Revert to using <utility> for std lib detection for now, TR1 will have to do something different.

[SVN r31341]

include/boost/config/select_stdlib_config.hpp

@@ -12,17 +12,12 @@
 // locate which std lib we are using and define BOOST_STDLIB_CONFIG as needed:
 
 // we need to include a std lib header here in order to detect which
-// library is in use, use <iosfwd> and <limits> as they're about the smallest
+// library is in use, use <utility> as it's about the smallest
 // of the std lib headers - do not rely on this header being included -
 // users can short-circuit this header if they know whose std lib
 // they are using.
-// PLEASE NOTE that the config system must not include any of the headers
-// that are modified by TR1 (<memory>, <functional> or <utility>) not even
-// indirectly.  If they do so then the Boost TR1 implementation will be unusable.
-//
 
-#include <iosfwd>
-#include <limits>
+#include <utility>
 
 #if defined(__SGI_STL_PORT) || defined(_STLPORT_VERSION)
 // STLPort library; this _must_ come first, otherwise since

include/boost/config/stdlib/dinkumware.hpp

@@ -12,7 +12,7 @@
 //  Dinkumware standard library config:
 
 #if !defined(_YVALS) && !defined(_CPPLIB_VER)
-#include <iosfwd>
+#include <utility>
 #if !defined(_YVALS) && !defined(_CPPLIB_VER)
 #error This is not the Dinkumware lib!
 #endif

include/boost/config/stdlib/libcomo.hpp

@@ -10,7 +10,7 @@
 //  Comeau STL:
 
 #if !defined(__LIBCOMO__)
-#  include <iosfwd>
+#  include <utility>
 #  if !defined(__LIBCOMO__)
 #      error "This is not the Comeau STL!"
 #  endif

include/boost/config/stdlib/modena.hpp

@@ -8,7 +8,7 @@
 //  Modena C++ standard library (comes with KAI C++)
 
 #if !defined(MSIPL_COMPILE_H)
-#  include <iosfwd>
+#  include <utility>
 #  if !defined(__MSIPL_COMPILE_H)
 #      error "This is not the Modena C++ library!"
 #  endif

include/boost/config/stdlib/msl.hpp

@@ -9,7 +9,7 @@
 //  Metrowerks standard library:
 
 #ifndef __MSL_CPP__
-#  include <iosfwd>
+#  include <utility>
 #  ifndef __MSL_CPP__
 #     error This is not the MSL standard library!
 #  endif

include/boost/config/stdlib/roguewave.hpp

@@ -10,7 +10,7 @@
 //  Rogue Wave std lib:
 
 #if !defined(__STD_RWCOMPILER_H__) && !defined(_RWSTD_VER)
-#  include <iosfwd>
+#  include <utility>
 #  if !defined(__STD_RWCOMPILER_H__) && !defined(_RWSTD_VER)
 #     error This is not the Rogue Wave standard library
 #  endif

include/boost/config/stdlib/stlport.hpp

@@ -10,7 +10,7 @@
 //  STLPort standard library config:
 
 #if !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION)
-#  include <iosfwd>
+#  include <utility>
 #  if !defined(__SGI_STL_PORT) && !defined(_STLPORT_VERSION)
 #      error "This is not STLPort!"
 #  endif