+AC_ARG_WITH(systemd,
+ AS_HELP_STRING([--with-systemd@<:@=DIR@:>@], [install systemd service files @<:@to DIR if specified@:>@]),
+ [ systemd=true; systemd_path="$with_systemd" ],
+ [ systemd=false ]
+)
+
+AS_IF([test "x$with_systemd" = "xyes"], [systemd_path="/lib/systemd/system"],
+ [AS_IF([test "x$with_systemd" = "xno"], [systemd=false])])
+
+AC_SUBST(systemd_path, $systemd_path)
+