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diff --git a/gnulib b/gnulib
deleted file mode 160000
-Subproject 443bc5ffcf7429e557f4a371b0661abe98ddbc1
diff --git a/gnulib/tests/test-floorl.c b/gnulib/tests/test-floorl.c
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+++ b/gnulib/tests/test-floorl.c
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+/* Test of rounding towards negative infinity.
+   Copyright (C) 2007-2011 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
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+/* Written by Bruno Haible <bruno@clisp.org>, 2007.  */
+
+#include <config.h>
+
+#include <math.h>
+
+#include "signature.h"
+SIGNATURE_CHECK (floorl, long double, (long double));
+
+#include <float.h>
+
+#include "fpucw.h"
+#include "isnanl-nolibm.h"
+#include "minus-zero.h"
+#include "infinity.h"
+#include "nan.h"
+#include "macros.h"
+
+int
+main ()
+{
+  DECL_LONG_DOUBLE_ROUNDING
+
+  BEGIN_LONG_DOUBLE_ROUNDING ();
+
+  /* Zero.  */
+  ASSERT (floorl (0.0L) == 0.0L);
+  ASSERT (floorl (minus_zerol) == 0.0L);
+  /* Positive numbers.  */
+  ASSERT (floorl (0.3L) == 0.0L);
+  ASSERT (floorl (0.7L) == 0.0L);
+  ASSERT (floorl (1.0L) == 1.0L);
+  ASSERT (floorl (1.5L) == 1.0L);
+  ASSERT (floorl (1.999L) == 1.0L);
+  ASSERT (floorl (2.0L) == 2.0L);
+  ASSERT (floorl (65535.999L) == 65535.0L);
+  ASSERT (floorl (65536.0L) == 65536.0L);
+  ASSERT (floorl (2.341e31L) == 2.341e31L);
+  /* Negative numbers.  */
+  ASSERT (floorl (-0.3L) == -1.0L);
+  ASSERT (floorl (-0.7L) == -1.0L);
+  ASSERT (floorl (-1.0L) == -1.0L);
+  ASSERT (floorl (-1.001L) == -2.0L);
+  ASSERT (floorl (-1.5L) == -2.0L);
+  ASSERT (floorl (-1.999L) == -2.0L);
+  ASSERT (floorl (-2.0L) == -2.0L);
+  ASSERT (floorl (-65535.999L) == -65536.0L);
+  ASSERT (floorl (-65536.0L) == -65536.0L);
+  ASSERT (floorl (-2.341e31L) == -2.341e31L);
+  /* Infinite numbers.  */
+  ASSERT (floorl (Infinityl ()) == Infinityl ());
+  ASSERT (floorl (- Infinityl ()) == - Infinityl ());
+  /* NaNs.  */
+  ASSERT (isnanl (floorl (NaNl ())));
+
+  return 0;
+}