[gegl] gegl-op.h: use mutable values

[Massimo Valentini <mvalentini src gnome org>]

commit c11ac68a9b1b6e004b02e41e7d519a4ca3b0c0b0
Author: Massimo Valentini <mvalentini src gnome org>
Date:   Sat May 24 20:17:14 2014 +0200

    gegl-op.h: use mutable values

 gegl/gegl-op.h |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/gegl/gegl-op.h b/gegl/gegl-op.h
index 7cc6bb4..35e78e2 100644
--- a/gegl/gegl-op.h
+++ b/gegl/gegl-op.h
@@ -278,7 +278,7 @@ GType enum_name ## _get_type (void)               \
 {                                                 \
   static GType etype = 0;                         \
   if (etype == 0) {                               \
-    static const GEnumValue values[] = {
+    static GEnumValue values[] = {
 
 #define enum_value(value, nick, name)                \
       { value, name, nick },