Gcc 修复Mavericks上的Rubyracer/libv8（0.12.1）安装

好吧，我对这个已经束手无策了。也有一些类似的问题，但它们都提到了Rubyracer 0.10，他们大多得出结论，升级到0.12可以解决这个问题

我也有类似的问题，但是当我使用0.12时

类似问题

我在使用“标准”（xcode？）gcc以及自制的apple-gcc42和gcc时遇到问题。我已经尝试了

——使用-system-v8

和

——不使用-system-v8

，再次尝试，没有骰子

以下是一些日志：

从零开始… 尝试捆绑安装

安装libv8（3.16.14.3）
Gem:：Installer:：ExtensionBuildError:错误：无法生成Gem本机扩展。
/Users/chris/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb
创建Makefile
为x64编译v8
使用python 2.7.5
配置为：--prefix=/Applications/Xcode.app/Contents/Developer/usr--gxx include dir=/usr/include/c++/4.2.1
找不到v8正式支持的编译器。
建议使用GCC v4.4或更高版本
使用编译器：g++
配置为：--prefix=/Applications/Xcode.app/Contents/Developer/usr--gxx include dir=/usr/include/c++/4.2.1
找不到v8正式支持的编译器。
建议使用GCC v4.4或更高版本
../src/cached powers.cc:136:18:错误：未使用的变量“kCachedPowersLength”[-Werror，-Wunused const variable]
静态常量int kCachedPower长度=数组大小（kCachedPower）；
^
生成1个错误。
make[1]：***[/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached powers.o]错误1
make:**[x64.release]错误2
/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:36:in‘block in verify_installation’：libv8安装不正确，应为二进制v8归档文件“/Users/chris/.rvm/gems/ruby-1.9.3”-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/tools/gyp/libv8_base.a'不存在，但未找到它（libv8:：Location:：vendor:：ArchiveNotFound）
来自/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:在'each'中
来自/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:在“验证安装”中
来自/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:26:in'install！'
来自extconf.rb:7:in`'
GYP_发电机=制造\
build/gyp/gyp——生成器输出=“out”build/all.gyp\
-Ibuild/standalone.gypi——深度=\
-Dv8_目标_拱=x64\
-S.x64-Dv8_启用_回溯=1-Dv8_可以使用_vfp2_指令=true-Darm_fpu=vfpv2-Dv8_可以使用_vfp3_指令=true-Darm_fpu=vfpv3
CXX（target）/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o
CXX（target）/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser\u lib/src/atomicops\u internal\u x86\u gcc.o
CXX（target）/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum.o
CXX（target）/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum dtoa.o
CXX（target）/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached powers.o
Gem文件仍将安装在/Users/chris/.rvm/gems/ruby-1.9.3中-p448@website/gems/libv8-3.16.14.3进行检查。
结果记录到/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/gem_make.out
安装libv8（3.16.14.3）时出错，捆绑程序无法继续。

糟糕的时刻。 错误消息建议建议使用gcc 4.4+。我们可以做到

$ export CXX=/usr/local/Cellar/gcc48/4.8.2/bin/g++-4.8 
$ export CPP=/usr/local/Cellar/gcc48/4.8.2/bin/cpp-4.8 
$ export CC=/usr/local/Cellar/gcc48/4.8.2/bin/gcc-4.8 
$ which $CXX
/usr/local/Cellar/gcc48/4.8.2/bin/g++-4.8
$ which $CPP
/usr/local/Cellar/gcc48/4.8.2/bin/cpp-4.8
$ which $CC
/usr/local/Cellar/gcc48/4.8.2/bin/gcc-4.8
$ bundle install
…
Installing libv8 (3.16.14.3) 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /Users/chris/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb 
creating Makefile
Compiling v8 for x64
Using python 2.7.5
Using compiler: /usr/local/Cellar/gcc48/4.8.2/bin/g++-4.8
g++-4.8: error: unrecognized command line option '-Wnewline-eof'
make[1]: *** [/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o] Error 1
make: *** [x64.release] Error 2
/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/tools/gyp/libv8_base.a'to exist, but it was not found (Libv8::Location::Vendor::ArchiveNotFound)
    from /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:in `each'
    from /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:in `verify_installation!'
    from /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:26:in `install!'
    from extconf.rb:7:in `<main>'
GYP_GENERATORS=make \
    build/gyp/gyp --generator-output="out" build/all.gyp \
                  -Ibuild/standalone.gypi --depth=. \
                  -Dv8_target_arch=x64 \
                  -S.x64  -Dv8_enable_backtrace=1 -Dv8_can_use_vfp2_instructions=true -Darm_fpu=vfpv2 -Dv8_can_use_vfp3_instructions=true -Darm_fpu=vfpv3
  CXX(target) /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o


