Re: --localdir backwards compatibility

[Akim Demaille]

 Niels> Akim Demaille <address@hidden> writes:
 >> Please, drop 2.13, as it is too buggy, and trying to maintain
 >> compatibility with it is the worse that could happen to your scripts.

 Niels> Well, there's a lot of nifty stuff in the latest autoconf that I like,
 Niels> but there are also some more controversial things (like the
 Niels> perl/autom4te stuff, not using config.cache by default, and it seems
 Niels> to be an order of magnitude slower than autoconf-2.13). I use and
 Niels> require the latest autoconf for my own projects, but I don't think
 Niels> autoconf-2.13 is going to disappear soon.

Slowness is relative: the more you run it, the less it is, precisely
thanks to the cache.  That's a dramatic speed up when using autoheader
and/or automake.

Still, 2.57 lets you disable the generation of that cache file.