Bug#865725: libglib-object-introspection-perl: Upstream test suite not run during autopkgtests due to test libraries missing

[intrigeri]

gregor herrmann:
> I just pushed a commit which builds the test libraries during
> autopkgtest. Please take a look, and feel free to improve/revert/...

Thanks a lot, this works fine for me ⇒ will upload :)