Help with GCC CC1 error

[OldCat]

We are trying to rebuild a module on AIX using GCC.  No matter what we try, we keep getting this error:

gcc: error trying to exec 'cc1': execvp: No such file or directory

I have search the gnu.org site, but cannot find any clues. Here is the output of gcc -v:

Using built-in specs.
Target: powerpc-ibm-aix6.1.0.0
Configured with: ../gcc-4.2.4/configure --with-as=/usr/bin/as --with-ld=/usr/bin/ld --enable-languages=c,c++,fortran --prefix=/opt/freeware --enable-threads --enable-version-specific-runtime-libs --disable-nls --enable-decimal-float=dpd --host=powerpc-ibm-aix6.1.0.0
Thread model: aix
gcc version 4.2.4


thank you