Config.status on OS X

[Akim Demaille]

| Hmm, there's a chance that I don't have a clue what I'm doing, but
| this is what happens: the test suite executes incredibly slowly (it
| takes minutes between tests), but it is successful. 

zsh 3's memory allocation was guilty, but anyway autoconf is _very_
slow.

| Then, when I try
| to run autoconf 2.50 with the configure.in from gnupg-1.0.5 I get this
| result:
| 
| 
| [localhost:~/ftp/gnupg-1.0.5] hgd% autoconf -v
| ./aclocal.m4:798: error: m4_defn: undefined: _m4_divert_diversion
| acspecific.m4:434: AC_SYS_LARGEFILE is expanded from...
| ./aclocal.m4:798: the top level
| 
| I have no idea what this means...

Well, have a look a ./aclocal.m4:798 and tell us what's in there.