With the integration of PSARC/2009/444 Add daemon() to libc 4471189 should have 4.4BSD's daemon() utility function
libc contains the classical daemon() implementation which originated in BSD. This change also removed several redundant daemon() definitions in ON but there are still some occurrences of functions which provide the same functionality so now it's good time to look at them and optionally replace them with a call to daemon(). Non-ON programs should also do the right thing and use the implementation in libc, if possible. This usually means to check for its existence in the configure script and wrap the alternative definition inside the '#ifndef HAVE_DAEMON ... #endif' macros. v.
