I have also used WANT_FEATURE and NEED_FEATURE sometimes. If the app sets WANT_FEATURE and configure says is it there already, we do not define NEED_FEATURE. If configure says it is not there, we define NEED_FEATURE and then in this case we provide the feature. H _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx https://lists.gnu.org/mailman/listinfo/autoconf