AC_ARG_ENABLE(xmanage, [ --enable-xmanage enable build of daq_xmanage, needs tk/X11])
AC_ARG_ENABLE(manage, [ --enable-manage enable build of daq_manage, needs tcl])
AC_ARG_WITH(param, [ --with-param[=ARG] use the given parameter source, default is "tcl"],,with_param="tcl")
-AC_ARG_WITH(hardware, [ --with-hardware[=ARG] use the given readout code, default is "soft"],,with_hardware="soft")
+AC_ARG_WITH(hardware, [ --with-hardware[=ARG] use the given readout code, default is "soft",
+ possible values are rich, mdc, show, trig, soft],,with_hardware="soft")
dnl Checks for programs.
AC_PROG_CC