Revert "Switch from GtkGLExt to internal OpenGL handling"

[grits] / src / objects / grits-volume.c

diff --git a/src/objects/grits-volume.c b/src/objects/grits-volume.c
index 2579600046dc1575afb0f95aa01d9a1582d20686..d2ec235034889edf3476a479f7ccda7be0637050 100644 (file)
--- a/src/objects/grits-volume.c
+++ b/src/objects/grits-volume.c
@@ -30,6 +30,7 @@
 #include <math.h>
 #include <glib.h>
 #include <GL/gl.h>
+#include <gdk/gdkgl.h>
 #include "grits-volume.h"
 
 /* Drawing */