diff -puNr gimp-2.2.11.orig/plug-ins/common/png.c gimp-2.2.11/plug-ins/common/png.c
--- gimp-2.2.11.orig/plug-ins/common/png.c	2004-11-23 15:28:43.000000000 +0100
+++ gimp-2.2.11/plug-ins/common/png.c	2006-04-15 12:15:58.000000000 +0200
@@ -1012,12 +1012,10 @@ load_image (const gchar *filename,
    * Done with the file...
    */
 
-  png_read_destroy (pp, info, NULL);
+  png_destroy_read_struct (&pp, &info, NULL);
 
   g_free (pixel);
   g_free (pixels);
-  free (pp);
-  free (info);
 
   fclose (fp);
 
@@ -1441,7 +1439,7 @@ save_image (const gchar *filename,
     };
 
   png_write_end (pp, info);
-  png_write_destroy (pp);
+  png_destroy_write_struct (&pp, &info);
 
   g_free (pixel);
   g_free (pixels);
@@ -1456,9 +1454,6 @@ save_image (const gchar *filename,
       g_free (text);
     }
 
-  free (pp);
-  free (info);
-
   fclose (fp);
 
   return (1);