diff --git a/src/kernel/libroot/posix/signal/sigset.c b/src/kernel/libroot/posix/signal/sigset.c
new file mode 100644
index 0000000000..750e6ca1ee
--- /dev/null
+++ b/src/kernel/libroot/posix/signal/sigset.c
@@ -0,0 +1,40 @@
+#include <syscalls.h>
+#include <signal.h>
+
+/*
+ *  Copyright (c) 2002, OpenBeOS Project. All rights reserved.
+ *  Distributed under the terms of the OpenBeOS license.
+ *
+ *
+ *  sigset.c:
+ *  implements two sigset functions:
+ *    sigemptyset() and sigfillset()
+ *
+ *  the other three sigset functions
+ *    sigaddset(), sigdelset(), and sigismember()
+ *  are inlined in the <signal.h> header file
+ *  (I have no idea why there is a distinction between
+ *   some being inlined and others not)
+ *
+ *
+ *  Author(s):
+ *  Daniel Reinhold (danielre@users.sf.net)
+ *
+ */
+
+
+int
+sigemptyset(sigset_t *set)	
+{
+	*set = (sigset_t) 0L;
+	return 0;
+}
+
+
+int
+sigfillset(sigset_t *set)
+{
+	*set = (sigset_t) ~(0UL);
+	return 0;
+}
+