Hi, I have
$ dpkg -l|grep libgupnp ii libgupnp-1.0-3 0.13.2-1 GObject-based library for UPnP ii libgupnp-1.0-dev 0.13.2-1 GObject-based library for UPnP (development ii libgupnp-igd-1.0-3 0.1.6-1 library to handle UPnP IGD port mapping ii libgupnp-igd-1.0-dev 0.1.6-1 library to handle UPnP IGD port mapping - de and the package builds just fine under cowbuilder (log attached) on amd64.
cowbuilder.log.gz
Description: Binary data