internal compiler error: segmentation fault: 11

[Dave]

Hello,
    I'm trying to compile 6.0-stable on a release box, prior to upgrade. 
I've tried several times and all end with an internal compiler error: 
segmentation fault: 11. And then i'm told to submit a bug report. My problem 
is when this occurs it's not always at the same spot or the same file. One 
time it even core dumped, though only once.
    At this point i would appreciate any suggestions, i'm hoping this is not 
the indicator of a problem.
Thanks.
Dave.