ref: b3124cebe026211ed88adc1dc1d7f09f74f45d35
dir: /lib/std/mkpath.myr/
use "syswrap" use "errno" pkg std = const mkpath : (p : byte[:] -> errno) ;; const mkpath = {p var st for var i = 0; i < p.len; i++ if p[i] == ('/' : byte) && i != 0 st = mkdir(p[:i], 0o755) if st != 0 && st != Eexist -> st ;; ;; ;; st = mkdir(p, 0o755) -> Enone }