/* Round towards negative infinity.
- Copyright (C) 2007, 2009 Free Software Foundation, Inc.
+ Copyright (C) 2007, 2009-2011 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
/* Written by Bruno Haible <bruno@clisp.org>, 2007. */
-#define USE_LONG_DOUBLE
-#include "floor.c"
+#include <config.h>
+
+#if HAVE_SAME_LONG_DOUBLE_AS_DOUBLE
+
+/* Specification. */
+# include <math.h>
+
+long double
+floorl (long double x)
+{
+ return floor (x);
+}
+
+#else
+
+# define USE_LONG_DOUBLE
+# include "floor.c"
+
+#endif