From 139945e587ca794b22939e251f652aaae673fc7f Mon Sep 17 00:00:00 2001
From: Martin Kroeker <martin@ruby.chemie.uni-freiburg.de>
Date: Wed, 22 Jun 2022 18:44:25 +0200
Subject: [PATCH] Set visibility of internal symbols to hidden

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

diff --git a/driver/level2/tpmv_U.c b/driver/level2/tpmv_U.c
index 4f21c5318..7ec0828f8 100644
--- a/driver/level2/tpmv_U.c
+++ b/driver/level2/tpmv_U.c
@@ -42,7 +42,11 @@
 
 // const static FLOAT dp1 = 1.;
 
-int CNAME(BLASLONG m, FLOAT *a, FLOAT *b, BLASLONG incb, void *buffer){
+int
+#ifndef C_MSVC
+__attribute__((visibility("hidden")))
+#endif
+      CNAME(BLASLONG m, FLOAT *a, FLOAT *b, BLASLONG incb, void *buffer){
 
   BLASLONG i;
   FLOAT *B = b;