use gl.h to generate the *.in files. we are now supporting the full gl.h and glext.h apis.
diff --git a/opengl/libs/hooks.h b/opengl/libs/hooks.h
index 392724f..fd97254 100644
--- a/opengl/libs/hooks.h
+++ b/opengl/libs/hooks.h
@@ -77,6 +77,7 @@
 struct gl_hooks_t {
     struct gl_t {
         #include "gl_entries.in"
+        #include "glext_entries.in"
     } gl;
     struct egl_t {
         #include "egl_entries.in"