Hi, appended is a small patch to fix some annoying warnings using Visual C++ 8.0 and 9.0. It would be nice if this could be looked at and applied to the trunk. The warnings were: 1>brick_pool.cpp 1>E:\devel\working_copies\schism_x64_vc90_sp1\externals\inc\boost\boost/unordered/unordered_map.hpp(388) : warning C4396: 'boost::operator ==' : the inline specifier cannot be used when a friend declaration refers to a specialization of a function template 1>E:\devel\working_copies\schism_x64_vc90_sp1\externals\inc\boost\boost/unordered/unordered_map.hpp(389) : warning C4396: 'boost::operator !=' : the inline specifier cannot be used when a friend declaration refers to a specialization of a function template Regards -chris -- Christopher Lux | | Bauhaus-Universität Weimar | faculty of media - virtual reality systems group