Comment 1 for bug 1595243

Similar situation, but I don't have the technical know-how to understand exactly what number of things are not working correctly in the build-environment.

My snapcraft.yaml:
https://raw.githubusercontent.com/wandrewkeech/snappy-playpen/gimp-git/gimp-git/snapcraft.yaml

This is the snapcraft cleanbuild output (mostly `libtool` and `pkg-config` errors which are relevant):
http://paste.ubuntu.com/17979688/

These are the two .pc files of the libraries which are built, and not being found, along with a list of all .pc files on the build container:
http://paste.ubuntu.com/17980514/