我刚刚升级到 OS X Mountain Lion(已经后悔了)。
安装 json gem 的本机扩展时遇到问题。
在 10.8 之前,我安装了命令行工具。带有 Ruby 1.9.2 的 RVM。
升级到 10.8 并做了以下事情:
- sudo chown -R
whoami
/usr/local - 酿造更新
- brew tap homebrew/dupes
- 酿造安装苹果-gcc42
- 安装 XCode 4.4
- 为 XCode 4.4 安装的命令行工具
- 在 bash_profile 中导出 CC=/usr/local/bin/gcc-4.2
- sudo ln -s /usr/local/bin/gcc-4.2 /usr/bin/gcc-4.2
- 编辑:sudo xcode-select -switch /Applications/Xcode.app/Contents/Developer
安装 json gem 时,我仍然得到以下输出:
➽ 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
这里有什么帮助吗?如何调试我的构建环境?在这方面不是专家,但我认为 json gem 安装程序忽略了我的环境,因为它使用的 GCC 版本在我的系统上不存在,而且 brew 安装程序也没有创建它。
➽ 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
我也尝试了符号链接➽ sudo link /usr/local/bin/gcc-4.2 /usr/bin/i686-apple-darwin11-gcc-4.2.1
。但这给出了 vfork 超时错误。
编辑:
➽ 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
编辑2:
确实运行了 xcode-select XCode
编辑3:
sudo xcode-select -switch /usr/bin
sudo ln -sf /usr/bin/llvm-gcc-4.2 /usr/bin/gcc-4.2
这解决了它!基本上,您告诉 OS X 使用 /usr/bin 文件夹进行编译,然后将 llvm-gcc-4.2 编译器链接到旧编译器所在的位置。作品!砰!
来源:http: //jtimberman.housepub.org/blog/2012/02/26/xcode-command-line-tools/