AC_ARG_ENABLE(debug, [AC_HELP_STRING([--enable-debug], [compile with debugging support. Be warned that debugging support can eat a large amount of CPU when many clients are connected. Also, debug logs can become very large!])], , enable_debug=no)
if test "x$enable_debug" = "xyes" ; then
AC_DEFINE([DEBUG], [1], [Define if debugging is enabled.])