zsh compinit: insecure directories
Note: This answer is from 2012.
This fixed it for me:
$ sudo chmod -R 755 /usr/local/share/zsh/site-functions
Credit: a post on zsh mailing list
EDIT: As pointed out by @biocyberman in the comments. You may need to update the owner of site-functions
as well:
$ sudo chown -R root:root /usr/local/share/zsh/site-functions
On my machine (OSX 10.9), I do not need to do this but YMMV.
EDIT2: On OSX 10.11, only this worked:
$ sudo chmod -R 755 /usr/local/share/zsh
$ sudo chown -R root:staff /usr/local/share/zsh
Also user:staff is the correct default permission on OSX.
Removing group-write permissions with
compaudit | xargs chmod g-w
will do the trick.
See http://www.wezm.net/technical/2008/09/zsh-cygwin-and-insecure-directories/