Re: [PATCH] Fix sloppy tests for silent rules

[Ludovic Courtès]

Hi,

Stefano Lattarini <address@hidden> writes:

> At Monday 05 July 2010, Ludovic Courtès wrote:
>
>> I noticed on NixOS GNU/Linux that silent*.test would randomly fail (see
>> <http://hydra.nixos.org/build/477516>.)  The reason is that these tests
>> would fail if “mv” is found in the standard output of ‘make’, but the
>> random build directory names used by Nix could very well contain this
>> string.
> Thanks for the report.  However, this problem has already been fixed in the
> master and maint branches of the Automake git repository -- see:
>   <http://git.savannah.gnu.org/cgit/automake.git/tree/tests/silent5.test>
>   
> <http://git.savannah.gnu.org/cgit/automake.git/tree/tests/silent5.test?h=maint>
> the relevant line being:
>   $EGREP '(mv|ylwrap) ' stdout && Exit 1

Excellent!

>> The patch below makes the tests slightly more robust in this respect.
>> I’m not sure if this syntax for word boundaries is portable across
>> ‘grep’ implementations, though.
> According to the autoconf manual, it's not; see the entry for "grep" at:
>  
> <http://www.gnu.org/software/autoconf/manual/autoconf.html#Limitations-of-Usual-Tools>

Noted.

Thanks,
Ludo’.