[Pw_forum] espresso 3.1 compilation

[Fernando A Reboredo]

I am trying to compile espresso on a  3.1 4.5 TF IBM pSeries System (cheetah 
NSSC ).
I get the following error
./configure
checking build system type... /usr/bin/oslevel[7]: /usr/bin/rm_mlcache_file: 
cannot execute
config.sub: too many arguments
Try `config.sub --help' for more information.
configure: error: /bin/sh ./config.sub powerpc-ibm-aixoslevel: Error 
processing cache, return code 126. oslevel: Use the -f flag to rebuild 
cache. failed

I suspect that it is because I do not have executable permisions for 
/usr/bin/rm_mlcache_file
Am I wright?
what is rm_mlcache_file for?
Fernando