Hi Frank, The object code is not compatible. The generated object code follows different conventions for RTTI, for exception handling, for name mangling, and for bootstrapping. To get the Forte v6u1 and GCC v3.2.1 C++ code to work together, you need to construct a "C thunk barrier" code that bridges the one C++ environment to the other C++ environment. (Or, alternatively, use the same compiler on all the code.) Why isn't the object code compatible? Because there isn't a common C++ ABI. There is a common C ABI. HTH, --Eljay
