Add prototype for sysv_signal.

diff --git a/signal/signal.h b/signal/signal.h
index d378b12e37fd31d7285820e416a2b12176d8b7b6..c346a65667966fa3e5f770e73529253e0ea6d77b 100644 (file)
--- a/signal/signal.h
+++ b/signal/signal.h
@@ -57,10 +57,11 @@ extern __sighandler_t signal __P ((int __sig, __sighandler_t __handler));
    requested.  */
 extern __sighandler_t __sysv_signal __P ((int __sig,
                                          __sighandler_t __handler));
-
-#if defined __USE_XOPEN && !defined __USE_GNU
+#ifdef __USE_GNU
 extern __sighandler_t sysv_signal __P ((int __sig, __sighandler_t __handler));
+#endif
 
+#ifndef __USE_BSD
 /* Make sure the used `signal' implementation is the SVID version.  */
 #define signal(sig, handler) __sysv_signal ((sig), (handler))
 #endif