`SIGSTKSZ` is now defined as `sysconf(_SC_SIGSTKSZ)` which is not constexpr, and returns a long which throws off the `std::max` template deduction.
`SIGSTKSZ` is now defined as `sysconf(_SC_SIGSTKSZ)` which is not constexpr, and returns a long which throws off the `std::max` template deduction.