$apt-get install autoconf automake avahi-daemon build-essential git libasound2-dev libavahi-client-dev libconfig-dev libdaemon-dev libpopt-dev libssl-dev libtool xmltoman
https://github.com/mikebrady/shairport-sync
$git clone https://github.com/mikebrady/shairport-sync.git
$cd shairport-sync
$autoreconf -i -f
$./configure --with-alsa --with-avahi --with-ssl=openssl --with-systemd --with-metadata
$make
$make install
$systemctl enable shairport-sync
$amixer set PCM -- 100%