UNUSED() macro so -Wunused-parameter can be used with GCC without so many warnings.

applied to python api and exotic.c, removed some args being passed down which were not needed.

keyword args for new mathutils types were being ignored when they should raise an error.

source/blender/python/intern/bpy.c

@@ -34,7 +34,9 @@
 
 #include "BLI_path_util.h"
 #include "BLI_bpath.h"
- 
+
+#include "BKE_utildefines.h"
+
  /* external util modules */
 #include "../generic/geometry.h"
 #include "../generic/bgl.h"
@@ -51,7 +53,7 @@ static char bpy_script_paths_doc[] =
 "   :return: (system, user) strings will be empty when not found.\n"
 "   :rtype: tuple of strigs\n";
 
-PyObject *bpy_script_paths(PyObject *self)
+PyObject *bpy_script_paths(PyObject *UNUSED(self))
 {
 	PyObject *ret= PyTuple_New(2);
 	char *path;
@@ -73,7 +75,7 @@ static char bpy_blend_paths_doc[] =
 "   :type absolute: boolean\n"
 "   :return: path list.\n"
 "   :rtype: list of strigs\n";
-static PyObject *bpy_blend_paths(PyObject * self, PyObject *args, PyObject *kw)
+static PyObject *bpy_blend_paths(PyObject *UNUSED(self), PyObject *args, PyObject *kw)
 {
 	struct BPathIterator bpi;
 	PyObject *list = PyList_New(0), *st; /* stupidly big string to be safe */
@@ -124,7 +126,7 @@ static char bpy_user_resource_doc[] =
 "   :type subdir: string\n"
 "   :return: a path.\n"
 "   :rtype: string\n";
-static PyObject *bpy_user_resource(PyObject * self, PyObject *args, PyObject *kw)
+static PyObject *bpy_user_resource(PyObject *UNUSED(self), PyObject *args, PyObject *kw)
 {
 	char *type;
 	char *subdir= NULL;