[C++-sig] C++ Signature

[T J]

For boost.python, the C++ signature is shown with a particular header
[python/src/object/function_doc_signature.cpp]:

        char cpp_signature_tag[] = "C++ signature :";

To conform to a reST docstring format, I'd like to change it to:

        char cpp_signature_tag[] = "C++ signature:\n==============\n";

Is this possible without recompiling boost?  Ideally, I'd like to this
to be user-definable when I create my module.