MacOS在沒有安裝xcode狀況下使用homebrew

當沒有xcode時，咱們使用homebrew會提示出錯。

Error: Failure while executing: /usr/bin/otool -L /usr/bin/install_name_tool

或者出現

Error: The /usr/local directory is not writable.

Even if this directory was writable when you installed Homebrew, other

software may change permissions on this directory. Some versions of the

"InstantOn" component of Airfoil are known to do this.

You should probably change the ownership and permissions of /usr/local

back to your user account.

  sudo chown -R $(whoami):admin /usr/local

 

在某些狀況下，咱們須要使用mac的命令行工具（如homebrew），但不想安裝xcode開發環境。這時，咱們須要

更新xcode的開發連接路徑，使之指向實際的命令行工具路徑。

sudo xcode-select --switch /Library/Developer/CommandLineTools

這樣，homebrew就能找到環境了。