As of GLib commit c9874f817be51d3b652457daef3b10766b59db9a,
relesed in GLib 2.73, the g_dbus_connection_call_with_unix_fd_list_sync()
function is not defined always, only when G_OS_UNIX condition is
set. This is also the reason why our virGDBusCallMethodWithFD()
function is guarded with that macro. But virgdbusmock is compiled
always, even on !UNIX systems, e.g. mingw. Therefore, we need to
use the same macro to condition compile its mock.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>