あーぁ

In file included from /usr/include/X11/Xtrans/transport.c:76,
                 from xim_trans.c:32:
/usr/include/X11/Xtrans/Xtranssock.c:298: internal compiler error: in assemble_output_def, at varasm.c:4414
Please submit a full bug report,
with preprocessed source if appropriate.
See url:http://cygwin.com/problems.html for instructions.

ついにインターナルコンパイラエラーですか。(ﾟДﾟ;)
この壁は、、、乗り越えられないかも。