OS X 10.8 - 尝试执行'/usr/bin/i686-apple-darwin11-gcc-4.2.1'错误 - 安装json gem [英] OS X 10.8 - error trying to exec '/usr/bin/i686-apple-darwin11-gcc-4.2.1' - installing json gem

问题描述

在安装json gem的原生扩展时遇到问题。

在10.8之前，我安装了命令行工具。 RVM与Ruby 1.9.2。

升级到10.8并做了以下工作：

• sudo chown -R whoami / usr / local


• brew更新


• brew点击homebrew / dupes
  
• brew安装Apple-gcc42


• 安装XCode 4.4


• 安装的命令行工具XCode 4.4


• 导出CC = / usr / gcc-4.2 /usr/bin/gcc-4.2


• edit：sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer

ul>



在安装json gem时，我仍然得到以下输出：



 ➽ gem install json -v'1.7.4'
构建原生扩展。这可能需要一段时间... 
错误：安装json时出错：
错误：无法构建gem本机扩展。 
 
 /Users/vincent/.rvm/rubies/ruby-1.9.2-p320/bin/ruby extconf.rb 
创建Makefile 
 
 make 
 /usr/bin/gcc-4.2 -I。 -I / Users / vincent / .rvm / rubies / ruby​​-1.9.2-p320 / include / ruby​​-1.9.1 / x86_64-darwin11.3.0 -I / Users / vincent / .rvm / rubies / ruby​​-1.9.2 -p320 / include / ruby​​-1.9.1 / ruby​​ / backward -I / Users / vincent / .rvm / rubies / ruby​​-1.9.2-p320 / include / ruby​​-1.9.1 -I。 -DJSON_GENERATOR -I / Users / vincent / .rvm / usr / include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -fno-common -O3 -ggdb -Wextra -Wno -unused-parameter -Wno-括号-Wpointer-arith -Wwrite-strings -Wno-缺少字段初始化程序-Wshorten-64-to-32 -Wno-long-long -fno-common -pipe -O3 -Wall -O0 -ggdb -o generator.o -c generator.c 
 gcc-4.2 ：错误尝试执行'/usr/bin/i686-apple-darwin11-gcc-4.2.1'：execvp：没有这样的文件或目录
 make：*** [generator.o]错误255 
 
 
 Gem文件将保留安装在/Users/vincent/.rvm/gems/ruby-1.9.2-p320@hshmrk/gems/json-1.7.4进行检查。 
结果记录到/Users/vincent/.rvm/gems/ruby-1.9.2-p320@hshmrk/gems/json-1.7.4/ext/json/ext/generator/gem_make.out 
  

这里的任何帮助？我如何调试我的构建环境？不是专家，但我认为json gem安装程序忽略了我的环境，因为它使用的是我的系统中不存在的GCC版本，并且brew安装程序也没有创建它。

 ➽gcc-4.2 
 i686-apple-darwin11-gcc-4.2.1：无输入文件
 
 ➽哪个gcc-4.2 
 /usr/local/bin/gcc-4.2 
 
➽ls /usr/bin/i686-apple-darwin11-gcc-4.2.1 
 ls ：/usr/bin/i686-apple-darwin11-gcc-4.2.1：没有这样的文件或目录
  

我也尝试了symlinking ➽sudo link /usr/local/bin/gcc-4.2 /usr/bin/i686-apple-darwin11-gcc-4.2.1 。但是这给了vfork超时错误。



编辑：

 ➽ brew doctor 
 gcc-4.2：尝试执行错误'/usr/bin/i686-apple-darwin11-gcc-4.2.1'：execvp：没有这样的文件或目录
警告：X11未安装。 
您没有安装X11作为OS X安装的一部分。 
这不是所有公式都需要的，但有些是预期的。 
您可以从以下地址下载最新版本的XQuartz：
 https://xquartz.macosforge.org 
  

edit2：



确实运行了xcode-select XCode



edit3：

  sudo xcode-select -switch / usr / bin 
 sudo ln -sf /usr/bin/llvm-gcc-4.2 / usr /bin/gcc-4.2 
  

这个修正了它！基本上，你告诉OS X使用/ usr / bin文件夹进行编译，然后将llvm-gcc-4.2编译器链接到旧版本的位置。作品！ BAM！





来源： http://jtimberman.housepub.org/blog/2012/02/26/xcode-command-line-tools/

解决方案

  sudo ln -sf / 
 usr / bin / llvm-gcc-4.2 /usr/bin/gcc-4.2 
  

我用xcode - 选择XCode和命令行工具。他们都工作。
我也卸载了brew-apple-gcc42，它仍然有效。
出口CC也不需要。





所以基本上只是链接。希望这可以解决人们遇到的一些问题。




I've just upgraded to OS X Mountain Lion (regretting it already).

