 +10,13 @@
 %endif
 
 
-%if 0%{?fedora} >= 33
+%if 0%{?fedora} >= 33 || 0%{?rhel} >= 9
 %global blaslib flexiblas
+%global cmake_blas_flags -DBLA_VENDOR=FlexiBLAS
 %else
 %global blaslib openblas
+%global blasvar o
+%global cmake_blas_flags -DBLAS_LIBRARIES=%{_libdir}/lib%{blaslib}%{blasvar}.so
 %endif
 
 %if 0%{?rhel} >= 8
@@ -24,7 +27,7 @@
 
 Name:           eigen3
 Version:        3.3.9
-Release:        5%{?dist}
+Release:        6%{?dist}
 Summary:        A lightweight C++ template library for vector and matrix math
 
 License:        MPLv2.0 and LGPLv2+ and BSD and Minpack
@@ -89,7 +92,7 @@ Developer documentation for Eigen.
 %build
 %cmake \
     -DINCLUDE_INSTALL_DIR=include/%{name} \
-    -DBLAS_LIBRARIES="-l%{blaslib}" \
+    %{cmake_blas_flags} \
     -DSUPERLU_INCLUDES=%{_includedir}/SuperLU \
     -DSCOTCH_INCLUDES=%{_includedir} -DSCOTCH_LIBRARIES="scotch" \
     -DMETIS_INCLUDES=%{_includedir} -DMETIS_LIBRARIES="metis" \
@@ -124,6 +127,9 @@ rm -f %{_vpath_builddir}/doc/html/unsupported/installdox
 
 
 %changelog
+* Tue Jul 13 2021 Björn Esser <besser82@fedoraproject.org> - 3.3.9-6
+- Properly set BLA_VENDOR to FlexiBLAS for cmake >= 3.19
+
 * Wed Jun 02 2021 Jiri Kucera <jkucera@redhat.com> - 3.3.9-5
 - Add missing Minpack license
   Resolves: #1965214