OS X Mountain Lion：gcc-4.2没有这样的文件或目录 [英] OS X Mountain Lion: gcc-4.2 No such file or directory

问题描述

试图在Mountain Lion上安装gem，并且找不到gcc-4.2：

  kamil $ gem install posix -spawn -v'0.3.6'
构建原生扩展。这可能需要一段时间... 
错误：安装posix-spawn错误：
错误：无法构建gem本机扩展。 
 
 /Users/kamil/.rbenv/versions/1.9.3-p0/bin/ruby extconf.rb 
创建Makefile 
 
 make 
编译posix-spawn.c 
 make：gcc-4.2：没有这样的文件或目录
 make：*** [posix-spawn.o]错误1 
  

解决方案

如果您安装了Xcode，gcc应该可用。检查它在哪里：

  kamil $哪个gcc 
 / usr / bin / gcc 
 
 code> 

然后建立一个从gcc-4.2到纯gcc的user-land符号链接：



  kamil $ sudo ln -s〜/ bin / gcc /usr/bin/gcc-4.2 
  

（确保在您的路径中通过 export PATH = ...：$ HOME / bin 在您的路径中 .bash_profile 或 .zshrc 。）



安装了Gem罚款后。

Tried to install a gem on Mountain Lion and make couldn't find gcc-4.2:

kamil$ gem install posix-spawn -v '0.3.6'
Building native extensions.  This could take a while...
ERROR:  Error installing posix-spawn:
    ERROR: Failed to build gem native extension.

        /Users/kamil/.rbenv/versions/1.9.3-p0/bin/ruby extconf.rb
creating Makefile

make
compiling posix-spawn.c
make: gcc-4.2: No such file or directory
make: *** [posix-spawn.o] Error 1

解决方案

If you have Xcode installed, gcc should be available. Check where it is with:

kamil$ which gcc
/usr/bin/gcc

Then make a user-land symbolic link from gcc-4.2 to plain gcc:

kamil$ sudo ln -s ~/bin/gcc /usr/bin/gcc-4.2

(Ensure the user-land bind folder is in your path via export PATH=...:$HOME/bin in your .bash_profile or .zshrc.)

Gem installed fine afterwards.

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