Pro*C Compiling on AIX - oraxlc not found

 We are running E-Biz Apps on 10G

Trying to compile Pro*C using

$ORACLE_HOME/precomp/demo/proc/demo_proc.mk

and getting orxlc_r  not found.

Based on metalink solution we tried

lrwxrwxrwx    1          14 Mar 17 10:35 oraxlc -> /usr/bin/xlc_r

then we get

.../bin/oraxlc: 1501-203 (S) configuration file /etc/vac.cfg.61 does not contain stanza oraxlc

There is nothing in the config file for oraxlc, but our guys here seem to think that Oracle should be providing the proper solution - they do not want to modify the config file..