portaudio19-dev can't be installed without conflicts

[Daniel Schürmann]

Description: Ubuntu 14.04.2 LTS
Release: 14.04
Package: portaudio19-dev 19+svn20140130-1

We have some issues with portaudio and jack 1/2,
setting up a development environment.
A solution involves uninstalling the default libjack-jackd2-0

What you expected to happen:
Installing: portaudio19-dev should work without any issues on a stock install.

What happened instead:
The following packages have unmet dependencies:
 libjack-dev : Depends: libjack0 (= 1:0.121.3+20120418git75e3e20b-2.1ubuntu1) but it is not going to be installed

This was original reported for Mixxx (Bug #1326653)
The final build result (Mixxx) runs fine with libjack-jackd2-0
in place.

Reinstalling libjack-jackd2-dev after portaudio19-dev works.

libjack-dev is listed in the portaudio19-dev dependency.
I do not know how libjack-jackd2-dev can satisfy this dependency,
but this state should be somehow swapped.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Daniel Schürmann (daschuer)]

Any updates?
What can be done towards a solution?

[jong (agitato816)]

same issue on ubuntu 16.04-2

if I install qjackctl:

The following packages will be REMOVED:
  libjack-dev libjack0 portaudio19-dev

PLEASE FIX