If build DBus without X11, it will fail like below.
dbus-launch.c:112:1: error: ‘read_machine_uuid_if_needed’ defined but not used [-Werror=unused-function]
cc1: all warnings being treated as errors
make: *** [dbus-launch.o] Error 1
make: Leaving directory `/home/chengwei/Upstream/dbus.git/tools'
make: *** [all-recursive] Error 1
make: Leaving directory `/home/chengwei/Upstream/dbus.git'
make: *** [all] Error 2
Created attachment 80772 [details] [review]
[PATCH] Fix Werror=unused-function if build without X11
Applied for 1.7.6, thanks