/usr/lib/pkgconfig/gupnp-dlna-gst-2.0.pc is in libgupnp-dlna-2.0-dev 0.10.2-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | prefix=/usr
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include
Name: gupnp-dlna-gst-2.0
Description: GStreamer specific utils using GUPnP-DLNA
Version: 0.10.2
Libs: -L${libdir} -lgupnp-dlna-gst-2.0
Requires: glib-2.0 gobject-2.0 gupnp-dlna-2.0 gstreamer-1.0 gstreamer-pbutils-1.0
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