Moved the definition of _AIX_AtomicSet() to the outside of the #ifndef AIX4_1 block.  Thanks to C. Fung <carsonf@torolab.ibm.com> for reporting this problem.
Moved the definition of _AIX_AtomicSet() to the outside of the
#ifndef AIX4_1 block.  Thanks to C. Fung <carsonf@torolab.ibm.com>
for reporting this problem.

thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr,thespooler/nspr