GCC-3.0.4 (pre) on AIX requires pthreads

[Loren James Rittle]

> [...]	I am not disagreeing with your original patch, just pointing out
> that there may be a simpler alternative.

Simpler is better.  The other idea can be saved and pulled up if we
can undertake additional global rearchitecture.  Even I dreaded
testing my approach on enough targets to satisfy everyone.

Loren> David, would you agree that this is a safe way to learn the required
Loren> dependent model files that must be installed on AIX:

Loren> ; sed -n 's,^#include.*"\(gthr-.*\)"$,\1,p' gthr-aix.h 
Loren> gthr-posix.h
Loren> gthr-single.h

> 	Yes, this seems to be sufficient for the cases at hand.

OK.

> 	Am I correctly assuming that gthr-aix.h will be recognized as
> glibcpp_thread_h and installed as gthr-default.h?  That should avoid a
> requirement to teach gthr.h about AIX threads or having GCC emit
> -D_PTHREADS to trigger gthr.h machinery.

gthr-aix.h will be so recognized if aix is what is reported as the
thread model.  Agreed on the second point.  (Note to others reading
the e-mail: The per-system macros are OK if not seen by the user.  One
big problem with the thread stuff before gcc 3.0 release was the ad
hoc nature of the command-line flags across ports.)

Regards,
Loren