Hi Geri, Well, I finally made it work. MacOSx was not that easy to support, sigh. In the process I needed to make several additions to configure and add some architecture types. Could you please review those changes? The main difference is how the architectures are named. The common practice appears to be to call it ppc_darwin_70 (I have no idea about versions prior to 7.5). In the process I also added as a distinction for RHEL3 and Linux on opterons. Finally, the Mac has one peculiar problem. Between releases they changed the format of shared libraries. The linker is told what to do by the setting of the environmental variable MACOSX_DEPLOYMENT_TARGET which, for me, has to be set to 10.3 (you can't build realistic shared libraries prior to this release). The default, unfortunately, is 10.1; totally useless. So, now we have a problem because there is no way to conveniently set this environmental variable fom the make file. BTW 10.3 kernel starting in MacOSx 7.5. I think we should support kernels at this level or higher. Doing anything older will be too intensive of a job. Andy