Ruby on rails 无法在OS X 10.10 Yosemite上安装RMagic和Nokogiri

必须安装约塞米蒂以解决Wi-Fi问题，但现在安装rmagick失败。我尝试了StackOverflow和Github上的每一篇文章，但安装仍然失败

我使用的是通过rbenv安装的ruby 2.1.1p76 2014-02-24修订版45161[x86_64-darwin13.0]

但失败了：

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

    /Users/pain/.rbenv/versions/2.1.1/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc-4.2... yes
checking for Magick-config... yes
checking for ImageMagick version >= 6.4.9... yes
checking for HDRI disabled version of ImageMagick... yes
checking for stdint.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
    --with-opt-dir
    --without-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/Users/pain/.rbenv/versions/2.1.1/bin/ruby
/Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:587:in `try_cpp'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:1067:in `block in have_header'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:347:in `postpone'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:1066:in `have_header'
    from extconf.rb:194:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in /Users/pain/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rmagick-2.13.2 for inspection.
Results logged to /Users/pain/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/extensions/x86_64-darwin-13/2.1.0-static/rmagick-2.13.2/gem_make.out

任何建议都会很有帮助。谢谢

---

在运行gem cleanup之后，我意识到无论我做什么，我都不能安装nokogiri…

我只是在OSX 10.10上遇到了同样的问题，并且完成了您所经历的大部分步骤。如果使用CC=clang前缀安装ruby，请导航到/usr/bin并运行：

---

如果您仍然遇到问题，我可能会在删除GCC4.2并重建Ruby之后尝试sudo ln-s clanggcc-4.2。这修复了rmagick和nokogiri的所有问题。

谢谢，但使用clang并没有改变任何事情。作为记录，我是通过rbenv安装ruby的，不确定它使用的是什么编译器。我使用rvm，但安装失败。因此，我不得不用CC=clang rvm install 1.9.3-p484运行ruby安装。我在ruby 2.1.1p76 2014-02-24修订版45161[x86_64-darwin13.0]上。baoist的评论对我有用，但我必须重新安装，而不是安装。你如何重建ruby？

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

    /Users/pain/.rbenv/versions/2.1.1/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc-4.2... yes
checking for Magick-config... yes
checking for ImageMagick version >= 6.4.9... yes
checking for HDRI disabled version of ImageMagick... yes
checking for stdint.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of necessary
libraries and/or headers.  Check the mkmf.log file for more details.  You may
need configuration options.

Provided configuration options:
    --with-opt-dir
    --without-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/Users/pain/.rbenv/versions/2.1.1/bin/ruby
/Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:456:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:587:in `try_cpp'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:1067:in `block in have_header'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:918:in `block in checking_for'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:351:in `block (2 levels) in postpone'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:351:in `block in postpone'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:321:in `open'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:347:in `postpone'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:917:in `checking_for'
    from /Users/pain/.rbenv/versions/2.1.1/lib/ruby/2.1.0/mkmf.rb:1066:in `have_header'
    from extconf.rb:194:in `<main>'

extconf failed, exit code 1

Gem files will remain installed in /Users/pain/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/rmagick-2.13.2 for inspection.
Results logged to /Users/pain/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/extensions/x86_64-darwin-13/2.1.0-static/rmagick-2.13.2/gem_make.out

sudo unlink gcc-4.2
sudo mv gcc gcc-foo
sudo ln -s clang gcc