[Cogl] [PATCH] Don't use the internal _G_DEFINE_TYPE_EXTENDED_CLASS_INIT macro

[Neil Roberts]

This macro is internal to gobject so using it risks breaking Cogl if
glib changes its API. Instead we just use its expansion. Note that
glib provides two expansions for this depending on the glib version
but this only uses the one for older versions.
---
 cogl/cogl-gtype-private.h | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/cogl/cogl-gtype-private.h b/cogl/cogl-gtype-private.h
index 21590da..03832ef 100644
--- a/cogl/cogl-gtype-private.h
+++ b/cogl/cogl-gtype-private.h
@@ -191,7 +191,12 @@ cogl_##name##_get_gtype (void)                                      \
   static gpointer name##_parent_class = NULL;                           \
   static gint     Name##_private_offset;                                \
                                                                         \
-  _G_DEFINE_TYPE_EXTENDED_CLASS_INIT(Name, name)                        \
+  static void                                                           \
+  name##_class_intern_init (gpointer klass)                             \
+  {                                                                     \
+    name##_parent_class = g_type_class_peek_parent (klass);             \
+    name##_class_init ((Name##Class*) klass);                           \
+  }                                                                     \
                                                                         \
   static inline gpointer                                                \
   name##_get_instance_private (Name *self)                              \
-- 
1.8.5.3