AIX heads up with -b34 tree...
The 'ibmcxx.cmp 3.6.6.3' appears to miscompile at least 2 different
XEmacs source files (fileio.c and at least one other) when using
'-O3 -qstrict'. 3.6.6.2 appears to be fine, as does compiling with -g.
The fileio.c botch is the cause of the crash I saw loading thai-xtix.el.
The other one causes a ugly crash while starting up.
Only recommendation I can make is to use 3.6.6.2.
I'll post a patch for PROBLEMS soon as I figure out what I think it should say ;)
/Valdis