--- OLD/xc/lib/Xau/Xauth.h	Thu Jan  1 00:00:00 1970
+++ NEW/xc/lib/Xau/Xauth.h	Thu Jan  1 00:00:00 1970
@@ -53,7 +53,11 @@
 
 _XFUNCPROTOBEGIN
 
-char *XauFileName();
+char *XauFileName(
+#if NeedFunctionPrototypes
+void
+#endif
+);
 
 Xauth *XauReadAuth(
 #if NeedFunctionPrototypes