From af88494f8727404eef6f4adb4d3625d0b42cfb93 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Sun, 3 Jul 2022 18:23:51 +0200
Subject: [PATCH] old systems may not have inf in math.h

---
 utest/test_dnrm2.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/utest/test_dnrm2.c b/utest/test_dnrm2.c
index f710431d0..6c76c47c2 100644
--- a/utest/test_dnrm2.c
+++ b/utest/test_dnrm2.c
@@ -33,6 +33,11 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 #include "openblas_utest.h"
 #if defined(BUILD_DOUBLE)
+
+#ifndef INFINITY
+#define INFINITY HUGE_VALF
+#endif
+
 CTEST(dnrm2,dnrm2_inf)
 {
 	double x[29];