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diff --git a/libgfortran/generated/hyp_c4.c b/libgfortran/generated/hyp_c4.c
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+++ b/libgfortran/generated/hyp_c4.c
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+/* Complex hyperbolic functions
+   Copyright 2002 Free Software Foundation, Inc.
+   Contributed by Paul Brook <paul@nowt.org>
+
+This file is part of the GNU Fortran 95 runtime library (libgfor).
+
+Libgfortran is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+Libgfortran 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 Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with libgfor; see the file COPYING.LIB.  If not,
+write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA.  */
+#include <math.h>
+#include "libgfortran.h"
+
+
+/* Complex number z = a + ib.  */
+
+/* sinh(z) = sinh(a)cos(b) + icosh(a)sin(b)  */
+GFC_COMPLEX_4
+csinhf (GFC_COMPLEX_4 a)
+{
+  GFC_REAL_4 r;
+  GFC_REAL_4 i;
+  GFC_COMPLEX_4 v;
+
+  r = REALPART (a);
+  i = IMAGPART (a);
+  COMPLEX_ASSIGN (v, sinhf (r) * cosf (i), coshf (r) * sinf (i));
+  return v;
+}
+
+/* cosh(z) = cosh(a)cos(b) - isinh(a)sin(b)  */
+GFC_COMPLEX_4
+ccoshf (GFC_COMPLEX_4 a)
+{
+  GFC_REAL_4 r;
+  GFC_REAL_4 i;
+  GFC_COMPLEX_4 v;
+
+  r = REALPART (a);
+  i = IMAGPART (a);
+  COMPLEX_ASSIGN (v, coshf (r) * cosf (i), - (sinhf (r) * sinf (i)));
+  return v;
+}
+
+/* tanh(z) = (tanh(a) + itan(b)) / (1 - itanh(a)tan(b))  */
+GFC_COMPLEX_4
+ctanhf (GFC_COMPLEX_4 a)
+{
+  GFC_REAL_4 rt;
+  GFC_REAL_4 it;
+  GFC_COMPLEX_4 n;
+  GFC_COMPLEX_4 d;
+
+  rt = tanhf (REALPART (a));
+  it = tanf (IMAGPART (a));
+  COMPLEX_ASSIGN (n, rt, it);
+  COMPLEX_ASSIGN (d, 1, - (rt * it));
+
+  return n / d;
+}
+