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From: Brian Barrett (brbarret_at_[hidden])
Date: 2006-05-30 23:08:28

On May 28, 2006, at 8:48 AM, Justin Bronder wrote:

> Brian Barrett wrote:
>> On May 27, 2006, at 10:01 AM, Justin Bronder wrote:
>>> I've attached the required logs. Essentially the problem seems to
>>> be that the XL Compilers fail to recognize "__asm__ __volatile__" in
>>> opal/include/sys/powerpc/atomic.h when building 64-bit.
>>> I've tried using various xlc wrappers such as gxlc and xlc_r to
>>> no avail. The current log uses xlc_r_64 which is just a one line
>>> shell script forcing the -q64 option.
>>> The same works flawlessly with gcc-4.1.0. I'm using the nightly
>>> build in order to link with Torque's new shared libraries.
>>> Any help would be greatly appreciated. For reference here are
>>> a few other things that may provide more information.
>> Can you send the config.log file generated by configure? What else
>> is in the xlc_r_64 shell script, other than the -q64 option?

> I've attached the config.log, and here's what all of the *_64 scripts
> look like.

Can you try compiling without the -qkeyword=__volatile__? It looks
like XLC now has some support for GCC-style inline assembly, but it
doesn't seem to be working in this case. If that doesn't work, try
setting CFLAGS and CXXFLAGS to include -qnokeyword=asm, which should
disable GCC inline assembly entirely. I don't have access to a linux
cluster with the XL compilers, so I can't verify this. But it should


   Brian Barrett
   Open MPI developer