[gtk/gtk-3-24] Add a 3.24 version

[Matthias Clasen <matthiasc src gnome org>]

commit 19b9659cce4c767988bda52bcbf8fec4b072cc6b
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Jun 4 07:16:35 2018 -0400

    Add a 3.24 version

 gdk/gdkversionmacros.h.in | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
---
diff --git a/gdk/gdkversionmacros.h.in b/gdk/gdkversionmacros.h.in
index bc2365df3d..410abcbe6a 100644
--- a/gdk/gdkversionmacros.h.in
+++ b/gdk/gdkversionmacros.h.in
@@ -172,6 +172,16 @@
  */
 #define GDK_VERSION_3_22        (G_ENCODE_VERSION (3, 22))
 
+/**
+ * GDK_VERSION_3_24:
+ *
+ * A macro that evaluates to the 3.24 version of GDK, in a format
+ * that can be used by the C pre-processor.
+ *
+ * Since: 3.24
+ */
+#define GDK_VERSION_3_24        (G_ENCODE_VERSION (3, 24))
+
 /* evaluates to the current stable version; for development cycles,
  * this means the next stable target
  */
@@ -412,5 +422,11 @@
 # define GDK_AVAILABLE_IN_3_22                _GDK_EXTERN
 #endif
 
+#if GDK_VERSION_MAX_ALLOWED < GDK_VERSION_3_24
+# define GDK_AVAILABLE_IN_3_24                GDK_UNAVAILABLE(3, 24)
+#else
+# define GDK_AVAILABLE_IN_3_24                _GDK_EXTERN
+#endif
+
 #endif  /* __GDK_VERSION_MACROS_H__ */