/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install.sh)"
brew update
-brew install par2 readline rsync pkg-config
+brew install par2 readline rsync pkg-config md5sha1sum
# This avoid's macos interference, i.e. without this it looks like we
# won't actually be able to use the readline we just installed above.