Forum OpenACS Q&A: Response to OpenACS 4 on Mac OS X (and Darwin) HOWTO now available


I suspect you're mising libxml2 and libxml2-devel. They're available from

I can't give you any hints on compiling these on Mac OS X since I haven't had the pleasure of using that OS (yet!).

If you do have libxml2-devel installed, then the problem is that the nsxml Makefile is not properly pointing to your libxml2 include files. Hope that gets you started...