Having issues with installing the json gem's native extentions.

Before 10.8 I had Command Line Tools installed. RVM with Ruby 1.9.2.

Upgraded to 10.8 and did the following stuff:

• sudo chown -R whoami /usr/local
• brew update
• brew tap homebrew/dupes
• brew install apple-gcc42
• Installed XCode 4.4
• Installed Command Line Tools for XCode 4.4
• export CC=/usr/local/bin/gcc-4.2 in bash_profile
• sudo ln -s /usr/local/bin/gcc-4.2 /usr/bin/gcc-4.2
• edit: sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer

I still get the following output when installing the json gem:

➽ gem install json -v '1.7.4'
Building native extensions.  This could take a while...
ERROR:  Error installing json:
    ERROR: Failed to build gem native extension.

        /Users/vincent/.rvm/rubies/ruby-1.9.2-p320/bin/ruby extconf.rb
creating Makefile

make
/usr/bin/gcc-4.2 -I. -I/Users/vincent/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/x86_64-darwin11.3.0 -I/Users/vincent/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1/ruby/backward -I/Users/vincent/.rvm/rubies/ruby-1.9.2-p320/include/ruby-1.9.1 -I. -DJSON_GENERATOR -I/Users/vincent/.rvm/usr/include -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE   -fno-common -O3 -ggdb -Wextra -Wno-unused-parameter -Wno-parentheses -Wpointer-arith -Wwrite-strings -Wno-missing-field-initializers -Wshorten-64-to-32 -Wno-long-long  -fno-common -pipe -O3 -Wall -O0 -ggdb  -o generator.o -c generator.c
gcc-4.2: error trying to exec '/usr/bin/i686-apple-darwin11-gcc-4.2.1': execvp: No such file or directory
make: *** [generator.o] Error 255


Gem files will remain installed in /Users/vincent/.rvm/gems/ruby-1.9.2-p320@hshmrk/gems/json-1.7.4 for inspection.
Results logged to /Users/vincent/.rvm/gems/ruby-1.9.2-p320@hshmrk/gems/json-1.7.4/ext/json/ext/generator/gem_make.out

Any help here? How can I debug my build env? Not an expert when it comes to this but I think the json gem installer is ignoring my environment as it's using a version of GCC that doesn't exist on my system and the brew installer doesn't create it either.

➽ gcc-4.2
i686-apple-darwin11-gcc-4.2.1: no input files

➽ which gcc-4.2
/usr/local/bin/gcc-4.2

➽ ls /usr/bin/i686-apple-darwin11-gcc-4.2.1
ls: /usr/bin/i686-apple-darwin11-gcc-4.2.1: No such file or directory

I also tried symlinking ➽ sudo link /usr/local/bin/gcc-4.2 /usr/bin/i686-apple-darwin11-gcc-4.2.1. But that gave a vfork timeout error.

edit:

➽ brew doctor
gcc-4.2: error trying to exec '/usr/bin/i686-apple-darwin11-gcc-4.2.1': execvp: No such file or directory
Warning: X11 is not installed.
You don't have X11 installed as part of your OS X installation.
This is not required for all formulae, but is expected by some.
You can download the latest version of XQuartz from:
  https://xquartz.macosforge.org

edit2:

did run xcode-select XCode

edit3:

sudo xcode-select -switch /usr/bin
sudo ln -sf /usr/bin/llvm-gcc-4.2 /usr/bin/gcc-4.2

This fixed it! Basically you tell OS X to compile using /usr/bin folder and then you link the llvm-gcc-4.2 compiler to where the old one used to be. Works! BAM!

source: http://jtimberman.housepub.org/blog/2012/02/26/xcode-command-line-tools/

解决方案

I'm under the impression that all you need to do is:

sudo ln -sf /usr/bin/llvm-gcc-4.2 /usr/bin/gcc-4.2

I tried with xcode-select XCode and the commandline tools. They both work. I also uninstalled the brew apple-gcc42 and it still works. export CC isn't needed either.

So basically just the link. Hope this solves some issues people are having.

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