Restructure the project to match new modular layout.

include/boost/predef/compiler/gcc_xml.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_COMPILER_GCC_XML_H
+#define BOOST_PREDEF_COMPILER_GCC_XML_H
+
+#include <boost/predef/version_number.h>
+#include <boost/predef/make.h>
+
+/*`
+[heading `BOOST_COMP_GCCXML`]
+
+[@http://en.wikipedia.org/wiki/XXX GCC XML] compiler.
+
+[table
+    [[__predef_symbol__] [__predef_version__]]
+
+    [[``] [__predef_detection__]]
+
+    [[``] [V.R.P]]
+    ]
+ */
+
+#define BOOST_COMP_GCCXML BOOST_VERSION_NUMBER(0,0,0)
+
+#if defined(__GCCXML__)
+#   undef BOOST_COMP_GCCXML
+#   define BOOST_COMP_GCCXML BOOST_VERSION_NUMBER(0,0,1)
+#endif
+
+#define BOOST_COMP_GCCXML_NAME "GCC XML"
+
+#include <boost/predef/detail/test.h>
+BOOST_PREDEF_DECLARE_TEST(BOOST_COMP_GCCXML,BOOST_COMP_GCCXML_NAME)
+
+
+#endif