sysvinit_path and sysvrcnd_path have to be set both to activate Sysv compatibility.
#if 0 /// UNNEEDED by elogind
# sysvinit_path = get_option('sysvinit-path')
# sysvrcnd_path = get_option('sysvrcnd-path')
-# have = sysvinit_path != '' or sysvrcnd_path != ''
+# have = sysvinit_path != '' and sysvrcnd_path != ''
# conf.set10('HAVE_SYSV_COMPAT', have,
# description : 'SysV init scripts and rcN.d links are supported')
# m4_defines += have ? ['-DHAVE_SYSV_COMPAT'] : []