VoIP: Linphone in Repos extrem veraltet ⇒ nur PPA möglich?

[slu]

Inzwischen ist in Buster ein neueres Linphone, Backport nach Stretch ist mir aber nicht gelunden.
linphone

[KBDCALLS]

Hab mal pbuilder drauf losgelassen.

• Code: Alles auswählen

  The following packages have unmet dependencies:
   pbuilder-satisfydepends-dummy : Depends: libbctoolbox-dev which is a virtual package and is not provided by any available package
  
                                   Depends: libbelcard-dev which is a virtual package and is not provided by any available package
  
                                   Depends: libbellesip-dev (>= 1.4.2) but it is not going to be installed
                                   Depends: libbelr-dev which is a virtual package and is not provided by any available package
  
                                   Depends: libmediastreamer-dev (>= 1:2.11.0) but it is not going to be installed
                                   Depends: libortp-dev (>= 1:0.24.0) but it is not going to be installed
   debhelper : Breaks: cmake (< 3.9~) but 3.7.2-1 is to be installed
  Unable to resolve dependencies!  Giving up...

Müsste aber machbar sein.