X-Git-Url: https://git.ralfj.de/gltest.git/blobdiff_plain/8dd990b1ed5cb3a4b78dfdf48b1f39d3f8bb0f0f..b4dc0596570275aa9def5ff63af951beb8473d58:/glutil_gl2.cpp

diff --git a/glutil_gl2.cpp b/glutil_gl2.cpp
index c14b3a5..ad89138 100644
--- a/glutil_gl2.cpp
+++ b/glutil_gl2.cpp
@@ -18,8 +18,13 @@
 
 #include <stdio.h>
 #include <stdlib.h>
+
 #include "glutil.h"
 
+#if defined(CON_GL1)
+#error "GL1 contexts do not support GL2 functionality"
+#endif
+
 // shaders
 static const char *vertex_shader_source =
 "#version 100 \n\