Right now, old dependencies are fetched as binaries from the Ubuntu archives, because Ubuntu 13.04 Raring Ringtail was the last version of Ubuntu where Canonical shipped Adobe Reader 9.5.5 as part of its Canonical Partner repository.
However, these binaries might go away at some point or otherwise start causing problems, so it would be good to build these dependencies from source instead. So far I have not been able to build binaries that don't cause an immediate and undebugable segfault in Adobe Reader.
Right now, old dependencies are fetched as binaries from the Ubuntu archives, because Ubuntu 13.04 Raring Ringtail was the last version of Ubuntu where Canonical shipped Adobe Reader 9.5.5 as part of its Canonical Partner repository.
https://github.com/flathub/com.adobe.Reader/blob/153cefba30a056012b42f62692ad289e383e7c0a/com.adobe.Reader.yaml#L42-L65
However, these binaries might go away at some point or otherwise start causing problems, so it would be good to build these dependencies from source instead. So far I have not been able to build binaries that don't cause an immediate and undebugable segfault in Adobe Reader.