v3 won't build on AIX 4.1

[Alexandre Oliva]

The problem is that <sys/atomic_op.h> typedefs atomic_p and atomic_h,
but not atomic_l, that config/aix/bits/atomicity.h relies upon.  Do we
care?

-- 
Alexandre Oliva   Enjoy Guarana', see http://www.ic.unicamp.br/~oliva/
Red Hat GCC Developer                  aoliva@{cygnus.com, redhat.com}
CS PhD student at IC-Unicamp        oliva@{lsd.ic.unicamp.br, gnu.org}
Free Software Evangelist    *Please* write to mailing lists, not to me