add fdlibm

git-svn-id: http://svn2.nishi.boats/svn/milsko/trunk@557 b9cfdab3-6d41-4d17-bbe4-086880011989

external/fdlibm/w_atan2.c

@@ -0,0 +1,24 @@
+
+/* @(#)w_atan2.c 1.3 95/01/18 */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunSoft, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ *
+ */
+
+/*
+ * wrapper atan2(y,x)
+ */
+
+#include "math.h"
+
+double atan2(double y, double x) /* wrapper atan2 */
+{
+	return __fdlibm_atan2(y, x);
+}