fix wrong return value from wmemmove on forward copies

[musl] / include / signal.h

diff --git a/include/signal.h b/include/signal.h
index 89080ab..b8ba1b5 100644 (file)
--- a/include/signal.h
+++ b/include/signal.h
@@ -212,7 +212,7 @@ void (*sigset(int, void (*)(int)))(int);
 #define NSIG _NSIG
 #endif
 
-#ifdef _BSD_SOURCE
+#if defined(_BSD_SOURCE) || defined(_GNU_SOURCE)
 typedef void (*sig_t)(int);
 #endif
 
@@ -220,6 +220,9 @@ typedef void (*sig_t)(int);
 typedef void (*sighandler_t)(int);
 void (*bsd_signal(int, void (*)(int)))(int);
 int sigisemptyset(const sigset_t *);
+int sigorset (sigset_t *, sigset_t *, sigset_t *);
+int sigandset(sigset_t *, sigset_t *, sigset_t *);
+
 #define SA_NOMASK SA_NODEFER
 #define SA_ONESHOT SA_RESETHAND
 #endif