c-opts.c (c_common_post_options): Default to C++14.

gcc/c-family/
	* c-opts.c (c_common_post_options): Default to C++14.
gcc/testsuite/
	* lib/target-supports.exp (cxx_default): Set to C++14.

From-SVN: r225272

gcc/c-family/ChangeLog

 2015-07-01  Jason Merrill  <jason@redhat.com>
 
+	* c-opts.c (c_common_post_options): Default to C++14.
+
 	* c-opts.c (c_common_post_options): Highest ABI level is now 10.
 
 2015-06-30  Edward Smith-Rowland  <3dw4rd@verizon.net>

gcc/c-family/c-opts.c

@@ -889,9 +889,9 @@ c_common_post_options (const char **pfilename)
   if (flag_abi_version == 0)
     flag_abi_version = 10;
 
-  /* Set C++ standard to C++98 if not specified on the command line.  */
+  /* Set C++ standard to C++14 if not specified on the command line.  */
   if (c_dialect_cxx () && cxx_dialect == cxx_unset)
-    set_std_cxx98 (/*ISO*/false);
+    set_std_cxx14 (/*ISO*/false);
 
   if (cxx_dialect >= cxx11)
     {

gcc/testsuite/ChangeLog

+2015-07-01  Jason Merrill  <jason@redhat.com>
+
+	* lib/target-supports.exp (cxx_default): Set to C++14.
+
 2015-07-01  Tom de Vries  <tom@codesourcery.com>
 
 	PR testsuite/66723

gcc/testsuite/lib/target-supports.exp

@@ -5935,7 +5935,7 @@ proc check_effective_target_c++ { } {
  return 0
 }
 
-set cxx_default "c++98"
+set cxx_default "c++14"
 # Check whether the current active language standard supports the features
 # of C++11/C++14 by checking for the presence of one of the -std flags.
 # This assumes that the default for the compiler is $cxx_default, and that