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Re: [PATCH v1] libacpi: use temporary files for generated files

On 27.10.2020 11:27, Olaf Hering wrote:
> Am Tue, 27 Oct 2020 11:16:04 +0100
> schrieb Jan Beulich <jbeulich@xxxxxxxx>:
>> This pattern is used when a rule consists of multiple commands
>> having their output appended to one another's.
> My understanding is: a rule is satisfied as soon as the file exists.

No - once make has found that a rule's commands need running, it'll
run the full set and only check again afterwards. If there was a
racing parallel make, things would be different, but such a race
would need addressing elsewhere: No two possibly racing threads of
the make process ought to be creating the same files. The creation
of the files needs synchronizing in such a case.




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