+dnl ------ GNU Readline
+AC_CHECK_LIB(readline, readline, [LIBS="$LIBS -lreadline"])
+AC_CHECK_LIB(history, add_history, [LIBS="$LIBS -lhistory"])
+if test "$ac_cv_lib_readline_readline" = "yes"; then
+ AC_CHECK_HEADERS(readline/readline.h readline/history.h)
+fi
+dnl
+dnl ------ tcpd
+AC_MSG_CHECKING(for working tcpd.h)
+oldLibs=$LIBS
+LIBS="$LIBS -lwrap"
+AC_TRY_LINK([#include <syslog.h>
+#include <tcpd.h>
+int allow_severity = LOG_INFO;
+int deny_severity = LOG_WARNING;],
+[struct request_info request_info; int i;
+i = hosts_access(&request_info);],tcpd_ok=1, tcpd_ok=0)
+if test "$tcpd_ok" = "0"; then
+ AC_MSG_RESULT(no)
+ LIBS=$oldLibs
+else
+ AC_MSG_RESULT(yes)
+ AC_DEFINE(HAVE_TCPD_H)
+fi
+dnl
+dnl ------ Headers
+AC_STDC_HEADERS
+if test "$ac_cv_header_stdc" = "no"; then
+ AC_MSG_WARN(Your system doesn't seem to support ANSI C)
+fi
+dnl