Re: calling autoreconf and minimizing rebuilds

[Paul Eggert]

Ralf Wildenhues <address@hidden> writes:

> 2006-12-04  Ralf Wildenhues  <address@hidden>
>
>       * tests/tools.at (autom4te preselections): New test, to flag
>       entries missing from autom4te.cfg.
>       Report by David Byron <address@hidden>.

This looks reasonable, but...

> +: ${sleep='sleep 2'} # Command to force different time stamps

Why doesn't 'sleep 1' suffice?  That '2' has me worried.

Ralf Wildenhues <address@hidden> writes:

> Do you think we'll need to cater for a 5 second
> delay when $build is *-pc-msdosdjgpp (as Automake does)?

Naah.  Surely we can assume a reasonable build platform for this kind
of test.  If the platform isn't reasonable, we can skip the test.

(I'd even prefer 'sleep 1e-6' on platforms supporting microsecond time
stamp resolution and subsecond sleeps.  ;-)