我正在尝试在带有 ruby 版本 1.8.7 的 Mac OS X 版本 10.7.3 上安装 mechanize。问题在于它的依赖项之一 nokogiri。我看过其他关于安装 xcode 的帖子,我这样做是 4.3.2 版本。这是我收到的错误。先感谢您。
sudo gem install mechanize
Building native extensions. This could take a while...
ERROR: Error installing mechanize:
ERROR: Failed to build gem native extension.
/System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/bin/ruby extconf.rb
mkmf.rb can't find header files for ruby at /System/Library/Frameworks/Ruby.framework/Versions/1.8/usr/lib/ruby/ruby.h
Gem files will remain installed in /Library/Ruby/Gems/1.8/gems/nokogiri-1.5.2 for inspection.
Results logged to /Library/Ruby/Gems/1.8/gems/nokogiri-1.5.2/ext/nokogiri/gem_make.out