Re: 1.16.90 regression: configure now takes 7 seconds to start

Simon Richter <[email protected]> Sat, 8 Jun 2024 12:21:27 +0900

Newsgroups	gmane.comp.sysutils.automake.general
Message-ID	<[email protected]>

Hi,

On 6/8/24 08:50, Bruno Haible wrote:

> You can't achieve portability by using a highly unportable program
> like 'stat'. That's why my patch only uses 'df' and 'mount'.

You can test if it's available, and fall back if not.

> I don't care much about the 0.4 seconds spent on determining sub-second
> resolution. It's the 6 seconds that bug me.

If sub-second resolution is available, we don't need to test further, so 
we can skip these tests if stat is available.

> Since a tarball can be created on ext4 and unpacked on vfat FS,
> this would mean that autoconf needs to introduce a sleep() of up to
> 1 second, _regardless_ on which FS it is running. No, thank you,
> that is not a good cure to the problem.

If "touch" is available and capable of setting arbitrary timestamps, 
that could also work. We need the fallback, though.

    Simon

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