Hi, When compiling certain boost features I get this error with the Sun Compiler (SunOS 5.10, x64) compiler(iropt) error: get_leaf_hash_index: unknown constant type I'm including the following: #include <boost/accumulators/accumulators.hpp> #include <boost/accumulators/statistics/stats.hpp> #include <boost/accumulators/statistics/mean.hpp> #include <boost/accumulators/statistics/kurtosis.hpp> #include <boost/accumulators/statistics/moment.hpp> #include <boost/accumulators/statistics/variance.hpp> #include <boost/accumulators/statistics/skewness.hpp> I'm using boost 1.42.0, any idea why this is? Regards, Iskandar