[PATCH 2/3] posix: Improve default posix_spawn implementation

[Andreas Schwab]

On Jul 03 2017, Adhemerval Zanella <adhemerval.zanella@linaro.org> wrote:

> My understanding is POSIX is not strictly regarding spurious errno writes,
> but on general information [1] it has the rationale:
>
> "In order to avoid this problem altogether for new functions, these 
> functions avoid using errno and, instead, return the error number directly 
> as the function return value; a return value of zero indicates that no 
> error was detected."

It also notes (in section Signal Actions):

"Note in particular that even the "safe'' functions may modify the global
variable errno"

Andreas.

-- 
Andreas Schwab, SUSE Labs, schwab@suse.de
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