Hi,
If you want to phrase the question in terms of object file format and
linker issues, the answer is that the format is the same.
It's easy to see why: the compiler does not produce object files. It
produces files containing assembly language. The assembler produces
object files. The C and C++ compilers use the same assembler.
Before passing the ball to the assembler the compiler does name
mangling. It is different for C and C++ and the actual problem at link
time comes from here. If you have C++ sources and can compile these
sources and later link with the C object files surround your method
declarations with
extern "C" {...}
This may help. If you don't have the c++ sources, create wrappers
either to C object files or C++. For now I don't know any other
alternative.