#define ctf_string(_item, _src) \
_ctf_string(_item, _src, 0)
+#undef ctf_unused
+#define ctf_unused(_src) \
+ _ctf_unused(_src)
+
#undef ctf_enum
#define ctf_enum(_provider, _name, _type, _item, _src) \
_ctf_enum(_provider, _name, _type, _item, _src, 0)