man: fix suggested autoconf snippet

diff --git a/man/daemon.xml b/man/daemon.xml
index dac244ca4e8abbfd4459d36fbd2b72cefd2927be..46988ef5ec14607ed286bc3a7e517492bd8808a0 100644 (file)
--- a/man/daemon.xml
+++ b/man/daemon.xml
@@ -785,8 +785,10 @@
 AC_ARG_WITH([systemdsystemunitdir],
         AS_HELP_STRING([--with-systemdsystemunitdir=DIR], [Directory for systemd service files]),
         [], [with_systemdsystemunitdir=$($PKG_CONFIG --variable=systemdsystemunitdir systemd)])
-AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])
-AM_CONDITIONAL(HAVE_SYSTEMD, [test -n "$with_systemdsystemunitdir"])</programlisting>
+if test "x$with_systemdsystemunitdir" != xno; then
+        AC_SUBST([systemdsystemunitdir], [$with_systemdsystemunitdir])
+fi
+AM_CONDITIONAL(HAVE_SYSTEMD, [test -n "$with_systemdsystemunitdir" -a "x$with_systemdsystemunitdir" != xno ])</programlisting>
 
                         <para>This snippet allows automatic
                         installation of the unit files on systemd