How can I check if fork() is available?

Is it sufficient to check for $Config{d_fork}?  Or do I need to check
$Config{d_vfork}?  Are these mutually exclusive?  Anything else I
should be aware of?

Thanks,
David

• How can I check if fork() is available? by David Golden
• RE: How can I check if fork() is available? by Jan Dubois
• Re: How can I check if fork() is available? by David Golden