+#undef _traceattr2
+char *_traceattr2(
+ int bufnum,
+ attr_t newmode)
+ { return(*(char **)0); }
+
+#undef _traceattr
+char *_traceattr(
+ attr_t newmode)
+ { return(*(char **)0); }
+
+#undef _nc_retrace_attr_t
+attr_t _nc_retrace_attr_t(
+ attr_t code)
+ { return(*(attr_t *)0); }
+
+#undef _tracechtype2
+char *_tracechtype2(
+ int bufnum,
+ chtype ch)
+ { return(*(char **)0); }
+
+#undef _tracechtype
+char *_tracechtype(
+ chtype ch)
+ { return(*(char **)0); }