initsip() crashes with a corrupted stack
When getting a pointer to the sip API:
sip_API = reinterpret_cast<const sipAPIDef*>( PyCapsule_Import("sip._C_API", 0));
a crash is reported in initsip().
Also, when constructing C++ classes using boost.Python, a strange error is returned:
TypeError: __init__() should return None, not 'NoneType'
Both of these problems are caused by linking against a different version of python than sip/boost are compiled with.