Avoid name clash in PyTruffleCData_NewGetBuffer

Author: msimacek

graalpython/com.oracle.graal.python.cext/src/capi.c

@@ -253,18 +253,18 @@ PyAPI_FUNC(void) mmap_init_bufferprotocol(PyObject* mmap_type) {
 	((PyTypeObject*) mmap_type)->tp_as_buffer = &mmap_as_buffer;
 }
 
-static int PyTruffleCData_NewGetBuffer(PyObject* type, Py_buffer* view, int flags) {
+static int cdata_getbuffer(PyObject* type, Py_buffer* view, int flags) {
     return GraalPyTruffleCData_NewGetBuffer(type, view, flags);
 }
 
-static void PyTruffleCData_ReleaseBuffer(PyObject* obj, Py_buffer* view) {
+static void cdata_releasebuffer(PyObject* obj, Py_buffer* view) {
     return GraalPyTruffleCData_ReleaseBuffer(obj, view);
 }
 
 PyAPI_FUNC(void) PyTruffleCData_InitBufferProtocol(PyObject* type) {
     static PyBufferProcs cdata_as_buffer = {
-        PyTruffleCData_NewGetBuffer,
-        PyTruffleCData_ReleaseBuffer,
+        cdata_getbuffer,
+        cdata_releasebuffer,
     };
     GraalPy_set_PyTypeObject_tp_as_buffer(type, &cdata_as_buffer);
     ((PyTypeObject*) type)->tp_as_buffer = &cdata_as_buffer;