After talking with Jörg about the expected dependency chain for XPC services, remove them as direct dependencies from iMedia.framework. They should be added as dependencies by host apps that choose to install them in their own app bundle. Consequently the iMedia library stub is not needed either, so I'm removing that and backing up to having the XPC libraries link directly against the iMedia framework. In my tests, the iMediaTester app needed to have the XPC services it installs added as direct dependendencies. iMedia's implicit dependencies didn't seem to do the trick of getting them built, presumably because they are not linked against by the host app but merely copied in\?