AIX atomicity.h support

[Benjamin Kosnik]

> 	The patch works for as much as it is trying to accomplish.  The
> larger problem is that the libtool support for AIX has a lot of
> misconceptions and the v3 configuration mechanism is far too SVR4-,
> Solaris-, and Linux-centric.  v3 needs to learn how to deal with AIX
> atomicity, AIX pthreads, and AIX shared libraries.

atomicity, threads should be no problem, as I indicated in mail to you
yesterday.

shared libraries are the domain of libtool.

What toolchain are you using on AIX? I've never had much luck getting a
functional g++/ld combo. 

> 	I still have not heard any response to my request from last May
> for help with the configuration issues. 

Again, please re-send. I thought I gave you some pointers yesterday.

best,
benjamin