$ ac-provides libxpconnect.so mozilla-firefox-1.5.0.7-2 mozilla-thunderbird-1.5.0.7-1 seamonkey-1.0.5-1 this is no good, is it? is there way to exclude the provides for whole dir like /usr/lib/mozilla-thunderbird/components/* ? altho those mozilla packages don't require it via rpm deps: $ ac-requires libxpconnect.so $ -- glen