[Bug preprocessor/58939] Cannot Cross-Build Android Native GCC 4.8 libcpp build conversion errors

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58939

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Interesting POSIX requires st_size to be off_t.  I see it is long long on some
platforms of bionic.

https://android.googlesource.com/platform/bionic/+/refs/heads/master/libc/include/sys/stat.h

I don't know if there is a way to support this correctly.
because using off_t will cause a truncatation.

Likewise for st_mtime too.

I don't know the right away to fix this without major changes to the sources.

So the question becomes do we want to support non-POSIX targets for these
structs here?