[RFC] Update to current automake/autoconf/libtool versions.

[Mike Stump]

On Thursday, December 5, 2002, at 03:19 PM, Alan Modra wrote:
> On Thu, Dec 05, 2002 at 02:55:38PM -0800, Ian Lance Taylor wrote:
>> Perhaps --enable-maintainer-mode could be extended to specify a PATH
>> to use to find the tools.
>
> It would need to be on a per-directory basis.  Something like
>
> --enable-maintainer-mode=\
> "gdb:/usr/local/000227/bin,libstdc++-v3:/usr/local/oldauto/bin,*:yes"

This is beyond gross.  :-(

Better to require

autoconf-2.14
autoconf

and then have each directory know which one to use, and require the 
advanced user to have these.

OAUTOCONF = autoconf-2.14
AUTOCONF = autoconf

and then use $(AUTOCONF) for new uses, and $(OAUTOCONF) for old uses.

Also, we need a version check on the old autoconf to be sure that it 
isn't too new.