Incomplete work for using Boost.Polygon to compute medial axis

xs/src/boost/predef/os/bsd/free.h

@@ -0,0 +1,60 @@
+/*
+Copyright Redshift Software, Inc. 2012-2013
+Distributed under the Boost Software License, Version 1.0.
+(See accompanying file LICENSE_1_0.txt or copy at
+http://www.boost.org/LICENSE_1_0.txt)
+*/
+
+#ifndef BOOST_PREDEF_OS_BSD_FREE_H
+#define BOOST_PREDEF_OS_BSD_FREE_H
+
+#include <boost/predef/os/bsd.h>
+
+/*`
+[heading `BOOST_OS_BSD_FREE`]
+
+[@http://en.wikipedia.org/wiki/Freebsd FreeBSD] operating system.
+
+[table
+    [[__predef_symbol__] [__predef_version__]]
+
+    [[`__FreeBSD__`] [__predef_detection__]]
+
+    [[`__FreeBSD_version`] [V.R.P]]
+    ]
+ */
+
+#define BOOST_OS_BSD_FREE BOOST_VERSION_NUMBER_NOT_AVAILABLE
+
+#if !BOOST_PREDEF_DETAIL_OS_DETECTED && ( \
+    defined(__FreeBSD__) \
+    )
+#   ifndef BOOST_OS_BSD_AVAILABLE
+#       define BOOST_OS_BSD BOOST_VERSION_NUMBER_AVAILABLE
+#       define BOOST_OS_BSD_AVAILABLE
+#   endif
+#   undef BOOST_OS_BSD_FREE
+#   if defined(__FreeBSD_version)
+#       if __FreeBSD_version < 500000
+#           define BOOST_OS_BSD_FREE \
+                BOOST_PREDEF_MAKE_10_VRP000(__FreeBSD_version)
+#       else
+#           define BOOST_OS_BSD_FREE \
+                BOOST_PREDEF_MAKE_10_VRR000(__FreeBSD_version)
+#       endif
+#   else
+#       define BOOST_OS_BSD_FREE BOOST_VERSION_NUMBER_AVAILABLE
+#   endif
+#endif
+
+#if BOOST_OS_BSD_FREE
+#   define BOOST_OS_BSD_FREE_AVAILABLE
+#   include <boost/predef/detail/os_detected.h>
+#endif
+
+#define BOOST_OS_BSD_FREE_NAME "Free BSD"
+
+#include <boost/predef/detail/test.h>
+BOOST_PREDEF_DECLARE_TEST(BOOST_OS_BSD_FREE,BOOST_OS_BSD_FREE_NAME)
+
+#endif