Restructure the project to match new modular layout.

include/boost/predef/os/linux.h

@@ -0,0 +1,41 @@
+/*
+Copyright Redshift Software, Inc. 2008-2012
+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_LINUX_H
+#define BOOST_PREDEF_OS_LINUX_H
+
+#include <boost/predef/version_number.h>
+#include <boost/predef/make.h>
+
+/*`
+[heading `BOOST_OS_LINUX`]
+
+[@http://en.wikipedia.org/wiki/Linux Linux] operating system.
+
+[table
+    [[__predef_symbol__] [__predef_version__]]
+
+    [[``] [__predef_detection__]]
+
+    [[``] [V.R.P]]
+    ]
+ */
+
+#define BOOST_OS_LINUX BOOST_VERSION_NUMBER(0,0,0)
+
+#if defined(linux) || defined(__linux)
+#   undef BOOST_OS_LINUX
+#   define BOOST_OS_LINUX BOOST_VERSION_NUMBER(0,0,1)
+#endif
+
+#define BOOST_OS_LINUX_NAME "Linux"
+
+#include <boost/predef/detail/test.h>
+BOOST_PREDEF_DECLARE_TEST(BOOST_OS_LINUX,BOOST_OS_LINUX_NAME)
+
+
+#endif