give UniquePersistent full move semantics

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 307 matching lines @@
           '-Wall',
           '<(werror)',
           '-Wno-unused-parameter',
           '-Wno-long-long',
           '-pthread',
           '-fno-exceptions',
           '-pedantic',
           # Don't warn about the "struct foo f = {0};" initialization pattern.
           '-Wno-missing-field-initializers',
         ],
-        'cflags_cc': [ '-Wnon-virtual-dtor', '-fno-rtti', '-std=gnu++0x' ],
+        'cflags_cc': [ '-Wnon-virtual-dtor', '-fno-rtti', '-std=gnu++11' ],
         'ldflags': [ '-pthread', ],
         'conditions': [
           [ 'host_arch=="ppc64"', {
             'cflags': [ '-mminimal-toc' ],
           }],
           [ 'visibility=="hidden" and v8_enable_backtrace==0', {
             'cflags': [ '-fvisibility=hidden' ],
           }],
           [ 'component=="shared_library"', {
             'cflags': [ '-fPIC', ],
@@ skipping 26 matching lines @@
     ['OS=="qnx"', {
       'target_defaults': {
         'cflags': [
           '-Wall',
           '<(werror)',
           '-Wno-unused-parameter',
           '-fno-exceptions',
           # Don't warn about the "struct foo f = {0};" initialization pattern.
           '-Wno-missing-field-initializers',
         ],
-        'cflags_cc': [ '-Wnon-virtual-dtor', '-fno-rtti', '-std=gnu++0x' ],
+        'cflags_cc': [ '-Wnon-virtual-dtor', '-fno-rtti', '-std=gnu++11' ],
         'conditions': [
           [ 'visibility=="hidden"', {
             'cflags': [ '-fvisibility=hidden' ],
           }],
           [ 'component=="shared_library"', {
             'cflags': [ '-fPIC' ],
           }],
         ],
         'target_conditions': [
           [ '_toolset=="host" and host_os=="linux"', {
@@ skipping 130 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
+              'CLANG_CXX_LIBRARY': 'libc++',  # -stdlib=libc++

[jamesr, 2015/03/04 18:52:37]

We support OS X 10.6 which doesn't support C++11, IIUC

[Nico, 2015/03/04 18:57:56]

Yes, this won't work in a chromium build. (standalone.gypi isn't used in a
chromium build, so this is fine, but if any v8 code that's used in chromium
tries to use c++11 library features, things won't work)

[dcarney, 2015/03/04 19:40:24]

okay, good to know.  I was just trying to get the test working on my machine, so
i'll revert this file.

+             },
           }],
         ],
         'target_conditions': [
           ['_type!="static_library"', {
             'xcode_settings': {'OTHER_LDFLAGS': ['-Wl,-search_paths_first']},
           }],
         ],  # target_conditions
       },  # target_defaults
     }],  # OS=="mac"
     ['clang==1 and "<(GENERATOR)"=="ninja"', {
@@ skipping 33 matching lines @@
     ['use_goma==1 and ("<(GENERATOR)"=="ninja" or clang==1)', {
       'make_global_settings': [
        ['CC_wrapper', '<(gomadir)/gomacc'],
        ['CXX_wrapper', '<(gomadir)/gomacc'],
        ['CC.host_wrapper', '<(gomadir)/gomacc'],
        ['CXX.host_wrapper', '<(gomadir)/gomacc'],
       ],
     }],
   ],
 }