[mutter] src/core/util.c: Fix warning in case WITH_VERBOSE_MODE is not set

[Owen Taylor <otaylor src gnome org>]

commit 2b84afc1e3a6c824d4e767eb388398e5ac37b06a
Author: Andreas Mueller <schnitzeltony gmx de>
Date:   Mon Jul 12 13:14:26 2010 +0200

    src/core/util.c: Fix warning in case WITH_VERBOSE_MODE is not set
    
    Signed-off-by: Andreas Mueller <schnitzeltony gmx de>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=624166

 src/core/util.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/core/util.c b/src/core/util.c
index 507ffa7..dd3bae2 100644
--- a/src/core/util.c
+++ b/src/core/util.c
@@ -40,11 +40,12 @@
 #include <X11/Xlib.h>   /* must explicitly be included for Solaris; #326746 */
 #include <X11/Xutil.h>  /* Just for the definition of the various gravities */
 
+#ifdef WITH_VERBOSE_MODE
 static void
 meta_topic_real_valist (MetaDebugTopic topic,
                         const char    *format,
                         va_list        args);
-
+#endif
 
 #ifdef HAVE_BACKTRACE
 #include <execinfo.h>