gtk: Make functions static that don't need to be non-static

Also remove the starting underscore from function names where
appropriate, as those functions are static now and not exported anymore.

This is part of a bunch of fixes for gcc complaining about
-Wmissing-declarations.

1 files changed, 3 insertions, 3 deletions

diff --git a/gtk/updateiconcache.c b/gtk/updateiconcache.c
index 2fe910b1bc..4159c9337a 100644
--- a/gtk/updateiconcache.c
+++ b/gtk/updateiconcache.c
@@ -88,9 +88,9 @@ static int check_dir_mtime (const char        *dir,
   return 0;
 }
 
- gboolean
- is_cache_up_to_date (const gchar *path)
- {
+static gboolean
+is_cache_up_to_date (const gchar *path)
+{
   gchar *cache_path;
   gint retval;