Bug#725887: Dropping NAS support

[Moritz Muehlenhoff <jmm@debian.org>]

Package: qt4-x11
Severity: normal

I suggest to remove NAS support from libqtgui4 or move it to a separate
module which can be installed selectively. NAS is a vintage sound
server and unlikely to be present on modern desktop system (since it
would also fight with pulseaudio over sound device control).

Passing -no-nas-sound to configure and dropping the build-dep on
libaudio-dev resolves this.

QT seems to be the main "culprit" for the relatively large installed base
of libaudio2 compared to the NAS sound server itself:
http://qa.debian.org/popcon.php?package=nas

Cheers,
        Moritz

-- System Information:
Debian Release: jessie/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 3.10-3-amd64 (SMP w/2 CPU cores)
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash