diff --git a/libc/rand48.h b/libc/rand48.h
new file mode 100644
index 0000000..afa49f6
--- /dev/null
+++ b/libc/rand48.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 1993 Martin Birgmeier
+ * All rights reserved.
+ *
+ * You may redistribute unmodified or modified versions of this source
+ * code provided that the above copyright notice and this and the
+ * following conditions are retained.
+ *
+ * This software is provided ``as is'', and comes with no warranties
+ * of any kind. I shall in no event be liable for anything that happens
+ * to anyone/anything when using this software.
+ *
+ *	$OpenBSD: rand48.h,v 1.3 2002/02/16 21:27:24 millert Exp $
+ */
+
+#ifndef _RAND48_H_
+#define _RAND48_H_
+
+#include <math.h>
+#include <stdlib.h>
+
+void		__dorand48(unsigned short[3]);
+
+#define	RAND48_SEED_0	(0x330e)
+#define	RAND48_SEED_1	(0xabcd)
+#define	RAND48_SEED_2	(0x1234)
+#define	RAND48_MULT_0	(0xe66d)
+#define	RAND48_MULT_1	(0xdeec)
+#define	RAND48_MULT_2	(0x0005)
+#define	RAND48_ADD	(0x000b)
+
+#endif /* _RAND48_H_ */