From 6f9567742711dbd929ab6df7eb2caf01ab6325e0 Mon Sep 17 00:00:00 2001
From: ddelange <14880945+ddelange@users.noreply.github.com>
Date: Tue, 18 Apr 2023 12:00:10 +0200
Subject: [PATCH] Explicit -lopenblas

---
 m4/ax_cblas.m4 | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/m4/ax_cblas.m4 b/m4/ax_cblas.m4
index 0e0d68d3..da89cab9 100644
--- a/m4/ax_cblas.m4
+++ b/m4/ax_cblas.m4
@@ -152,12 +152,17 @@ if test $ax_cblas_ok = no; then
             [], [-lblas])])
 fi
 
+# BLAS in OpenBLAS library?
+if test $ax_cblas_ok = no; then
+    AC_CHECK_LIB(openblas, cblas_dgemm, [ax_cblas_ok=yes; CBLAS_LIBS="-lopenblas"])
+fi
+
 # Generic CBLAS library?
 if test $ax_cblas_ok = no; then
     AC_CHECK_LIB(cblas, cblas_dgemm, [ax_cblas_ok=yes; CBLAS_LIBS="-lcblas"])
 fi
 
-# Generic BLAS library? (for instance OpenBLAS)
+# Generic BLAS library?
 if test $ax_cblas_ok = no; then
     AC_CHECK_LIB(blas, cblas_dgemm, [ax_cblas_ok=yes; CBLAS_LIBS="-lblas"])
 fi