D:\build\parrot>nmake [snip]
imcparser.c imcparser.c imcc.y(527) : warning C4761: integral size mismatch in argument; conversion supplied imcc.y(590) : warning C4761: integral size mismatch in argument; conversion supplied imcc.y(666) : warning C4761: integral size mismatch in argument; conversion supplied imcc.y(668) : warning C4761: integral size mismatch in argument; conversion supplied imcc.y(670) : warning C4761: integral size mismatch in argument; conversion supplied imcc.y(672) : warning C4761: integral size mismatch in argument; conversion supplied imclexer.c imclexer.c imclexer.c(2241) : warning C4273: 'isatty' : inconsistent dll linkage. dllexport assumed. imc.c imc.c imc.c(927) : warning C4761: integral size mismatch in argument; conversion supplied stacks.c stacks.c symreg.c symreg.c instructions.c instructions.c instructions.c(100) : warning C4761: integral size mismatch in argument; conversion supplied cfg.c cfg.c cfg.c(514) : warning C4761: integral size mismatch in argument; conversion supplied sets.c sets.c debug.c debug.c optimizer.c optimizer.c optimizer.c(235) : warning C4761: integral size mismatch in argument; conversion supplied optimizer.c(578) : warning C4761: integral size mismatch in argument; conversion supplied pbc.c pbc.c