Hi, Beginning at the top, apparently my cpp doesn't like the syntax of BOOST_TESTED_AT(0x531) : xlc-C++-action bin/boost/libs/python/build/libboost_python.so/vacpp/debug/numeric.o "/home/jedwards/cvs_src/boost/boost/iterator/detail/config_def.hpp", line 28.39: 1540-0827 (S) The constant expression on the #if directive contains a syntax error at "BOOST_TESTED_AT". -- Jim Edwards jedwards@ucar.edu IBM Applications Analyst NCAR SCD BOULDER CO 303-497-1842