build: Do not redefine polkit autocleanup
PolkitAgent recently added autocleanup functions itself, so check for their existence at configure time and only define our own when they don't exist upstream.
Fixes #5490 (closed)
PolkitAgent recently added autocleanup functions itself, so check for their existence at configure time and only define our own when they don't exist upstream.
Fixes #5490 (closed)