fix: restore linux mingw client build and gm smoke

src/ScriptLib/PythonUtils.cpp

@@ -10,6 +10,8 @@ bool __PyCallClassMemberFunc_ByCString(PyObject* poClass, const char* c_szFunc,
 bool __PyCallClassMemberFunc_ByPyString(PyObject* poClass, PyObject* poFuncName, PyObject* poArgs, PyObject** poRet);
 bool __PyCallClassMemberFunc(PyObject* poClass, PyObject* poFunc, PyObject* poArgs, PyObject** poRet);
 
+extern "C" PyObject* M2_GetPyNonePtr(void);
+
 PyObject * Py_BadArgument()
 {
 	PyErr_BadArgument();
@@ -36,13 +38,14 @@ PyObject * Py_BuildException(const char * c_pszErr, ...)
 
 PyObject * Py_BuildNone()
 {
-	Py_INCREF(Py_None);
-	return Py_None;
+	PyObject* pyNone = M2_GetPyNonePtr();
+	Py_INCREF(pyNone);
+	return pyNone;
 }
 
 void Py_ReleaseNone()
 {
-	Py_DECREF(Py_None);
+	Py_DECREF(M2_GetPyNonePtr());
 }
 
 bool PyTuple_GetObject(PyObject* poArgs, int pos, PyObject** ret)
@@ -111,7 +114,7 @@ bool PyTuple_GetFloat(PyObject* poArgs, int pos, float* ret)
 	if (!poItem)
 		return false;
 
-	*ret = float(PyFloat_AsDouble(poItem));
+	*ret = static_cast<float>(PyFloat_AsDouble(poItem));
 	return true;
 }
 
@@ -119,7 +122,7 @@ bool PyTuple_GetByte(PyObject* poArgs, int pos, unsigned char* ret)
 {
 	int val;
 	bool result = PyTuple_GetInteger(poArgs,pos,&val);
-	*ret = unsigned char(val);
+	*ret = static_cast<unsigned char>(val);
 	return result;
 }
 
@@ -127,7 +130,7 @@ bool PyTuple_GetInteger(PyObject* poArgs, int pos, unsigned char* ret)
 {
 	int val;
 	bool result = PyTuple_GetInteger(poArgs,pos,&val);
-	*ret = unsigned char(val);
+	*ret = static_cast<unsigned char>(val);
 	return result;
 }
 
@@ -135,7 +138,7 @@ bool PyTuple_GetInteger(PyObject* poArgs, int pos, WORD* ret)
 {
 	int val;
 	bool result = PyTuple_GetInteger(poArgs,pos,&val);
-	*ret = WORD(val);
+	*ret = static_cast<WORD>(val);
 	return result;
 }
 
@@ -452,4 +455,4 @@ bool __PyCallClassMemberFunc(PyObject* poClass, PyObject * poFunc, PyObject* poA
 	Py_DECREF(poFunc);
 	Py_XDECREF(poArgs);
 	return true;
-}
+}