From c842f0b8b5f76648e73f2b8b9d6cb77b7321f16b Mon Sep 17 00:00:00 2001
From: wmayer <wmayer@users.sourceforge.net>
Date: Thu, 16 Aug 2018 01:50:54 +0200
Subject: [PATCH] fix build failure if pch is on

---
 src/Gui/GLBuffer.cpp | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/Gui/GLBuffer.cpp b/src/Gui/GLBuffer.cpp
index 5b86a04d9536..2e810c593415 100644
--- a/src/Gui/GLBuffer.cpp
+++ b/src/Gui/GLBuffer.cpp
@@ -27,16 +27,14 @@
 #define GL_GLEXT_PROTOTYPES
 #endif
 
-#ifndef _PreComp_
-# ifdef FC_OS_MACOSX
+#ifdef FC_OS_MACOSX
 # include <OpenGL/gl.h>
 # include <OpenGL/glu.h>
 # include <OpenGL/glext.h>
-# else
+#else
 # include <GL/gl.h>
 # include <GL/glu.h>
 # include <GL/glext.h>
-# endif
 #endif
 
 #include <Inventor/elements/SoGLCacheContextElement.h>