http://cool.haxx.se/cvs.cgi/curl/lib/inet_ntop.h.diff?r1=1.6&r2=1.7 breaks a couple of builds (Tru64, IRIX 6.2), e.g. http://curl.haxx.se/auto/log.cgi?id=20090807071316-9957#prob1
(essentially it's a cast to (socklen_t) in inet_ntop.h and the build problem is where socklen_t is unknown when compiling hostip.c) -Tor
