Aporia won't build on openbsd current
Attempting to build on OpenBSD current.  They changed their pthread_np implementation after release 5.9.  Not to sure how to work around yet.

/home/javan/app/Aporia-0.4.1/nimcache/stdlib_system.c:(.text+0x10d65): undefined reference to `pthread_threadid_np'
        ... clang: error: linker command failed with exit code 1 (use -v to see invocation)
