Add --with-klogd-delay=SEC configure option

This enables the same functionality as the old build system, only
slightly more flexible since you don't need to edit the Makefile.

Signed-off-by: Joachim Nilsson <troglobit@gmail.com>

configure.ac

@@ -28,4 +28,14 @@ AC_PROG_CC
 AC_PROG_INSTALL
 AC_HEADER_STDC
 
+AC_ARG_WITH(klogd-delay,
+        AS_HELP_STRING([--with-klogd-delay=SEC], [when started at the same time as syslogd, default: 0]),
+	[klogd_delay=$withval], [klogd_delay='no'])
+
+AS_IF([test "x$klogd_delay" != "xno"],[
+	AS_IF([test "x$klogd_delay" = "xyes"],[
+		AC_MSG_ERROR([Must supply argument])])
+	]
+	AC_DEFINE_UNQUOTED(KLOGD_DELAY, $klogd_delay, [Delay klogd startup N seconds, default: 0]))
+
 AC_OUTPUT