Rather than a lot of #ifdef mess in the public headers, Alex would
prefer that the P2P API is made unconditionally public. This assumes
that they are unlikely to change in future. If they do, we just make
them return NULL or break API and drop them.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
This adds a new collection-id property which is only enabled if
FLATPAK_ENABLE_P2P is defined. The internal machinery for handling it is
always enabled, to reduce the amount of #ifdef spam.
Signed-off-by: Philip Withnall <withnall@endlessm.com>
