--- libcpp/include/cpplib.h.jj	2013-04-25 23:47:58.000000000 +0200
+++ libcpp/include/cpplib.h	2013-04-27 08:31:52.349122712 +0200
@@ -423,7 +423,7 @@ struct cpp_options
   /* True for traditional preprocessing.  */
   unsigned char traditional;
 
-  /* Nonzero for C++ 2011 Standard user-defnied literals.  */
+  /* Nonzero for C++ 2011 Standard user-defined literals.  */
   unsigned char user_literals;
 
   /* Nonzero means warn when a string or character literal is followed by a
@@ -434,6 +434,9 @@ struct cpp_options
      literal number suffixes as user-defined literal number suffixes.  */
   unsigned char ext_numeric_literals;
 
+  /* Nonzero for C++ 2014 Standard binary constants.  */
+  unsigned char binary_constants;
+
   /* Holds the name of the target (execution) character set.  */
   const char *narrow_charset;
 
--- libcpp/init.c.jj	2013-04-25 23:47:58.000000000 +0200
+++ libcpp/init.c	2013-04-27 08:34:54.103120530 +0200
@@ -83,24 +83,25 @@ struct lang_flags
   char uliterals;
   char rliterals;
   char user_literals;
+  char binary_constants;
 };
 
 static const struct lang_flags lang_defaults[] =
-{ /*              c99 c++ xnum xid std  //   digr ulit rlit user_literals */
-  /* GNUC89   */  { 0,  0,  1,   0,  0,   1,   1,   0,   0,    0 },
-  /* GNUC99   */  { 1,  0,  1,   0,  0,   1,   1,   1,   1,    0 },
-  /* GNUC11   */  { 1,  0,  1,   0,  0,   1,   1,   1,   1,    0 },
-  /* STDC89   */  { 0,  0,  0,   0,  1,   0,   0,   0,   0,    0 },
-  /* STDC94   */  { 0,  0,  0,   0,  1,   0,   1,   0,   0,    0 },
-  /* STDC99   */  { 1,  0,  1,   0,  1,   1,   1,   0,   0,    0 },
-  /* STDC11   */  { 1,  0,  1,   0,  1,   1,   1,   1,   0,    0 },
-  /* GNUCXX   */  { 0,  1,  1,   0,  0,   1,   1,   0,   0,    0 },
-  /* CXX98    */  { 0,  1,  1,   0,  1,   1,   1,   0,   0,    0 },
-  /* GNUCXX11 */  { 1,  1,  1,   0,  0,   1,   1,   1,   1,    1 },
-  /* CXX11    */  { 1,  1,  1,   0,  1,   1,   1,   1,   1,    1 },
-  /* GNUCXX1Y */  { 1,  1,  1,   0,  0,   1,   1,   1,   1,    1 },
-  /* CXX1Y    */  { 1,  1,  1,   0,  1,   1,   1,   1,   1,    1 },
-  /* ASM      */  { 0,  0,  1,   0,  0,   1,   0,   0,   0,    0 }
+{ /*              c99 c++ xnum xid std  //   digr ulit rlit udlit bin_cst */
+  /* GNUC89   */  { 0,  0,  1,   0,  0,   1,   1,   0,   0,   0,    0 },
+  /* GNUC99   */  { 1,  0,  1,   0,  0,   1,   1,   1,   1,   0,    0 },
+  /* GNUC11   */  { 1,  0,  1,   0,  0,   1,   1,   1,   1,   0,    0 },
+  /* STDC89   */  { 0,  0,  0,   0,  1,   0,   0,   0,   0,   0,    0 },
+  /* STDC94   */  { 0,  0,  0,   0,  1,   0,   1,   0,   0,   0,    0 },
+  /* STDC99   */  { 1,  0,  1,   0,  1,   1,   1,   0,   0,   0,    0 },
+  /* STDC11   */  { 1,  0,  1,   0,  1,   1,   1,   1,   0,   0,    0 },
+  /* GNUCXX   */  { 0,  1,  1,   0,  0,   1,   1,   0,   0,   0,    0 },
+  /* CXX98    */  { 0,  1,  1,   0,  1,   1,   1,   0,   0,   0,    0 },
+  /* GNUCXX11 */  { 1,  1,  1,   0,  0,   1,   1,   1,   1,   1,    0 },
+  /* CXX11    */  { 1,  1,  1,   0,  1,   1,   1,   1,   1,   1,    0 },
+  /* GNUCXX1Y */  { 1,  1,  1,   0,  0,   1,   1,   1,   1,   1,    1 },
+  /* CXX1Y    */  { 1,  1,  1,   0,  1,   1,   1,   1,   1,   1,    1 },
+  /* ASM      */  { 0,  0,  1,   0,  0,   1,   0,   0,   0,   0,    0 }
   /* xid should be 1 for GNUC99, STDC99, GNUCXX, CXX98, GNUCXX11, CXX11,
      GNUCXX1Y, and CXX1Y when no longer experimental (when all uses of
      identifiers in the compiler have been audited for correct handling
@@ -126,6 +127,7 @@ cpp_set_lang (cpp_reader *pfile, enum c_
   CPP_OPTION (pfile, uliterals)			 = l->uliterals;
   CPP_OPTION (pfile, rliterals)			 = l->rliterals;
   CPP_OPTION (pfile, user_literals)		 = l->user_literals;
+  CPP_OPTION (pfile, binary_constants)		 = l->binary_constants;
 }
 
