Use relibc on Linux

[Arcterus]

It would be interesting to have an option to use relibc instead of the system's native C library on the aarch64 and x86_64 Linux targets (either by linking with a custom compiled relibc in the Makefile or by directly using relibc in the code instead of libc).

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.