> C ABI

Is there really such a thing? I thought the ABI was dependent on the operating system and compiler.

I agree that C is unique in it's ability to generate programs that can be interfaced with from any language. This also seems to apply to older languages like Fortran and Pascal, for some reason. Higher level languages are an ABI nightmare; seriously doubt anyone will ever dynamically link against a C++ library at runtime and call a method on a C++ object from any language that isn't C++.