From 5dc6aa74f05cc6c4405be195461fa5afc2c03888 Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Fri, 30 Jul 2021 14:46:19 +0200
Subject: [PATCH] Disable gfortran tree vectorizer to avoid gcc11+
 miscompilation at O3

---
 test/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/test/Makefile b/test/Makefile
index 6c5f041c2..923f1537c 100644
--- a/test/Makefile
+++ b/test/Makefile
@@ -1,6 +1,8 @@
 TOPDIR	= ..
 include ../Makefile.system
-
+ifeq ($(F_COMPILER),GFORTRAN)
+        override FFLAGS += -fno-tree-vectorize
+endif
 
 ifeq ($(NOFORTRAN),1)
 all ::