Hi, thank you for your help. I'd checked different methods for the symbol files and I think I found a good one. I'm using the options "(arch-bits=32) (arch-bits=64)" to separate them. Thank you for your hint!
This should work for all builds, which were failed to build. But I have two questions for now. Which version scheme shell I use? libechonest/2.3.1-0.2 or libechonest/2.3.1-1? Furthermore it seems someone dislike the using of transitional package (see #807507). What should I do? Deleting the transitional package or not? Stefan