I solved this problem. I have had to generate an own user.hpp file for my Solaris version, using configure.sh command. But.... now these are the generated errors:
"./boost/config/suffix.hpp", line 391: Error: ptrdiff_t is not defined. "./boost/config/suffix.hpp", line 391: Error: size_t is not defined. "./boost/config/suffix.hpp", line 503: Warning (Anachronism): Attempt to redefine BOOST_DEDUCED_TYPENAME without using #undef. "./boost/config/suffix.hpp", line 613: Error: type_info is not defined. "/opt/SUNWspro/prod/include/CC/stlport4/stl/_algobase.h", line 77: Error: std::minstd::_Tp(const std::_Tp&, const std::_Tp&) already had a body defined. "/opt/SUNWspro/prod/include/CC/stlport4/stl/_algobase.h", line 79: Error: std::maxstd::_Tp(const std::_Tp&, const std::_Tp&) already had a body defined. "./boost/cstdint.hpp", line 491: Error: #error defaults not correct; you must hand modify boost/cstdint.hpp.
Related to if Forte 7 is an old compiler, there is no return point, I've got to work with this because there is not budget.
Then I fear you may have some work to do solving the remaining issues yourself, I'm not sure we ever supported Sun versions that far back, though you could try an old Boost version contemporary with that compiler.... old bugs and all :-( John.