I have updated my daily build site with the new development tools (mingw-mame-w32-20120807.exe) and I have this error when doing "c:\mingw\mingw64-w32\bin\make TARGET=mess" :

Compiling src/osd/windows/vconv.c...
cc1.exe: internal compiler error: Illegal instruction
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make: *** [obj/windows/osd/windows/vconv.o] Error 1

vconv.c is the very first file trying to be compiled. So in fact cc1.exe does not work at all.

The daily build machine is WinXP 32 bits.

Does it ring a bell for any of you ?