Commits f2198ccfac and 4fcfe49bcc
are fixed 2Gb limit, but introduced 4Gb limit on Rasperry Pi 32 bit.
This is because the max value of type `size_t` is `4294967295` on this
system.
Furthermore, the Standard Library use `std::uintmax_t` as a type
of value returned by `std::filesystem::file_size`.