Fix compilation warning: use const *gchar variable

https://bugzilla.gnome.org/show_bug.cgi?id=605090

diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index 35c236debaa56bc7e3b4bab5e4df8b3f065d53b3..eb380fa46c9c76548f58639cb21be56206cccb2f 100644 (file)
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -3850,7 +3850,7 @@ separate_uline_pattern (const gchar  *str,
                         gchar       **pattern)
 {
   gboolean underscore;
-  gchar *src;
+  const gchar *src;
   gchar *dest;
   gchar *pattern_dest;
 
@@ -3867,7 +3867,7 @@ separate_uline_pattern (const gchar  *str,
   while (*src)
     {
       gunichar c;
-      gchar *next_src;
+      const gchar *next_src;
 
       c = g_utf8_get_char (src);
       if (c == (gunichar)-1)