无法安装therubyracer

Question

我最近分叉从GitHub存储库，但是，当我尝试运行“捆绑安装，”我碰到下面的错误输出：

Robert-Quinns-MacBook-Pro:~ robertquinn$ gem install therubyracer 

Building native extensions. This could take a while... 
ERROR: Error installing therubyracer: 
    ERROR: Failed to build gem native extension. 

     /Users/robertquinn/.rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb 
creating Makefile 
Compiling v8 for x64 
Using python 2.5.4 
Unable to find a compiler officially supported by v8. 
It is recommended to use GCC v4.4 or higher 
Using compiler: g++ 
Unable to find a compiler officially supported by v8. 
It is recommended to use GCC v4.4 or higher 
    File "./gyp-mac-tool", line 167 
    fd = os.open(lockfile, os.O_RDONLY|os.O_NOCTTY|os.O_CREAT, 0o666) 
                   ^
SyntaxError: invalid syntax 
make[1]: *** [/Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/libpreparser_lib.a] Error 1 
make: *** [x64.release] Error 2 
/Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/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/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/ext/libv8/location.rb:35:in `each' 
    from /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/ext/libv8/location.rb:35:in `verify_installation!' 
    from /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/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_can_use_vfp_instructions=true 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum-dtoa.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached-powers.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/conversions.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/diy-fp.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/dtoa.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fast-dtoa.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fixed-dtoa.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/once.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparse-data.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser-api.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/scanner.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/strtod.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/token.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/unicode.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/utils.o 
    LIBTOOL-STATIC /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/libpreparser_lib.a 


Gem files will remain installed in /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17 for inspection. 
Results logged to /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/ext/libv8/gem_make.out 
Robert-Quinns-MacBook-Pro:~ robertquinn$ 
Robert-Quinns-MacBook-Pro:~ robertquinn$ 

这里有一些事情我已经尝试：

gem uninstall libv8 
brew install v8 
gem install therubyracer 

除了：

RUBYOPT=-rrubygems gem install therubyracer 

任何想法？

编辑

输入以下命令后：

$ brew tap homebrew/dupes 
$ brew install apple-gcc42 

这里是包括这些命令的结果的完整输出：

Robert-Quinns-MacBook-Pro:~ robertquinn$ brew tap homebrew/dupes 
Cloning into /usr/local/Library/Taps/homebrew-dupes... 
remote: Counting objects: 894, done. 
remote: Compressing objects: 100% (488/488), done. 
remote: Total 894 (delta 491), reused 795 (delta 406) 
Receiving objects: 100% (894/894), 154.86 KiB | 235 KiB/s, done. 
Resolving deltas: 100% (491/491), done. 
Tapped 41 formula 
Robert-Quinns-MacBook-Pro:~ robertquinn$ brew install apple-gcc42 
==> Downloading http://r.research.att.com/tools/gcc-42-5666.3-darwin11.pkg 
######################################################################## 100.0% 
==> Caveats 
NOTE: 
This formula provides components that were removed from XCode in the 4.2 
release. There is no reason to install this formula if you are using a 
version of XCode prior to 4.2. 

This formula contains compilers built from Apple's GCC sources, build 
5666.3, available from: 

    http://opensource.apple.com/tarballs/gcc 

All compilers have a `-4.2` suffix. A GFortran compiler is also included. 
==> Summary 
/usr/local/Cellar/apple-gcc42/4.2.1-5666.3: 104 files, 75M, built in 110 seconds 
Robert-Quinns-MacBook-Pro:~ robertquinn$ gem install therubyracer 
Building native extensions. This could take a while... 
ERROR: Error installing therubyracer: 
    ERROR: Failed to build gem native extension. 

     /Users/robertquinn/.rvm/rubies/ruby-1.9.3-p194/bin/ruby extconf.rb 
creating Makefile 
Compiling v8 for x64 
Using python 2.5.4 
Unable to find a compiler officially supported by v8. 
It is recommended to use GCC v4.4 or higher 
Using compiler: g++ 
Unable to find a compiler officially supported by v8. 
It is recommended to use GCC v4.4 or higher 
    File "./gyp-mac-tool", line 167 
    fd = os.open(lockfile, os.O_RDONLY|os.O_NOCTTY|os.O_CREAT, 0o666) 
                   ^
SyntaxError: invalid syntax 
make[1]: *** [/Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/libpreparser_lib.a] Error 1 
make: *** [x64.release] Error 2 
/Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/ext/libv8/location.rb:36:in `block in verify_installation!': libv8 did not install properly, expected binary v8 archive '/Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/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/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/ext/libv8/location.rb:35:in `each' 
    from /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/ext/libv8/location.rb:35:in `verify_installation!' 
    from /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/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_can_use_vfp_instructions=true 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/allocation.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/atomicops_internals_x86_gcc.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/bignum-dtoa.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/cached-powers.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/conversions.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/diy-fp.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/dtoa.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fast-dtoa.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/fixed-dtoa.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/once.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparse-data.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/preparser-api.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/scanner.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/strtod.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/token.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/unicode.o 
    CXX(target) /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/obj.target/preparser_lib/src/utils.o 
    LIBTOOL-STATIC /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/vendor/v8/out/x64.release/libpreparser_lib.a 


Gem files will remain installed in /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17 for inspection. 
Results logged to /Users/robertquinn/.rvm/gems/ruby-1.9.3-p194/gems/libv8-3.11.8.17/ext/libv8/gem_make.out 
Robert-Quinns-MacBook-Pro:~ robertquinn$ 

Answer 1

它的失败，你有没有编译你的系统。

安装gcc编译

例如：https://github.com/kennethreitz/osx-gcc-installer

或（自制）：

$ brew tap homebrew/dupes 
$ brew install apple-gcc42