From 316352fa504ea079ba27f6e2d5475974a543d41f Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Thu, 30 Jun 2022 13:13:00 +0200
Subject: [PATCH] Base: [skip ci] fix slight regression caused with 13549473e

---
 src/Base/Builder3D.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/Base/Builder3D.cpp b/src/Base/Builder3D.cpp
index 7aa4ecacd9..b08df85ec6 100644
--- a/src/Base/Builder3D.cpp
+++ b/src/Base/Builder3D.cpp
@@ -172,7 +172,10 @@ void Builder3D::addText(const Base::Vector3f &vec,const char * text, float color
 
 void Builder3D::clear ()
 {
+  // under gcc stringstream::str() returns a copy not a reference
+#if defined(_MSC_VER)
   result.str().clear();
+#endif
   result.clear();
 }