--- Libc/Libc-498/stdio/fvwrite.h
+++ Libc/Libc-262/stdio/fvwrite.h
@@ -34,7 +34,6 @@
  * SUCH DAMAGE.
  *
  *	@(#)fvwrite.h	8.1 (Berkeley) 6/4/93
- * $FreeBSD: src/lib/libc/stdio/fvwrite.h,v 1.3 2002/05/28 16:59:39 alfred Exp $
  */
 
 /*
@@ -50,4 +49,8 @@
 	int	uio_resid;
 };
 
+#if __STDC__ || c_plusplus
 extern int __sfvwrite(FILE *, struct __suio *);
+#else
+extern int __sfvwrite();
+#endif