elif sizeof(kind) == 4: c_uint32 = kind
elif sizeof(kind) == 8: c_uint64 = kind
+# XXX for whatever reasons, creating the first instance of a callback
+# function is needed for the unittests on Win64 to succeed. This MAY
+# be a compiler bug, since the problem occurs only when _ctypes is
+# compiled with the MS SDK compiler. Or an uninitialized variable?