From f40aaca406c3553317d3e03c008840f095be5790 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luis=20Pe=C3=B1aranda?= <luis.penaranda@gmx.com>
Date: Fri, 25 Jan 2013 15:25:21 -0200
Subject: [PATCH] require glew only on mac

---
 openglcanvas.cpp | 4 +++-
 openglcanvas.h   | 8 +++++---
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/openglcanvas.cpp b/openglcanvas.cpp
index d61036b..566ea51 100644
--- a/openglcanvas.cpp
+++ b/openglcanvas.cpp
@@ -593,12 +593,14 @@ void OpenGLCanvas::setShaders() {
 
     char *vs,*fs;
 
-#ifdef GLEW_VERSION_1_5
+#ifndef __APPLE__
+  #ifdef GLEW_VERSION_1_5
     GLenum err=glewInit();
     if(err!=GLEW_OK){
         fprintf(stderr,"error in GLEW initialization: %s\n",glewGetString(err));
         exit(-1);
     }
+  #endif
 #endif
 
     GLuint v = glCreateShader(GL_VERTEX_SHADER);
diff --git a/openglcanvas.h b/openglcanvas.h
index 2ca440f..c13215f 100644
--- a/openglcanvas.h
+++ b/openglcanvas.h
@@ -1,10 +1,12 @@
 #ifndef OPENGLCANVAS_H
 #define OPENGLCANVAS_H
 
-// GLew might not be needed if a recent version of OpenGL is present
-#include <GL/glew.h>
-#if (!defined GLEW_VERSION_1_5) || (!defined GL_VERSION_3_1)
+// GLew might not be needed on mac, or if a recent version of OpenGL is present
+#ifndef __APPLE__
+  #include <GL/glew.h>
+  #if (!defined GLEW_VERSION_1_5) || (!defined GL_VERSION_3_1)
     #error GLEW 1.5.2 is required
+  #endif
 #endif
 
 #define GL_GLEXT_PROTOTYPES 1
-- 
GitLab