llvm-gcc 4.2

All,
  I'm trying to build llvm-gcc 4.2 from svn (as of about a
week ago). I'm getting:

../../llvm-gcc-4.2/libcpp/expr.c: In function 'num_negate':
../../llvm-gcc-4.2/libcpp/expr.c:1114: internal compiler
error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.

I would like to do some debugging, but I don't see
where "internal compiler error" is begin generated. I have
gdb set to break on SIGSEV, but I don't get the signal.
Any help would be appreciated.

Aran

The gcc program is only a driver. It runs the cc1 executable to do the compilation.

Run gcc -v to see the command line for cc1, then run gdb on that.

Thanks,
/jakob