Bugs:
ctypesgen#229 : fields of forward-declared struct not taken over
ctypesgen#211 : issue when binding to Python C API, may be related to the above
ctypesgen#227 : const pointers don't work, missing in output
ctypesgen#218 : __attribute__ ((packed)) not recognized at end of struct, grammar issue

Feature requests:
ctypesgen#187 : avoid excessive struct aliases
ctypesgen#180 : add ability to take over docstrings