I'm still investigating whether it makes sense to add this to the ports tree.
cosmocc is the compiler for the cosmopolitan toolchain. Cosmopolitan
Libc makes C a build-once run-anywhere language, like Java, except it
doesn't need an interpreter or virtual machine. Instead, it reconfigures
stock GCC and Clang to output a POSIX-approved polyglot format that runs
natively on Linux + Mac + Windows + FreeBSD + OpenBSD + NetBSD + BIOS
with the best possible performance and the tiniest footprint imaginable.