为了练习rails开发，就用brew安装ruby，再以brew安装的ruby手动装上最新版的gem。 最後用这ruby1.9.3 + gem1.8 装起了整个rails 3.2。 本来这用手动安装的Ruby on Rails在我的Leopard上运作得好好的， 但大前天一时手贱鬼迷心窍就按下了gem update --system。 过程中出现error便中断了(Ruby真是充满了迷之Bug，我现在还没能找出问题根源)。 此之後的brew就烂了，举例来说会出现 $ brew -v /usr/local/Library/Homebrew/patches.rb:94: warning: parenthesize argument(s) for future version 0.9 这样的讯息。且brew install会失败： Error: Failed executing: make install (ruby.rb:62) 执行 brew doctor的输出如下： Warning: Your Homebrew is outdated You haven't updated for at least 24 hours, this is a long time in brewland! Warning: Unbrewed dylibs were found in /usr/local/lib. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected dylibs: /usr/local/lib/libntfs-3g.80.dylib /usr/local/lib/libntfs.9.0.0.dylib /usr/local/lib/libruby.1.8.7.dylib /usr/local/lib/libruby.1.9.1.dylib /usr/local/lib/libublio.1.dylib Warning: Unbrewed .la files were found in /usr/local/lib. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected .la files: /usr/local/lib/libntfs-3g.la /usr/local/lib/libntfs.la /usr/local/lib/libublio.la Warning: Unbrewed .pc files were found in /usr/local/lib/pkgconfig. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected .pc files: /usr/local/lib/pkgconfig/fuse-ext2.pc /usr/local/lib/pkgconfig/libntfs-3g.pc /usr/local/lib/pkgconfig/libublio.pc /usr/local/lib/pkgconfig/ruby-1.9.pc Warning: Unbrewed static libraries were found in /usr/local/lib. If you didn't put them there on purpose they could cause problems when building Homebrew formulae, and may need to be deleted. Unexpected static libraries: /usr/local/lib/libntfs-3g.a /usr/local/lib/libntfs.a /usr/local/lib/libruby-static.a /usr/local/lib/libruby.1.9.1-static.a /usr/local/lib/libublio.a Warning: /usr/bin occurs before /usr/local/bin This means that system-provided programs will be used instead of those provided by Homebrew. The following tools exist at both paths: cap capify cscope ctags gem gpgen mongrel_rails ocs pydoc python python-config pythonw rails rake rdoc redcloth ri ruby smtpd.py sqlite3 update_rubygems Consider ammending your PATH so that /usr/local/bin is ahead of /usr/bin in your PATH. -- 以前有个朋友，常看他盯着摆在书架上的骆马书(perl)和恐龙书(os) 从他的背影我看到发散出来得精神力量，露出满足的表情 他把笔电里的windows fo掉，装了全世界最难装的debian 蓄了长发，堕入阴影，过着半人半神的黑客生活 因为他太强大了，所以不好意思称他宅男　　　　　　　　　by tantu --

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