Add pipewire as a recommended dependency of libpipewire

libpipewire dlopens modules from pipewire (such as libspa-support.so), and relies on being able to connect to the pipewire daemon to function.

Signed-off-by: Philip Withnall withnall@endlessm.com

mentioned in merge request debian/xdg-desktop-portal!3 (closed)

Context: I spotted this on Endless OS in the user journal, where xdg-desktop-portal is failing to initialise its pipewire support because pipewire is not installed. It looks like no packages in our distribution (which is roughly derived from Bullseye at the moment) actually pull pipewire in.

Mar 09 14:10:56 endless xdg-desktop-portal[5481]: can't load /usr/lib/x86_64-linux-gnu/spa/support/libspa-support.so: /usr/lib/x86_64-linux-gnu/spa/support/libspa-support.so: cannot open shared object file: No such file or directory
Mar 09 14:10:56 endless xdg-desktop-por[5481]: Failed connect to PipeWire: Couldn't create PipeWire main loop

merged