Begin autotools sanitization sequence by requiring ports to explicitly
specify which version of {libtool,autoconf,automake} they need, erasing
the concept of a "system default".
For ports-in-waiting:
USE_LIBTOOL=YES -> USE_LIBTOOL_VER=13
USE_AUTOCONF=YES -> USE_AUTOCONF_VER=213
USE_AUTOMAKE=YES -> USE_AUTOMAKE_VER=14
Ports attempting to use the old style system after June 1st 2004 will be
sorely disappointed.
output; switch from text-based VERSION file to C-based cfg_vers.c; bugfixes
and cleanups. See ChangeLog for complete details.
PR: ports/63175
Submitted by: Kimura Fuyuki <fuyuki@nigredo.org>