Add missing intptr_t and uintptr_t (sync with FreeBSD and OpenBSD).
Add missing intptr_t and uintptr_t (sync with FreeBSD and OpenBSD).

MikaelSmith/ffi,sparkchaser/ffi,mvz/ffi,yghannam/ffi,MikaelSmith/ffi,MikaelSmith/ffi,ffi/ffi,sparkchaser/ffi,majioa/ffi,ferventcoder/ffi,yghannam/ffi,yghannam/ffi,sparkchaser/ffi,tduehr/ffi,tduehr/ffi,mvz/ffi,ferventcoder/ffi,tduehr/ffi,mvz/ffi,majioa/ffi,tduehr/ffi,majioa/ffi,ferventcoder/ffi,majioa/ffi,ffi/ffi,yghannam/ffi,MikaelSmith/ffi,ffi/ffi,sparkchaser/ffi,yghannam/ffi,mvz/ffi,ferventcoder/ffi