🚀 go-pugleaf

Was there any good reason for undefining the include M4 builtin?
Groff 1.06 uses it, and I've been using it in my geeks package; I
can't see what harm it could do, and it makes the configure.in file
much neater.

I'm know virtually nothing about M4, and don't want to, so my two
basic questions are: 1) is there a good reason to disable include in
Autoconf, and 2) if so, is there any other way round it?

I've been thinking about trying Metaconfig for a while; it'd be a
shame for something this trivial to be the ``straw that broke the
camel's back''.

Regards,
-- Dave Gymer