Since debian wheezy, apache2-dev package required by ampache-debian to create packages is on testing repo.
The real dependency seems to be dh-apache2 which is currently only provided through apache2-dev.
How to replace this dependency with one in stable stage? It messup all dependencies for generated package (see https://github.com/ampache/ampache-debian/releases/tag/3.7.1-develop1 release) with higher and testing versions...