$ WC "d_union_semun='undef'"
$ WC "d_unlink_all_versions='" + d_unlink_all_versions + "'" ! VMS-specific
$ WC "d_unordered='undef'"
$ WC "d_union_semun='undef'"
$ WC "d_unlink_all_versions='" + d_unlink_all_versions + "'" ! VMS-specific
$ WC "d_unordered='undef'"