MacBook-Pro-di-Daniele:~ cusy$ brew install --HEAD --with-bundle --with-bluray-support --with-libdvdread --with-libquvi --with-little-cms2 --with-lua mpv && brew linkapps
==> Cloning https://github.com/mpv-player/mpv.git
Updating /Library/Caches/Homebrew/mpv--git
==> Checking out branch master
==> Downloading https://pypi.python.org/packages/source/d/docutils/docutils-0.11.tar.gz
Already downloaded: /Library/Caches/Homebrew/mpv--docutils-0.11.tar.gz
==> python setup.py install --prefix=/usr/local/Cellar/mpv/HEAD/libexec
==> Downloading http://ftp.waf.io/pub/release/waf-1.7.16
Already downloaded: /Library/Caches/Homebrew/mpv--waf-1.7.16
==> python waf configure --prefix=/usr/local/Cellar/mpv/HEAD --enable-zsh-comp

Setting top to                           : /private/tmp/mpv-5xuhjA
Setting out to                           : /private/tmp/mpv-5xuhjA/build
Checking for waf version in 1.8.1-1.8.0  : waf version should be at least 17301760 (17240064 found)
(complete log in /private/tmp/mpv-5xuhjA/build/config.log)

READ THIS: https://github.com/Homebrew/homebrew/wiki/troubleshooting
If reporting this issue please do so at (not Homebrew/homebrew):
  https://github.com/mpv-player/homebrew-mpv/issues