AC_DEFUN([LX_ENABLE_GUI],

 [

   AC_ARG_ENABLE([gui],

 AS_HELP_STRING([--enable-gui], [build the GUI])

 AS_HELP_STRING([--disable-gui], [do not build the GUI @<:@default@:>@]),

          [], [enable_gui=no])

   AC_MSG_CHECKING([whether to build the GUI])

   if test x"$enable_gui" != x"no"; then

       AC_MSG_RESULT([yes])

   else

       AC_MSG_RESULT([no])

   fi

   if test x"$enable_gui" != x"no"; then

     PKG_CHECK_MODULES([GTK], [libgnomecanvasmm-2.6 >= 2.6.0])

   fi

   AM_CONDITIONAL([WANT_GUI], [test x"$enable_gui" != x"no"])

 ])