[Bug: 21.5-b29] configure doesn't know its own options
Stephen J. Turnbull writes:
Actually it understands all of the options, but it pretends it
doesn't
know *any* of them. One of these days we'll get around to spoofing
the Autoconf Seal of Approval[tm], but in the meantime the easiest way
to disable the warning is to re-autoconf with Autoconf 2.61. I
probably should add that to my release script, actually. :-(
Hm. It appears that there is code already in configure.ac to spoof
the Seal of Approval, but that it doesn't work because, rather than
the usual use of ":" as a sequence separator, the autoconf implementor
chose to use a newline as separator in the list of declared options.
(This is more readable in the generated configure for the very long
list of allowed options that we end up with.) Stay tuned for a patch
later today, and maybe even XEmacs 21.5.30 around the weekend. :-)
Anybody willing to test, just search for _AC_USER_OPT in configure.ac,
and replace the `[:]' which is the last argument in each call to
m4_append_uniq with `[
]'. That's right, a bare newline, with no quoting. Then regenerate
configure with Autoconf 2.63, and configure with your usual options
(or if you usually don't use any options, with some unusual options).
The main thing is to check that (a) Installation looks plausible (the
sine qua non), and (b) that configure emits no warnings about
unrecognized options.
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