--- Libc/Libc-498/include/ucontext.h
+++ Libc/Libc-391/include/ucontext.h
@@ -24,14 +24,6 @@
 #ifndef _UCONTEXT_H_
 #define _UCONTEXT_H_
 
-#include <sys/cdefs.h>
 #include <sys/ucontext.h>
 
-__BEGIN_DECLS
-int  getcontext(ucontext_t *);
-void makecontext(ucontext_t *, void (*)(void), int, ...);
-int  setcontext(const ucontext_t *);
-int  swapcontext(ucontext_t * __restrict, const ucontext_t * __restrict);
-__END_DECLS
-
 #endif /* _UCONTEXT_H_ */