运行brew医生或brew时自制软件会冻结--config

Question

几天前，当我尝试运行brew doctor或brew --config时，自制软件开始卡住了。输出是：

$ brew --config 
HOMEBREW_VERSION: 0.9.5 
ORIGIN: https://github.com/Homebrew/homebrew.git 
HEAD: 391ed374442cb8f91d9168ccd23f1c97b84686d1 
Last commit: 6 minutes ago 
HOMEBREW_PREFIX: /usr/local 
HOMEBREW_CELLAR: /usr/local/Cellar 
CPU: quad-core 64-bit sandybridge 
OS X: 10.10.1-x86_64 

和

$ brew doctor 
Please note that these warnings are just used to help the Homebrew maintainers 
with debugging if you file an issue. If everything you use Homebrew for is 
working fine: please don't worry and just ignore them. Thanks! 

Warning: Setting DYLD_* vars can break dynamic linking. 
Set variables: 
    DYLD_LIBRARY_PATH: /usr/local/kde4/lib:/Users/<username>/Desktop/anderes/benvium-libimobiledevice-macosx-8507dd2 

退出正在发送一个SIGINT给进程的唯一途径。无论如何，brew update工作：

$ brew update 
Updated Homebrew from cd9895d9 to 391ed374. 
==> Updated Formulae 
curl   fwknop john-jumbo sshrc 
$ brew update 
Already up-to-date. 

我试过reinstalling homebrew，但似乎并没有工作：

$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" 
It appears Homebrew is already installed. If your intent is to reinstall you 
should do the following before running this installer again: 
    rm -rf /usr/local/Cellar /usr/local/.git && brew cleanup 
$ rm -rf /usr/local/Cellar /usr/local/.git && brew cleanup 
$ ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" 
/Users/<username>/.rbenv/shims/ruby: line 21: /usr/local/Cellar/rbenv/0.4.0/libexec/rbenv: No such file or directory 

出人意料的是，BREW命令本身并甚至高于rm命令后。我想知道我做错了什么。谢谢你的帮助！

Answer 1

我现在得到了一个解决方案：xcode-select指向错误的目录。 sudo xcode-select -switch /Applications/Xcode.app解决了这个问题。