ref: 4db5274a2f6db10e31e11c503f36c85a98c65fbc 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 ;;