anchor.diff:  (in-package :cl-user)
   
  -(defpackage trivial-signal.signals
  +(defpackage :trivial-signal.signals
     (:use :cl)
     (:export :+sighup+ :+sigint+ :+sigquit+ :+sigill+ :+sigtrap+
              :+sigabrt+ :+sigemt+ :+sigfpe+ :+sigkill+ :+sigbus+
  
positive.code:            :signal-name
             :signal-number))
  
  (defpackage trivial-signal
    (:use :cl
          :trivial-signal.signals)
    (:import-from :cffi
  
negative.code:            :remove-signal-handler
             :remove-all-signal-handlers
             :unix-signal
             :signo)
    (:reexport :trivial-signal.signals))
  