Re: [2.64] Test "Hard fail" fails on Darwin

[Ludovic Courtès]

Hi Ralf,

Ralf Wildenhues <address@hidden> writes:

> * Ludovic Courtès wrote on Wed, Jul 29, 2009 at 10:15:44AM CEST:

[...]

>> PATH: 
>> /private/tmp/nix-build-dnnfpb1bi3bwf696k09s44l2p9s0ppgw-autoconf-2.64.drv-0/autoconf-2.64/tests
>> PATH: /nix/store/xra8dla43v4y3icyz81p9jdcmphnwjny-gnum4-1.4.13/bin
> [...]
>
> Ahh, I've read about this concept but haven't seen it in action yet.
> Do the long directory names slow down the system much in practice?

Not in an observable way, AFAICT.  I don't think anyone tried to measure
this, though.

Note that in "normal use" $PATH et al. aren't longer than with a
conventional file system layout: users typically have only
`$HOME/.nix-profile/bin' (which contains symlinks to files under
/nix/store) and a couple of other entries in $PATH.

> This is a trivial failure due to a test that is not restrictive enough.
> The grep tries to find out if any of the tests in the micro testsuite
> succeeded bogusly; however, it is too lax and also matches the line that
> lists your host name.  I'm applying the patch below to make the test
> more restrictive.

Thanks for finding it out!  I've applied it downstream as well.

Cheers,
Ludo'.