re PR libstdc++/59087 (Issues including complex.h in C++11/1y mode because of C's complex.h)

2014-01-02  Marc Glisse  <marc.glisse@inria.fr>

	PR c++/59087
gcc/cp/
	* parser.c (cp_parser_userdef_numeric_literal): Mention
	-fext-numeric-literals in the message.

From-SVN: r206304

gcc/cp/ChangeLog

 2014-01-02  Marc Glisse  <marc.glisse@inria.fr>
 
+	PR c++/59087
+	* parser.c (cp_parser_userdef_numeric_literal): Mention
+	-fext-numeric-literals in the message.
+
+2014-01-02  Marc Glisse  <marc.glisse@inria.fr>
+
 	PR c++/59641
 	* call.c (build_conditional_expr_1): Check the return value of
 	force_rvalue.

gcc/cp/parser.c

@@ -3925,6 +3925,9 @@ cp_parser_userdef_numeric_literal (cp_parser *parser)
   release_tree_vector (args);
 
   error ("unable to find numeric literal operator %qD", name);
+  if (!cpp_get_options (parse_in)->ext_numeric_literals)
+    inform (token->location, "use -std=gnu++11 or -fext-numeric-literals "
+	    "to enable more built-in suffixes");
   return error_mark_node;
 }