Use C++11 / gnu++11, not 0x

build/standalone.gypi

 # Copyright 2012 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
 #       copyright notice, this list of conditions and the following
 #       disclaimer in the documentation and/or other materials provided
@@ skipping 683 matching lines @@
           '-pthread',
           '-pedantic',
           # Don't warn about the "struct foo f = {0};" initialization pattern.
           '-Wno-missing-field-initializers',
           '-Wno-gnu-zero-variadic-macro-arguments',
         ],
         'cflags_cc': [
           '-Wnon-virtual-dtor',
           '-fno-exceptions',
           '-fno-rtti',
-          '-std=gnu++0x',
+          '-std=gnu++11',
         ],
         'ldflags': [ '-pthread', ],
         'conditions': [
           # Don't warn about TRACE_EVENT_* macros with zero arguments passed to
           # ##__VA_ARGS__. C99 strict mode prohibits having zero variadic macro
           # arguments in gcc.
           [ 'clang==0', {
             'cflags!' : [
               '-pedantic' ,
               # Don't warn about unrecognized command line option.
@@ skipping 29 matching lines @@
           '<(werror)',
           '-Wno-unused-parameter',
           # Don't warn about the "struct foo f = {0};" initialization pattern.
           '-Wno-missing-field-initializers',
           '-Wno-gnu-zero-variadic-macro-arguments',
         ],
         'cflags_cc': [
           '-Wnon-virtual-dtor',
           '-fno-exceptions',
           '-fno-rtti',
-          '-std=gnu++0x',
+          '-std=gnu++11',
         ],
         'conditions': [
           [ 'visibility=="hidden"', {
             'cflags': [ '-fvisibility=hidden' ],
           }],
           [ 'component=="shared_library"', {
             'cflags': [ '-fPIC' ],
           }],
         ],
         'target_conditions': [
@@ skipping 209 matching lines @@
         },
         'conditions': [
           ['werror==""', {
             'xcode_settings': {'GCC_TREAT_WARNINGS_AS_ERRORS': 'NO'},
           }, {
             'xcode_settings': {'GCC_TREAT_WARNINGS_AS_ERRORS': 'YES'},
           }],
           ['clang==1', {
             'xcode_settings': {
               'GCC_VERSION': 'com.apple.compilers.llvm.clang.1_0',
-              'CLANG_CXX_LANGUAGE_STANDARD': 'gnu++0x',  # -std=gnu++0x
+              'CLANG_CXX_LANGUAGE_STANDARD': 'c++11',  # -std=c++11
             },
             'conditions': [
               ['v8_target_arch=="x64" or v8_target_arch=="arm64" \
                 or v8_target_arch=="mips64el"', {
                 'xcode_settings': {'WARNING_CFLAGS': ['-Wshorten-64-to-32']},
               }],
             ],
           }],
         ],
         'target_conditions': [
@@ skipping 391 matching lines @@
               '-fsanitize=cfi-vcall',
               '-fsanitize=cfi-derived-cast',
               '-fsanitize=cfi-unrelated-cast',
             ],
           }],
         ],
       },
     }],
   ],
 }