bootstrap failure on cycgwin while building libsup++

[Benjamin Kosnik]

> `void 
>    __cxa_call_unexpected(_Unwind_Exception*)':
> /usr/local/src/gcc/libstdc++-v3/libsupc++/eh_personality.cc:443: Internal 
>    error: Segmentation fault
> Please submit a full bug report,
> with preprocessed source if appropriate.
> See <URL: http://www.gnu.org/software/gcc/bugs.html > for instructions.
> make[4]: *** [eh_personality.lo] Error 1

Looks like a compiler error. You might want to pre-process the sources 
and post them.

-benjamin