[PATCH] make Gtk2::Gdk->get_default_root_window() usable

[Thierry Vignaud <tvignaud mandrakesoft com>]

we do not have Gtk2::Gdk object, so get_default_root_window() *must*
not take any class parameters !!!!

fix below:

--- ./xs/GdkWindow.xs.tv	2003-07-07 14:13:21.000000000 +0200
+++ ./xs/GdkWindow.xs	2003-07-07 14:13:13.000000000 +0200
@@ -617,6 +617,6 @@
 
 MODULE = Gtk2::Gdk::Window	PACKAGE = Gtk2::Gdk	PREFIX = gdk_
 
-GdkWindow *gdk_get_default_root_window (SV * class)
+GdkWindow *gdk_get_default_root_window (void)
     C_ARGS:
 	/*void*/