+if test "x${SYSTEM_SYSVINIT_PATH}" != "x" -a "x${SYSTEM_SYSVRCND_PATH}" != "x"; then
+ AC_DEFINE(HAVE_SYSV_COMPAT, [], [SysV init scripts and rcN.d links are supported.])
+ SYSTEM_SYSV_COMPAT="yes"
+elif test "x${SYSTEM_SYSVINIT_PATH}" != "x" -o "x${SYSTEM_SYSVRCND_PATH}" != "x"; then
+ AC_MSG_ERROR([*** You need both --with-sysvinit-path=PATH and --with-sysvrcd-path=PATH to enable SysV compatibility support, or both empty to disable it.])
+else
+ SYSTEM_SYSV_COMPAT="no"
+fi
+
+AC_ARG_WITH([tty-gid],
+ [AS_HELP_STRING([--with-tty-gid=GID],
+ [Specify the numeric GID of the 'tty' group])],
+ [AC_DEFINE_UNQUOTED(TTY_GID, [$withval], [GID of the 'tty' group])],
+ [])
+