在 osx yosemite 上安装 ruby​​-debug gem 时出错

Question

有人在 osx yosmite 中成功安装了 ruby​​-debug 吗？我的 Mac 上有 ruby​​ 2.2.1 和 rvm 1.26.11。但是，当我尝试安装 ruby​​-debug 时，它失败并出现以下错误：

~ --> gem install ruby-debug
Building native extensions.  This could take a while...
ERROR:  Error installing ruby-debug:
    ERROR: Failed to build gem native extension.

    /Users/userid/.rvm/rubies/ruby-2.2.1/bin/ruby -r ./siteconf20150812-26861-vlyh28.rb extconf.rb
Can't handle 1.9.x yet
*** 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/userid/.rvm/rubies/ruby-2.2.1/bin/$(RUBY_BASE_NAME)

extconf failed, exit code 1

Gem files will remain installed in /Users/userid/.rvm/gems/ruby-2.2.1/gems/linecache-0.46 for inspection.
Results logged to /Users/userid/.rvm/gems/ruby-2.2.1/extensions/x86_64-darwin-14/2.2.0-static/linecache-0.46/gem_make.out
~ -->

~ --> 输入 rvm | head -1 rvm 是一个函数 ~ --> rvm -v rvm 1.26.11 （最新）作者：Wayne E. Seguin，Michal Papis [https://rvm.io/] ~ --> ruby​​ -v ruby​​ 2.2.1p85 (2015-02-26 修订 49769) [x86_64-darwin14]

Answer 1

对于那个版本的 Ruby，你应该使用 byebug 而不是 ruby​​-debug。