MacOS Homebrew – Symlink Error When Installing MySQL

Have you tried this.

Download the 64-bit DMG version of MySQL 5.1.x (or 5.5.x) for Mac OS X 10.6 from the official MySQL site and install the package, the startup item and the preference pane.

Add /usr/local/mysql/bin to the path:

vim ~/.bash_profile

And add:

export PATH=~/bin:/usr/local/bin:/usr/local/mysql/bin:$PATH
export EDITOR=vim

At the top of file. (Note that we set EDITOR whilst we are here so that svn is happy!)

Set up MySQL root password:

mysqladmin -u root password {new-password}
mysqladmin -u root -p{new-password} -h localhost password {new-password}
mysqladmin -u root -p{new-password} reload

Clear the history file by typing history -c so that {new-password} isn't in plain text on the disk.

Now ensure that the mysql.sock file can be found by PHP: Ensure that MySQL is running

sudo mkdir /var/mysql
sudo ln -s /tmp/mysql.sock /var/mysql/mysql.sock

You do not need sudo for Homebrew

Run:

brew install opencv

Homebrew never needs elevated privileges for anything – except for when there are some conflicts with other installed libraries:

Homebrew is designed to work without using sudo. You can decide to use it but we strongly recommend not to do so. If you have used sudo and run into a bug then it is likely to be the cause.

If you can't install it without sudo, make sure you own /usr/local and have the correct permissions – also by running this script. Running brew doctor will also generally give you some good hints.