> Very clear now, but not easy to implement: > - which name to give to such a macro > - where to implement it: well, in this case you don't need it... i just mention it for the case where this is needed. Here, you really can just unconditioanlly compare against (void *)SIG_foo randolph -- Randolph Chung Debian GNU/Linux Developer, hppa/ia64 ports http://www.tausq.org/