All,I have written a shell script to build static and shared libs from various combinations or 32- and 64-bit i386, ppc, ppc64, and x86_64 architectures using bjam calls. It requires use of the 10.5 SDK while the default SDK for Boost on OS X is 10.4--which won't build shared 64-bit libs flawlessly. Many thanks to the Boost developers who gave me a enough hints on this list to figure it all out. If there is a wiki where I can post it, I can do that to make access easier. If someone wants the script in the mean time, let me know. Daniel -- "It's not how many years you live--it's how much life you put in your years" -- Sierra Mountain Guide