$ py -3.5 setup.py build_ext --inplace
running build_ext
building 'spa_py' extension
creating build
creating build\temp.win-amd64-3.5
creating build\temp.win-amd64-3.5\Release
C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\BIN\amd64\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Python35\include -IC:\Python35\include "-IC:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\INCLUDE" "-IC:\Program Files (x86)\Windows Kits\10\include\10.0.10240.0\ucrt" "-IC:\Program Files (x86)\Windows Kits\NETFXSDK\4.6.1\include\um" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\shared" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\um" "-IC:\Program Files (x86)\Windows Kits\8.1\include\\winrt" /Tcspa_py.c /Fobuild\temp.win-amd64-3.5\Release\spa_py.obj
spa_py.c
c:\users\mmikofski\documents\projects\pvlib-python\pvlib\spa_c_files\spa.h(88): error C2032: '__timezone': function cannot be member of struct '<unnamed-tag>'
spa_py.c(854): error C2059: syntax error: '('
spa_py.c(1700): error C2059: syntax error: '('
spa_py.c(1702): error C2275: 'PyObject': illegal use of this type as an expression
c:\python35\include\object.h(110): note: see declaration of 'PyObject'
spa_py.c(1702): error C2059: syntax error: ')'
spa_py.c(1702): error C2223: left of '->ob_refcnt' must point to struct/union
spa_py.c(1702): error C2065: '_py_decref_tmp': undeclared identifier
spa_py.c(1702): warning C4312: 'type cast': conversion from 'int' to 'PyObject *' of greater size
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio 14.0\\VC\\BIN\\amd64\\cl.exe' failed with exit status 2