#include <config.h>
#include <gtk/gtk.h>
+#include <gtk/gtkgl.h>
#include <gdk/gdkkeysyms.h>
#include "gis.h"
g_thread_init(NULL);
gdk_threads_init();
gtk_init(&argc, &argv);
+ gtk_gl_init(&argc, &argv);
prefs = gis_prefs_new(NULL, NULL);
plugins = gis_plugins_new(g_getenv("GIS_PLUGIN_PATH"), prefs);