Sat Mar 27 11:21:26 PDT 2010 Ian Lynagh <igloo at earth.li>
* Fix the format specifier for Int64/Word64 on Windows
mingw doesn't understand %llu/%lld - it treats them as 32-bit rather
than 64-bit. We use %I64u/%I64d instead.
M ./includes/Rts.h +7