(In reply to Takashi Iwai from comment #14) > Well, wouldn't it result again in the broken export, when ffmpeg-4 is > installed? > > If so, we may have > Conflicts: ffmpeg >= 4 > instead? Read Bug 1195650 this was the reason for explicitly requiring ffmpeg-3 without realising that ffmpeg-3 didn't exist in Leap:15.3. Audacity searches for the libavformat that it was built against and because although I tried to update audacity for 15.3 the lv2 library and it's dependents I submitted sat for more than three months and then were suddenly declined with no explanation. I'm attempting to update for 15.4 but it's very confusing as to which library comes from which project.