> JavaScriptCore, bash, bc, emacs, efax, gnudiff, gnuserv, gnutar, groff, gpatch, keymgr, libstdcxx, man, nano, screen, texinfo, and uucp.
as of 10.12 (opensource.apple.com not yet updated):
gnutar replaced by bsd tar
keymgr gone?
efex gone?
(gnu) make is also included