tests: test some of the *-safer modules * modules/fopen-safer (Depends-on): Add fopen. * modules/fcntl-safer (Depends-on): Add fcntl. * modules/stdlib-safer (Depends-on): Add stdlib. (configure.ac): Set indicator. * modules/unistd-safer (configure.ac): Likewise. * modules/tmpfile-safer (configure.ac): Likewise. (Depends-on): Add tmpfile. * lib/stdio--.h (fopen, tmpfile): Don't override unless module is active. * tests/test-fopen.c (includes): Test safer versions when they are in use. * tests/test-open.c (includes): Likewise. Signed-off-by: Eric Blake <ebb9@byu.net>

--- a/tests/test-fopen.c
+++ b/tests/test-fopen.c
@@ -1,5 +1,5 @@
 /* Test of opening a file stream.
-   Copyright (C) 2007-2008 Free Software Foundation, Inc.
+   Copyright (C) 2007-2009 Free Software Foundation, Inc.
 
    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
@@ -21,6 +21,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 
+#if GNULIB_FOPEN_SAFER
+# include "stdio--.h"
+#endif
+
 #define ASSERT(expr) \
   do									     \
     {									     \