Hello, creating a custom build, I get lots of compiler errors during Boost.Python compilation. Some of these compiler errors are: c:\...\boost_1_31_0\libs\python\build\../src/numeric.cpp: Error E2231 C:\...\boost_1_31_0\boost/python/detail/value_is_shared_ptr.hpp 14: Member value_is_shared_ptr::value cannot be used without an object. Error E2299 C:\...\boost_1_31_0\boost/python/detail/value_is_shared_ptr.hpp 14: Cannot generate template specialization from 'mpl::bool_' Error E2040 C:\...\boost_1_31_0\boost/python/detail/value_is_shared_ptr.hpp 14: Declaration syntax error These error messages repeat in a lot of other files. Sometimes the compiler aborts compilation because of too many errors or warnings. The rest of boost seems to compile fine. Does anybody have an idea on how to solve this problem? Is this difficulty already known? I tried to compile with Python 2.3 at first but switched back to Python 2.2 because I read somewhere that there may be some problems with this version. But it did not solve the problem. I already tried to compile the current CVS Snapshot but it did not change a thing. My configuration is: - Python 2.2 - Boost 1.31.0 - bjam 3.1.10 - Windows XP - Borland C++ Builder 6 Personal Building Boost with: c:\...\boost_1_31_0>bjam -sTOOLS=borland -sPYTHON_ROOT=c:\...\python22 install I would appreciate any suggestions. Regards, Steffen Rauh