我正在尝试做bundle在 Mavericks 的大型项目中，尽管这是 rbenv 的全新安装，但一些 gem 已损坏或我的环境出现问题。
$ gem install debugger -v '1.5.0'
Building native extensions. This could take a while...
ERROR: Error installing debugger:
ERROR: Failed to build gem native extension.
/Users/samat/.rbenv/versions/1.9.3-p448/bin/ruby extconf.rb
checking for rb_method_entry_t.called_id in method.h... no
checking for rb_control_frame_t.method_id in method.h... no
checking for rb_method_entry_t.called_id in method.h... no
checking for rb_control_frame_t.method_id in method.h... no
Makefile creation failed
**************************************************************************
No source for ruby-1.9.3-p448 provided with debugger-ruby_core_source gem.
**************************************************************************
*** 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.
...
不知道我需要什么配置选项
在 mkmf 我看到类似的东西
"gcc -I/Users/samat/.rbenv/versions/1.9.3-p448/include/ruby-1.9.1/x86_64-darwin13.0.0 -I/Users/samat/.rbenv/versions/1.9.3-p448/include/ruby-1.9.1/ruby/backward -I/Users/samat/.rbenv/versions/1.9.3-p448/include/ruby-1.9.1 -I. -I/Users/samat/.rbenv/versions/1.9.3-p448/include/ruby-1.9.1/ruby-1.9.3-p448 -I'/Users/samat/.rbenv/versions/1.9.3-p448/include' -D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -I'/Users/samat/.rbenv/versions/1.9.3-p448/include' -O3 -Wno-error=shorten-64-to-32 -pipe -c conftest.c"
conftest.c:3:10: fatal error: 'method.h' file not found
#include <method.h>
^
1 error generated.
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <method.h>
...
我用rbenv，
$ rbenv version
1.9.3-p448 (set by /Users/samat/Documents/bm-git/.ruby-version)
来自调试器页面它说如果找不到 ruby 源，它将尝试安装 debugger-ruby_core_source，这实际上对我来说失败了。我使用rbenv，所以我根据调试器gem的说明，我将其指向rbenv源。
gem install debugger -- --with-ruby-include=~/.rbenv/versions/1.9.3-p484/include
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