[gtk+] gdkversionmacros.h: add GDK_AVAILABLE_IN_ALL

[Matthias Clasen <matthiasc src gnome org>]

commit baab7acf08a93531b2352f77f911bfffb013c0df
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu Mar 14 21:22:22 2013 -0400

    gdkversionmacros.h: add GDK_AVAILABLE_IN_ALL
    
    Add a macro to declare that a particular symbol is available in all
    versions of GTK+.
    
    All newly-added symbols should have proper version macros (like
    GDK_AVAILABLE_IN_3_4).

 gdk/gdkversionmacros.h.in |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/gdk/gdkversionmacros.h.in b/gdk/gdkversionmacros.h.in
index 38cf70d..d083f79 100644
--- a/gdk/gdkversionmacros.h.in
+++ b/gdk/gdkversionmacros.h.in
@@ -179,6 +179,8 @@
 #error "GDK_VERSION_MIN_REQUIRED must be >= GDK_VERSION_3_0"
 #endif
 
+#define GDK_AVAILABLE_IN_ALL
+
 /* XXX: Every new stable minor release should add a set of macros here */
 
 #if GDK_VERSION_MIN_REQUIRED >= GDK_VERSION_3_0