Fix E32PATH to make bootstrap compile correctly, tidy up other extension option paths
#include <Python.h>
char* cmd = "import exceptions";
int main()
{
Py_Initialize();
PyEval_InitThreads();
PyRun_SimpleString(cmd);
Py_EndInterpreter(PyThreadState_Get());
Py_NewInterpreter();
PyRun_SimpleString(cmd);
Py_Finalize();
return 0;
}