Fixed pregap regression failure on non-Intel architectures, removed warnings

test/testpregap.c.in

@@ -1,5 +1,5 @@
 /*
-  $Id: testpregap.c.in,v 1.1 2008/05/05 23:58:28 rocky Exp $
+  $Id: testpregap.c.in,v 1.2 2008/06/10 00:45:09 pjcreath Exp $
 
   Copyright (C) 2003, 2004, 2005 Rocky Bernstein <rocky@gnu.org>
   Copyright (C) 2008 Robert W. Fuller <hydrologiccycle@gmail.com>
@@ -57,7 +57,7 @@ log_handler (cdio_log_level_t level, const char message[])
 
 typedef struct _pregap_list_t {
 
-  char *image;
+  const char *image;
   track_t track;
   lsn_t pregap;
 
@@ -83,7 +83,7 @@ int
 main(int argc, const char *argv[])
 {
   CdIo_t *cdObj;
-  char *image;
+  const char *image;
   lsn_t pregap;
   int i;
   int rc = 0;