Having found out how to build Bjam, I have tried to build the libraries of Boost 1.31.0 for tru64cxx65. I'm only interested in Regex at the moment, so I won't bother you with the problems building other libraries. When the build gets to this point: tru64cxx65-C++-action bin/boost/libs/regex/build/libboost_regex.so/tru64cxx65/release/cregex.o it hangs. I have run into this situation with other large files, and my usual remedy is to decrease the optimization level. How can I do that? If I can't do it for just this file, I'm willing to reduce the optimization level for the entire library, or even for all libraries. (This is not a platform that I worry about performance; it's just there to support a few vestigial machines.) -- Dick Hadsell 914-259-6320 Fax: 914-259-6499 Reply-to: hadsell@blueskystudios.com Blue Sky Studios http://www.blueskystudios.com 44 South Broadway, White Plains, NY 10601