- freopen ("/dev/null", "w", stdout);
- freopen ("/dev/null", "w", stderr);
+ if (freopen ("/dev/null", "w", stdout) == NULL) {
+ advise ("stdout", "freopen");
+ }
+ if (freopen ("/dev/null", "w", stderr) == NULL) {
+ advise ("stderr", "freopen");
+ }