Why keysym constants in gdk/gdkkeysyms.h are defined as macros, not as an enum?

[Mark Vender <markv743 yahoo co uk>]

Hello,

Is there any reason why preprocessor macros are used to define the GDK 
keysym constants in gdk/gdkkeysyms.h instead of an enum? For what it's 
worth, there's no advantage in using macros. They are inconsistent with 
other enumerations within GTK+ library, which universally use enums. An 
enum offers better scoping and would be easier to wrap on the C++ side.

If there's support, I could prepare a patch that converts the keysym 
macros to an enum. From the user's point of view enum and macro 
constants are equivalent, so there's no need to wait for an API/ABI break.

Cheers,
Mark