diff --git a/include/boost/system/config.hpp b/include/boost/system/config.hpp
index 14faa63..1e5f686 100644
--- a/include/boost/system/config.hpp
+++ b/include/boost/system/config.hpp
@@ -7,15 +7,16 @@
 
 //  See http://www.boost.org/libs/system for documentation.
 
-#ifndef BOOST_SYSTEM_CONFIG_HPP                  
+#ifndef BOOST_SYSTEM_CONFIG_HPP
 #define BOOST_SYSTEM_CONFIG_HPP
 
 #include <boost/config.hpp>
-#include <boost/predef/platform.h>
 #include <boost/system/api_config.hpp>  // for BOOST_POSIX_API or BOOST_WINDOWS_API
 
-// This header implements separate compilation features as described in
+// This header implemented separate compilation features as described in
 // http://www.boost.org/more/separate_compilation.html
+//
+// It's only retained for compatibility now that the library is header-only.
 
 //  normalize macros  ------------------------------------------------------------------//
 
@@ -46,25 +47,4 @@
 # define BOOST_SYSTEM_DECL
 #endif
 
-//  enable automatic library variant selection  ----------------------------------------// 
-
-#if !defined(BOOST_SYSTEM_SOURCE) && !defined(BOOST_ALL_NO_LIB) && !defined(BOOST_SYSTEM_NO_LIB)
-//
-// Set the name of our library, this will get undef'ed by auto_link.hpp
-// once it's done with it:
-//
-#define BOOST_LIB_NAME boost_system
-//
-// If we're importing code from a dll, then tell auto_link.hpp about it:
-//
-#if defined(BOOST_ALL_DYN_LINK) || defined(BOOST_SYSTEM_DYN_LINK)
-#  define BOOST_DYN_LINK
-#endif
-//
-// And include the header that does the work:
-//
-#include <boost/config/auto_link.hpp>
-#endif  // auto-linking disabled
-
 #endif // BOOST_SYSTEM_CONFIG_HPP
-