Added missing sanity check.
The sanity check would help to detect real Bochs crash issue under Win x64 with MSDEV
configure script under Mingw env decided that SIZEOF_INT_P == 4 which is terribly wrong for 64-bit host.


git-svn-id: svn://svn.code.sf.net/p/bochs/code/trunk@12539 6c8e4198-a580-4521-a02f-c9ae86df1db9