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-rw-r--r--include/signal.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/signal.h b/include/signal.h
index 3acc1f0bd7..0f7eb851bf 100644
--- a/include/signal.h
+++ b/include/signal.h
@@ -7,6 +7,8 @@
 /* Now define the internal interfaces.  */
 extern __sighandler_t __bsd_signal (int __sig, __sighandler_t __handler);
 extern int __kill (__pid_t __pid, int __sig);
+extern int __sigaction (int __sig, __const struct sigaction *__restrict __act,
+			struct sigaction *__restrict __oact);
 extern int __sigblock (int __mask);
 extern int __sigsetmask (int __mask);
 extern int __sigprocmask (int __how,