Add endian.h header for byte order detection. Ensure that headers can be

included individually.

include/boost/predef/library/c/_prefix.h

@@ -0,0 +1,13 @@
+/*
+Copyright Redshift Software, Inc. 2008-2013
+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_LIBRARY_C__PREFIX_H
+#define BOOST_PREDEF_LIBRARY_C__PREFIX_H
+
+#include <boost/predef/detail/_cassert.h>
+
+#endif

include/boost/predef/library/c/gnu.h

@@ -11,6 +11,8 @@ http://www.boost.org/LICENSE_1_0.txt)
 #include <boost/predef/version_number.h>
 #include <boost/predef/make.h>
 
+#include <boost/predef/library/c/_prefix.h>
+
 #if defined(__STDC__)
 #include <stddef.h>
 #elif defined(__cplusplus)

include/boost/predef/library/c/uc.h

@@ -8,6 +8,8 @@ http://www.boost.org/LICENSE_1_0.txt)
 #ifndef BOOST_PREDEF_LIBRARY_C_UC_H
 #define BOOST_PREDEF_LIBRARY_C_UC_H
 
+#include <boost/predef/library/c/_prefix.h>
+
 #include <boost/predef/version_number.h>
 #include <boost/predef/make.h>
 

include/boost/predef/library/c/vms.h

@@ -8,6 +8,8 @@ http://www.boost.org/LICENSE_1_0.txt)
 #ifndef BOOST_PREDEF_LIBRARY_C_VMS_H
 #define BOOST_PREDEF_LIBRARY_C_VMS_H
 
+#include <boost/predef/library/c/_prefix.h>
+
 #include <boost/predef/version_number.h>
 #include <boost/predef/make.h>
 

include/boost/predef/library/c/zos.h

@@ -8,6 +8,8 @@ http://www.boost.org/LICENSE_1_0.txt)
 #ifndef BOOST_PREDEF_LIBRARY_C_ZOS_H
 #define BOOST_PREDEF_LIBRARY_C_ZOS_H
 
+#include <boost/predef/library/c/_prefix.h>
+
 #include <boost/predef/version_number.h>
 #include <boost/predef/make.h>