Reliably installing Ansible on OS X Mavericks

OS X - installing Ansible via `pip install`

// brew install ansible didn't work properly, 
// even tried brew install python but no joy
// so use pip on standard python install

    sudo pip install ansible

// if you get errors try this
// from https://github.com/ansible/ansible/issues/7146

When you get to the step 'sudo pip install ansible', do this instead:

    sudo su -
    export CFLAGS=-Qunused-arguments
    export CPPFLAGS=-Qunused-arguments 
    pip install ansible
    exit

That last line is to just make sure you log out of the root account before you break anything accidentally.

This doesn't appear to be ansible-specific, and instead appears to be caused by the version of clang that Mavericks is using and the default settings in it. So if you encounter a similar problem with a 'pip install' command in the future, this should resolve it.

// for --ask-pass support 
// from http://thornelabs.net/2014/02/09/ansible-os-x-mavericks-you-must-install-the-sshpass-program.html

    cd ~/Downloads
    curl -O -L http://downloads.sourceforge.net/project/sshpass/sshpass/1.05/sshpass-1.05.tar.gz
    tar xvzf sshpass-1.05.tar.gz
    cd sshpass-1.05