1.7.9-1: kill( pid, 0 ) on child before waitpid returns -1.

[Andy Koppe]

2011/4/2 Marcin Konarski:
> Subject says it all.

Nope, it doesn't actually. Explaining why it's wrong would have been
nice. Here's the relevant bit from POSIX:

"Existing implementations vary on the result of a kill() with pid
indicating an inactive process (a terminated process that has not been
waited for by its parent). Some indicate success on such a call
(subject to permission checking), while others give an error of
[ESRCH]. Since the definition of process lifetime in this volume of
IEEE Std 1003.1-2001 covers inactive processes, the [ESRCH] error as
described is inappropriate in this case."

Andy

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