x11-toolkits/wlroots: enable LIBSEAT by default
When seatd is running don't use setuid bit. Otherwise, use wlroots
direct session like before to keep POLA. For example,
$ sway [ERROR] [libseat] [libseat/libseat.c:73] libseat_open_seat: No backend was able to open a seat [ERROR] [backend/session/libseat.c:102] Unable to create seat: Function not implemented <direct session started> $ ps -lp $(pgrep -x sway) UID PID PPID C PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND 1234 63621 63611 0 20 0 279152 107156 select S v0 0:01.11 sway 0 63623 63621 6 52 0 32124 18396 sbwait I v0 0:00.00 sway
vs.
$ service seatd onestart $ sway <libseat session started> $ ps -lp $(pgrep -x sway) UID PID PPID C PRI NI VSZ RSS MWCHAN STAT TT TIME COMMAND 1234 46290 46280 4 20 0 332924 105248 select S v0 0:05.47 sway