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+/*=============================================================================
+*
+* WCSLIB - an implementation of the FITS WCS proposal.
+* Copyright (C) 1995-2002, Mark Calabretta
+*
+* This library is free software; you can redistribute it and/or modify it
+* under the terms of the GNU Library General Public License as published
+* by the Free Software Foundation; either version 2 of the License, or (at
+* your option) any later version.
+*
+* This library 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 Library
+* General Public License for more details.
+*
+* You should have received a copy of the GNU Library General Public License
+* along with this library; if not, write to the Free Software Foundation,
+* Inc., 51 Franklin Street,Fifth Floor, Boston, MA 02110-1301, USA
+*
+* Correspondence concerning WCSLIB may be directed to:
+* Internet email: mcalabre@atnf.csiro.au
+* Postal address: Dr. Mark Calabretta,
+* Australia Telescope National Facility,
+* P.O. Box 76,
+* Epping, NSW, 2121,
+* AUSTRALIA
+*
+* Author: Mark Calabretta, Australia Telescope National Facility
+* $Id$
+*=============================================================================
+*
+* This version of wcstrig.h is based on the version in wcslib-2.9, but has
+* been modified in the following ways by the Starlink project (e-mail:
+* ussc@star.rl.ac.uk):
+* - Changed the name of the WCSLIB_MATH macro to WCSLIB_MATH_INCLUDED
+*===========================================================================*/
+
+#ifndef WCSLIB_MATH_INCLUDED
+#define WCSLIB_MATH_INCLUDED
+
+#ifdef PI
+#undef PI
+#endif
+
+#ifdef D2R
+#undef D2R
+#endif
+
+#ifdef R2D
+#undef R2D
+#endif
+
+#ifdef SQRT2
+#undef SQRT2
+#endif
+
+#ifdef SQRT2INV
+#undef SQRT2INV
+#endif
+
+#define PI 3.141592653589793238462643
+#define D2R PI/180.0
+#define R2D 180.0/PI
+#define SQRT2 1.4142135623730950488
+#define SQRT2INV 1.0/SQRT2
+
+#endif /* WCSLIB_MATH_INCLUDED */