Hi Gerri, A couple of more things that need to be incorporated into configure: a) I'd like to remove some historical baggage. In the past I was unable to convince anyone that platform and compiler was independent. So, the best I got was -DSUNCC to tip me off that I was compiling for Solaris. This, of course, is silly. Would it be possible to *consistently* define a define symbol for general OS type? For instance, we have -D__linux__ and I'd like to extend that to other OS's. Specifically, I'd like -D__solaris__ if we are compiling for that OS. Once that happens, I'll change all occurrences of SUNCC to that symbol. b) In porting to macos, I had to redo the getxxxnyxxx() calls. Now, I will use getnameinfo() and getaddrinfo() but only if they are available and revert to the get methods otherwise. However, that means that -DHAS_NAMEINFO must be defined for me to use the name routines. Most platforms have them now except for Solaris 7, I beleive. There is some kludginess for linux because getaddrinfo() primatively returns all possible addresses for a host, even when they are duplicates (i.e., the host has aliases). If you'd like to use a negative symbol (e.g., HASNO_NAMEINFO or MISSING_NAMEINFO) that's ok too. Thanks! Andy