ref: a2ef6bfcd8de0ae9f7f2df2fcdd692bde6ea422c dir: /lib/iter/bld.sub/
lib iter = chunk.myr enum.myr perm.myr ref.myr reverse.myr zip.myr lib ../sys:sys lib ../std:std ;; testdeps = ../testr:testr ../sys:sys ../std:std ;;