[gtkmm] Cursor: Do not try to derive a GType.

[Murray Cumming <murrayc src gnome org>]

commit bfbd4b11877006753eef7d43b922ef5628be36c1
Author: Murray Cumming <murrayc murrayc com>
Date:   Wed Dec 22 12:01:53 2010 +0100

    Cursor: Do not try to derive a GType.
    
    	* gdk/src/cursor.hg: Use the (undocumented?) _DO_NOT_DERIVE_GTYPE macro
    	to avoid deriving a GType, because we get this warning when we try:
    	cannot derive `gtkmm__GdkCursor' from non-fundamental parent type `GdkCursor'
      We do not need to anyway, because there are no properties or signals.

 ChangeLog         |    9 +++++++++
 gdk/src/cursor.hg |    1 +
 2 files changed, 10 insertions(+), 0 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 7433ec6..15c2ced 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,14 @@
 2010-12-22  Murray Cumming  <murrayc murrayc com>
 
+	Cursor: Do not try to derive a GType.
+
+	* gdk/src/cursor.hg: Use the (undocumented?) _DO_NOT_DERIVE_GTYPE macro
+	to avoid deriving a GType, because we get this warning when we try:
+	cannot derive `gtkmm__GdkCursor' from non-fundamental parent type `GdkCursor' 
+  We do not need to anyway, because there are no properties or signals.
+  
+2010-12-22  Murray Cumming  <murrayc murrayc com>
+
 	Fix the build with latest GTK+.
 
 	* gdk/src/gdk_methods.defs: Regenerated with h2defs.py.
diff --git a/gdk/src/cursor.hg b/gdk/src/cursor.hg
index a1fd54f..1f14ced 100644
--- a/gdk/src/cursor.hg
+++ b/gdk/src/cursor.hg
@@ -37,6 +37,7 @@ _WRAP_ENUM(CursorType, GdkCursorType)
 class Cursor : public Glib::Object
 {
   _CLASS_GOBJECT(Cursor, GdkCursor, GDK_CURSOR, Glib::Object, GObject)
+  _DO_NOT_DERIVE_GTYPE //We use DO_NOT_DERIVE_GTYPE because glib does not allow us to derive from a non-fundamental (abstract) type, for some reason.
   _IGNORE(gdk_cursor_ref, gdk_cursor_unref) //deprecated
 
 public: