I'm running Homebrew'd zsh 5.2 on OS X (Yosemite) and I've broken the permissions such that I'm now always getting:

compdef: unknown command or service: git
compdef: unknown command or service: git

...before the prompt shows and tab completion has stopped working. This is basically the same as #4698, but my circumstances are different so I've not yet been able to resolve the problem.

I broke the permissions by running sudo chmod -R a+rw /usr/local as my local admin user (not root -- I don't have root -- but a member of the admin group). Zsh is installed via Homebrew, through this local admin user; but OMZ is just installed in my regular user's $HOME/.oh-my-zsh.

I've tried changing the permissions and ownership of the files/directories that compaudit complains about, but to no avail. (See also my post on Super User.) I also tried completely uninstalling -- removing them entirely from my system -- and reinstalling OMZ and zsh in the hope that it would reset things. Nope 😕

This problem only occurs when OMZ is installed. Vanilla zsh worked fine.

FWIW, the output of ls -ld $(compaudit) is as one would expect: 0644 for files (0755 for directories) for ch12_admin:admin and some in wheel (my regular user is ch12:1312). In detail: