Re: Patch proposal: Add --clean options to unbootstrap a project.

[Eric Blake]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

According to Ralf Wildenhues on 9/30/2007 10:21 AM:
> 
>> +    {
>> +      unlink $f or error "error: Cannot remove `$f': $!"
>> +        unless not -f $f;
> 
> FWIW, this kind of code leaves me wondering about perl operator
> precedence.  Is `unless' an operator (it's not listed in `perldoc
> perlop') and what's the binding here?  (I did test it to ensure it's
> right here, and left it this way.)

In perl, "unless expression" is a statement, strictly equivalent to "if !
expression", ie. the same precedence as if, but reads nicer in English
when avoiding double negatives.

> 
> Autoconf:
> 2007-09-30  Benoit Sigoure  <address@hidden>
>           Ralf Wildenhues  <address@hidden>
> 
>       * bin/autoconf.as, bin/autoheader.in, bin/autoreconf.in,
>       bin/autom4te.in, bin/autoscan.in, bin/autoupdate.in: New option
>       `--clean', short `-c'.

As to the rest of this patch, it will be a couple of days before I can
take a better look into it.  But thanks for your efforts on this front.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (Cygwin)
Comment: Public key at home.comcast.net/~ericblake/eblake.gpg
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org

iD8DBQFHABfM84KuGfSFAYARAuQjAKCWrPoBD3qu0HRuM51GDdqNqQCl3wCeO0Yc
y99QnCb/+OkvcNZmc1WAHdo=
=+MeV
-----END PGP SIGNATURE-----