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bug#6430: Emacs WINDOWS truncates exit status of processes to 8 bits


From: Óscar Fuentes
Subject: bug#6430: Emacs WINDOWS truncates exit status of processes to 8 bits
Date: Thu, 16 Jun 2016 19:56:48 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.92 (gnu/linux)

Eli Zaretskii <eliz@gnu.org> writes:

>> The MS toolchain (to name just a case that we could expect to be used
>> from Emacs) outputs quite a few exit codes larger than 255.
>
> Any pointers to where these values are documented?

cl.exe, for instance, uses the codes in winerror.h for reporting
failures:

https://msdn.microsoft.com/en-us/library/ebh0y918.aspx

AFAIR it is a common practice among MS applications, and widely used by
Windows-only software vendors.





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