Re: Big checkin to allow 64bit file access

[Corinna Vinschen]

Btw., this introduces two new datatypes, defined by SUSv2
but not yet defined in newlib, blkcnt_t and blksize_t, both
used in struct stat.  I added the definition of these types 
to cygwin/include/cygwin/types.h not to trouble newlib for
now.

Corinna