Gem files will remain installed in /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3 for inspection.
Results logged to /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/gem_make.out

An error occurred while installing libv8 (3.16.14.3), and Bundler cannot continue.
Make sure that `gem install libv8 -v '3.16.14.3'` succeeds before bundling.

$export CXX=/usr/local/ceral/gcc48/4.8.2/bin/g++-4.8
$export CPP=/usr/local/Cellar/gcc48/4.8.2/bin/CPP-4.8
$export CC=/usr/local/Cellar/gcc48/4.8.2/bin/gcc-4.8
$CXX是哪个$CXX
/usr/local/Cell/gcc48/4.8.2/bin/g++-4.8
$CPP，哪个$CPP
/usr/local/Cell/gcc48/4.8.2/bin/cpp-4.8
$CC，哪一个$CC
/usr/local/Cell/gcc48/4.8.2/bin/gcc-4.8
$bundle安装
…
安装libv8（3.16.14.3）
Gem:：Installer:：ExtensionBuildError:错误：无法生成Gem本机扩展。
/Users/chris/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb
创建Makefile
为x64编译v8
使用python 2.7.5
使用编译器：/usr/local/ceral/gcc48/4.8.2/bin/g++-4.8
g++-4.8:错误：无法识别的命令行选项“-Wnewline eof”
make[1]：***[/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o]错误1
make:**[x64.release]错误2
/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:36:in‘block in verify_installation’：libv8安装不正确，应为二进制v8归档文件“/Users/chris/.rvm/gems/ruby-1.9.3”-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/tools/gyp/libv8_base.a'不存在，但未找到它（libv8:：Location:：vendor:：ArchiveNotFound）
来自/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:在'each'中
来自/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:在“验证安装”中
来自/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:26:in'install！'
来自extconf.rb:7:in`'
GYP_发电机=制造\
build/gyp/gyp——生成器输出=“out”build/all.gyp\
-Ibuild/standalone.gypi——深度=\
-Dv8_目标_拱=x64\
-S.x64-Dv8\u启用\u回溯=1-Dv8\u可以使用\u vfp2\u指令=true-Darm\u fpu=v
Installing libv8 (3.16.14.3) 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

    /Users/chris/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb 
creating Makefile
Compiling v8 for x64
Using python 2.7.5
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Unable to find a compiler officially supported by v8.
It is recommended to use GCC v4.4 or higher
Using compiler: g++
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Unable to find a compiler officially supported by v8.
It is recommended to use GCC v4.4 or higher
../src/cached-powers.cc:136:18: error: unused variable 'kCachedPowersLength' [-Werror,-Wunused-const-variable]
static const int kCachedPowersLength = ARRAY_SIZE(kCachedPowers);
                 ^
1 error generated.
make[1]: *** [/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached-powers.o] Error 1
make: *** [x64.release] Error 2
/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/tools/gyp/libv8_base.a'to exist, but it was not found (Libv8::Location::Vendor::ArchiveNotFound)
    from /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:in `each'
    from /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:in `verify_installation!'
    from /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:26:in `install!'
    from extconf.rb:7:in `<main>'
GYP_GENERATORS=make \
    build/gyp/gyp --generator-output="out" build/all.gyp \
                  -Ibuild/standalone.gypi --depth=. \
                  -Dv8_target_arch=x64 \
                  -S.x64  -Dv8_enable_backtrace=1 -Dv8_can_use_vfp2_instructions=true -Darm_fpu=vfpv2 -Dv8_can_use_vfp3_instructions=true -Darm_fpu=vfpv3
  CXX(target) /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o
  CXX(target) /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o
  CXX(target) /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum.o
  CXX(target) /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum-dtoa.o
  CXX(target) /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached-powers.o


Gem files will remain installed in /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3 for inspection.
Results logged to /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/gem_make.out

An error occurred while installing libv8 (3.16.14.3), and Bundler cannot continue.

