Re: [PATCH] Present But Cannot Be Compiled

[Paolo Bonzini]

> I think letting AC_PREREQ affect _any_ macro semantics is a really bad
> idea (except of course: let autoconf fail if the version is too old).
> Here's why: that AC_PREREQ could be hidden in some third- or
> fourth-party macro imported from whereever, and there is no control by
> the configure.ac author (or macro file author) over the choice of
> semantics.

Even though I propose the usage of AC_PREREQ, I agree.  So, unless some
other brilliant idea comes, I am afraid the transition will have to be
prolonged for a while.

Hopefully, the improved performance will stimulate adoption of Autoconf
2.64 (though there are many packages that still have to adapt for
datarootdir and are not upgrading for that reason).

Paolo