 /* Initialize library global state.  */
--- libcpp/expr.c.jj	2013-01-15 09:04:55.000000000 +0100
+++ libcpp/expr.c	2013-04-27 08:38:14.453026746 +0200
@@ -621,7 +621,7 @@ cpp_classify_number (cpp_reader *pfile,
 	  && CPP_OPTION (pfile, cpp_warn_long_long))
         {
           const char *message = CPP_OPTION (pfile, cplusplus) 
-		                ? N_("use of C++0x long long integer constant")
+				? N_("use of C++11 long long integer constant")
 		                : N_("use of C99 long long integer constant");
 
 	  if (CPP_OPTION (pfile, c99))
@@ -639,9 +639,14 @@ cpp_classify_number (cpp_reader *pfile,
   if ((result & CPP_N_IMAGINARY) && CPP_PEDANTIC (pfile))
     cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
 			 "imaginary constants are a GCC extension");
-  if (radix == 2 && CPP_PEDANTIC (pfile))
+  if (radix == 2
+      && !CPP_OPTION (pfile, binary_constants)
+      && CPP_PEDANTIC (pfile))
     cpp_error_with_line (pfile, CPP_DL_PEDWARN, virtual_location, 0,
-			 "binary constants are a GCC extension");
+			 CPP_OPTION (pfile, cplusplus)
+			 ? "binary constants are a C++1y feature "
+			   "or GCC extension"
+			 : "binary constants are a GCC extension");
 
   if (radix == 10)
     result |= CPP_N_DECIMAL;
--- gcc/testsuite/g++.dg/cpp/limits.C.jj	2012-06-06 20:35:54.000000000 +0200
+++ gcc/testsuite/g++.dg/cpp/limits.C	2013-04-27 08:45:20.036719569 +0200
@@ -4,13 +4,13 @@
 #include <limits>
 
 // Compiling this with -pedantic was wrongly triggering this error:
-// libstdc++-v3/include/limits:1269:45: warning : use of C++0x long long integer constant [-Wlong-long]
+// libstdc++-v3/include/limits:1269:45: warning : use of C++11 long long integer constant [-Wlong-long]
 //       min() _GLIBCXX_USE_NOEXCEPT { return -__LONG_LONG_MAX__ - 1; }
 //                                             ^
-// libstdc++-v3/include/limits:1272:44: warning : use of C++0x long long integer constant [-Wlong-long]
+// libstdc++-v3/include/limits:1272:44: warning : use of C++11 long long integer constant [-Wlong-long]
 //       max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__; }
 //                                            ^
-// libstdc++-v3/include/limits:1342:44: warning : use of C++0x long long integer constant [-Wlong-long]
+// libstdc++-v3/include/limits:1342:44: warning : use of C++11 long long integer constant [-Wlong-long]
 //       max() _GLIBCXX_USE_NOEXCEPT { return __LONG_LONG_MAX__ * 2ULL + 1
 //                                            ^
 
--- gcc/testsuite/g++.dg/system-binary-constants-1.C.jj	2012-05-17 08:40:34.000000000 +0200
+++ gcc/testsuite/g++.dg/system-binary-constants-1.C	2013-04-27 08:47:50.600834156 +0200
@@ -14,5 +14,5 @@ foo (void)
 					    warning.  */
   return 23;
 #endif
-  return 0b1101; /* { dg-warning "binary constants are a GCC extension" } */
+  return 0b1101; /* { dg-warning "binary constants are a C..1y feature or GCC extension" } */
 }
--- gcc/testsuite/g++.dg/cpp1y/system-binary-constants-1.C.jj	2013-04-27 08:43:44.084238188 +0200
+++ gcc/testsuite/g++.dg/cpp1y/system-binary-constants-1.C	2013-04-27 08:52:35.687230081 +0200
@@ -0,0 +1,14 @@
+// Origin: Dodji Seketeli <dodji@redhat.com>
+// { dg-options "-std=c++1y -pedantic-errors" }
+// { dg-do compile } 
+
+#include "../system-binary-constants-1.h"
+
+int
+foo (void)
+{
+#if BINARY_INT_CONSTANT_IN_SYSTEM_HEADER
+  return 23;
+#endif
+  return 0b1101; // { dg-bogus "binary constants are a C..1y feature or GCC extension" }
+}