$ export CXX=/usr/local/Cellar/gcc48/4.8.2/bin/g++-4.8 
$ export CPP=/usr/local/Cellar/gcc48/4.8.2/bin/cpp-4.8 
$ export CC=/usr/local/Cellar/gcc48/4.8.2/bin/gcc-4.8 
$ which $CXX
/usr/local/Cellar/gcc48/4.8.2/bin/g++-4.8
$ which $CPP
/usr/local/Cellar/gcc48/4.8.2/bin/cpp-4.8
$ which $CC
/usr/local/Cellar/gcc48/4.8.2/bin/gcc-4.8
$ bundle install
…
Installing libv8 (3.16.14.3) 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /Users/chris/.rvm/rubies/ruby-1.9.3-p448/bin/ruby extconf.rb 
creating Makefile
Compiling v8 for x64
Using python 2.7.5
Using compiler: /usr/local/Cellar/gcc48/4.8.2/bin/g++-4.8
g++-4.8: error: unrecognized command line option '-Wnewline-eof'
make[1]: *** [/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o] Error 1
make: *** [x64.release] Error 2
/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/tools/gyp/libv8_base.a'to exist, but it was not found (Libv8::Location::Vendor::ArchiveNotFound)
    from /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:in `each'
    from /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:35:in `verify_installation!'
    from /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/location.rb:26:in `install!'
    from extconf.rb:7:in `<main>'
GYP_GENERATORS=make \
    build/gyp/gyp --generator-output="out" build/all.gyp \
                  -Ibuild/standalone.gypi --depth=. \
                  -Dv8_target_arch=x64 \
                  -S.x64  -Dv8_enable_backtrace=1 -Dv8_can_use_vfp2_instructions=true -Darm_fpu=vfpv2 -Dv8_can_use_vfp3_instructions=true -Darm_fpu=vfpv3
  CXX(target) /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o


Gem files will remain installed in /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3 for inspection.
Results logged to /Users/chris/.rvm/gems/ruby-1.9.3-p448@website/gems/libv8-3.16.14.3/ext/libv8/gem_make.out

An error occurred while installing libv8 (3.16.14.3), and Bundler cannot continue.
Make sure that `gem install libv8 -v '3.16.14.3'` succeeds before bundling.

$ brew install v8
==> Downloading https://github.com/v8/v8/archive/3.21.17.tar.gz
Already downloaded: /Library/Caches/Homebrew/v8-3.21.17.tar.gz
==> Checking out http://gyp.googlecode.com/svn/trunk
==> make native -j4 library=shared snapshot=on console=readline i18nsupport=off
OK, so this is now sorted. 


For future people with the same problem, I was suffering from having ruby built against a previous installation of OS X. 


Fixed by completely nuking rvm and starting from scratch, though I imagine you could just uninstall/reinstall the offending ruby.


More details on how the problem was solved here:


https://github.com/cowboyd/libv8/issues/120
I had this same problem when I upgraded from OSX Mountain Lion to OSX Mavericks.
The patch level of ruby 1.8.7 apparently matters.  


Upgrading from ruby-1.8.7-p354 to ruby-1.8.7-375 did the trick for me.


libv8 (3.16.14.3-x86_64-darwin-13) and the therubyracer (0.12.0) gems installed without problem.


assuming you use rbenv:


rbenv versions
  system
  * 1.8.7-p354
  2.0.0-rc2

rbenv uninstall 1.8.7-p354
rbenv install 1.8.7-p375

rbenv versions
  system
  * 1.8.7-p375
  2.0.0-rc2

bundle install

sudo apt-get install nodejs

bundle update therubyracer