-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
According to Paolo Bonzini on 10/5/2007 1:56 AM:
> This is the source of run-time performance improvements. It uses
> "test -s" to know if there will be output from diff, and skips the
> invocation if this is not the case. I was surprised too by the
> difference, but it's there to see. I abstracted this into a
> shell function too.
>
>
> +at_diff_devnull () {
Namespace, comments...
> + test -s "$[1]" || return 0
Is 'test -s' portable? autoconf.texi is silent on the matter. Would we
need a fallback? If so, we should calculate it at the same time as we
calculate $at_diff and $at_devnull.
Otherwise, this looks okay.
- --
Don't work too hard, make some time for fun as well!
Eric Blake [EMAIL PROTECTED]
-----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
iD8DBQFHBo3A84KuGfSFAYARArn8AKDBpoN+LCUaMrE96l50DfrbdimSjgCfcA9m
BJdFinBgyo8sC9DiHGJLmgk=
=bFhh
-----END PGP SIGNATURE-----
