#--- allegro-5.0.10/include/allegro5/opengl/GLext/glx_ext_api.h.orig	2010-04-22 14:52:57.000000000 +0200
#+++ allegro-5.0.10/include/allegro5/opengl/GLext/glx_ext_api.h	2013-12-07 10:19:27.649747540 +0100
#@@ -61,6 +61,7 @@
# 
# #ifdef _ALLEGRO_GLX_EXT_import_context
# /* GLX_EXT_import_context */
#+typedef XID GLXContextID;
# AGL_API(Display *, GetCurrentDisplayEXT, (void))
# AGL_API(int, QueryContextInfoEXT, (Display *, GLXContext, int, int *))
# AGL_API(GLXContextID, GetContextIDEXT, (const GLXContext))
--- allegro-5.0.10/include/allegro5/opengl/gl_ext.h.orig	2013-12-07 11:15:41.336272630 +0100
+++ allegro-5.0.10/include/allegro5/opengl/gl_ext.h	2013-12-07 11:16:40.576270143 +0100
@@ -15,6 +15,10 @@
    #undef GL_WIN_draw_range_elements
 #endif
 
+#include <X11/X.h>
+/* for GLX_EXT_import_context */
+typedef XID GLXContextID;
+
 /* GL extension definitions. */
 
 /* For example: