I just filed a couple of glibc bugs against getopt; depending on the reaction I get from the glibc folks, I may need to update gnulib's getopt accordingly.
http://sources.redhat.com/bugzilla/show_bug.cgi?id=11039 http://sources.redhat.com/bugzilla/show_bug.cgi?id=11040 At any rate, our unit tests have no testing of an optstring of "-:..." or "+:..." (bug 11039 - glibc doesn't honor the : as a means of silencing stderr and returning ':' instead of '?'), nor of the GNU extension of an optstring of "W;" (bug 11040 - use of this extension mistakenly allows -; as a valid short option). For that matter, we aren't really testing whether an optstring of ":" effectively silences stderr and changes return value, even without throwing the GNU extensions of leading '-' or '+' into the mix. -- Eric Blake
