[log in to unmask] writes:
>   We got our system upgraded to from MPE 5.5 to 6.0 this morning.
>  I decided to reinstall the gnu environment so as to "be safe".

For the future, there should be no reason to have to do this.

> However, I installed gnucore, gnugcc1, gnugcc2 and gnulibs.

Those haven't been the package names for quite a while I believe.  Have you
tried downloading the latest version from Jazz?

> Anyone have any ideas where to start[...]?

www.gccsupport.com

:-)

G.