Avoid non-portable signal(SIGCHLD, SIG_IGN)

[Joerg Wunsch]

[Sorry for the late reply.]

As Alexandre Julliard wrote:

> > Unfortunately, a general patch for this is beyond my (current)
> > capabilities, so I'd really appreciate could the two of you agree on
> > a general fix for this.
> 
> Does this do the right thing on FreeBSD?

> +    struct sigaction sig_act;
> +
> +    sig_act.sa_handler = SIG_IGN;
> +    sig_act.sa_flags   = 0;
> +    sigemptyset( &sig_act.sa_mask );
...
> +#ifdef SA_NOCLDWAIT
> +    sig_act.sa_flags |= SA_NOCLDWAIT;
> +#endif
> +    sigaction( SIGCHLD, &sig_act, NULL );

I didn't test that yet, but i think that should work.  If SA_NOCLDWAIT
is set (in a call for SIGCHLD), sa_handler ought to be ignored anyway.
-- 
cheers, J"org               .-.-.   --... ...--   -.. .  DL8DTL

http://www.sax.de/~joerg/                        NIC: JW11-RIPE
Never trust an operating system you don't have sources for. ;-)