[gtk+] gtk/queryimmodules.c: Make the output deterministic.

[Matthias Clasen <matthiasc src gnome org>]

commit edd1b0974c5e1d71f66daf6ad6457f5f6a83da71
Author: Chris Lamb <chris chris-lamb co uk>
Date:   Fri Aug 25 16:24:38 2017 +0100

    gtk/queryimmodules.c: Make the output deterministic.
    
    Whilst working on the Reproducible Builds effort [0], we noticed that
    queryimmodules generates non-reproducible output as it iterates over the
    filesystem without sorting.
    
    Patch attached.
    
     [0] https://reproducible-builds.org/
    
    Signed-off-by: Chris Lamb <lamby debian org>
    
    https://bugzilla.gnome.org/show_bug.cgi?id=786528

 gtk/queryimmodules.c |   10 ++++++++--
 1 files changed, 8 insertions(+), 2 deletions(-)
---
diff --git a/gtk/queryimmodules.c b/gtk/queryimmodules.c
index fab90fe..c7c5c94 100644
--- a/gtk/queryimmodules.c
+++ b/gtk/queryimmodules.c
@@ -195,13 +195,19 @@ int main (int argc, char **argv)
             if (dir)
               {
                 const char *dent;
+                GList *list = NULL, *iterator = NULL;
 
                 while ((dent = g_dir_read_name (dir)))
+                  list = g_list_prepend (list, g_strdup (dent));
+
+                list = g_list_sort (list, (GCompareFunc) strcmp);
+                for (iterator = list; iterator; iterator = iterator->next)
                   {
-                    if (g_str_has_suffix (dent, SOEXT))
-                      error |= query_module (dirs[i], dent, contents);
+                    if (g_str_has_suffix (iterator->data, SOEXT))
+                      error |= query_module (dirs[i], iterator->data, contents);
                   }
 
+                g_list_free_full (list, g_free);
                 g_dir_close (dir);
               }