objToJSON nonvoid function does not return a value
I am trying to package pandas 0.12.0 for openSUSE with python 3 the build fails with the following error:

E: python3-pandas no-return-in-nonvoid-function pandas/src/ujson/python/objToJSON.c:166

I think this may be related to pull request #3874, where the return type was changed to int but the rest of the function remains the same, so no int was actually returned.
