OS X Mountain Lion:gcc-4.2没有这样的文件或目录

Question

试图在Mountain Lion上安装一个宝石,但找不到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

Answer 1

如果你安装了Xcode,gcc应该可用.检查它的位置:

kamil$ which gcc
/usr/bin/gcc

然后创建一个从gcc-4.2到普通gcc的用户土地符号链接:

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

(确保用户 - 土地绑定文件夹export PATH=...:$HOME/bin位于您.bash_profile或您的路径中.zshrc.)

之后宝石安装得很好.

Answer 2

使用brew安装简单的apple-gcc42.它生成gcc-4.2.

brew install apple-gcc42

所以我们不需要符号链接,苹果更新可能会删除它们.

家酿