1) It doesn't update configure.in / Makefile.in to name apr-config apr-MAJOR-config in the build directory.
Well, that doesn't matter to our external projects. (And, huh, it's already named like that for me when it's installed.)
2) It assumes bundled apr will be apr-1. We want to make find_apr.m4 independent of apr version, so that in the future, it could be installed into a system aclocal directory (thanks to noahmcit on #apr for pointing this out).
No, that doesn't matter: if you want to assume bundled APR is less than 1.0, use the same find_ap{ru}.m4 you are right now.
3) It only implements "accept apr-0 or apr-1", but unless projects do extra compatibility work, and make sure to *never* expose the apr ABI in their own ABI, they will want "accept apr-0 only" or "accept apr-1 only".
Again, not a concern at all. If you want to accept apr-0 *only*, then don't upgrade to this find_ap{ru}.m4.
It's not like all of the projects would magically upgrade to this: they have to choose to upgrade to this m4 version. -- justin
