捆绑安装在 kgio 安装上使用 unicorn gem 失败

Question

我尝试将独角兽 gem 添加到我的 gem 文件中，但当我运行 bundle install 时，我收到以下错误：

Installing kgio (2.8.1) with native extensions 
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.

        /usr/local/rvm/rubies/ruby-1.9.3-p392/bin/ruby extconf.rb 
checking for CLOCK_MONOTONIC in time.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=/usr/local/rvm/rubies/ruby-1.9.3-p392/bin/ruby
/usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:491:in `block in try_compile'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:443:in `with_werror'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:491:in `try_compile'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:686:in `macro_defined?'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:822:in `block in have_macro'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:254:in `open'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:254:in `open'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
        from /usr/local/rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/mkmf.rb:821:in `have_macro'
        from extconf.rb:5:in `<main>'


Gem files will remain installed in /usr/local/rvm/gems/ruby-1.9.3-p392/gems/kgio-2.8.1 for inspection.
Results logged to /usr/local/rvm/gems/ruby-1.9.3-p392/gems/kgio-2.8.1/ext/kgio/gem_make.out
An error occurred while installing kgio (2.8.1), and Bundler cannot continue.
Make sure that `gem install kgio -v '2.8.1'` succeeds before bundling.

在包含 unicorn gem 之前，我运行捆绑安装没有问题。尝试安装 kgio 2.8.1 时似乎失败了。我在 Stackoverflow 和其他地方搜索过解决方案，最常见的解决方案似乎是安装 Xcode 开发工具。我已经这样做了，但它并没有解决问题。

我正在运行带有 Ruby 1.9.3p392 的 Mac OSX 10.9.1 Mavericks。真的需要解决这个问题，非常感谢任何帮助。

Answer 1

我更新到 Ruby 2.1 并解决了问题。