by will
1) Make selection of AUTO{CONF,MAKE} flexible depending on *_VER
variables.
2) This is backward compatible with previous behavior. For example,
{ACLOCAL,AUTO{CONF,HEADER,MAKE,RECONF,SCAN,UPDATE,IFNAMES}} are
set with default values even if USE_AUTO* are not set.
3) Have the defaults be devel/autoconf213 and devel/automake14 ports
(just set the USE_*VER?= to the latest values, or a bogus value).
If the user sets a bogus value, we use the default values.
4) Furthermore, add variables in the same sense of the
PTHREAD_* vars. We must be able to automagically patch the ports
based on the correct
{ACLOCAL,AUTO{CONF,HEADER,MAKE,RECONF,SCAN,UPDATE,IFNAMES}}
values.
5) Moreover, add {ACLOCAL,AUTO{MAKE,CONF}}_DIR variables pointing
to the right locations based on the *_VER variables, this is
useful if a port needs to grab files from those. This might seem
too much but if we want automagical, we should go this extra
mile.
Requested by: too many
Reviewed by: portmgr, ports
Approved by: portmgr (will), ports (silence)
0273a8420e