From 442e53b7df9227258cf911abef4782faa422f7ed Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Wed, 22 Jun 2022 18:36:54 +0200
Subject: [PATCH] Set visibility of internal symbols to hidden

---
 driver/level2/ztbmv_L.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/driver/level2/ztbmv_L.c b/driver/level2/ztbmv_L.c
index f50ba8141..49fb2c417 100644
--- a/driver/level2/ztbmv_L.c
+++ b/driver/level2/ztbmv_L.c
@@ -42,7 +42,11 @@
 
 // const static FLOAT dp1 = 1.;
 
-int CNAME(BLASLONG n, BLASLONG k, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
+int
+#ifndef C_MSVC
+__attribute__((visibility("hidden")))
+#endif
+	CNAME(BLASLONG n, BLASLONG k, FLOAT *a, BLASLONG lda, FLOAT *b, BLASLONG incb, void *buffer){
 
   BLASLONG i;
   FLOAT *B = b;