(:integer SIGUSR1 "SIGUSR1" #+sb-doc "User defined signal 1." t)
(:integer SIGUSR2 "SIGUSR2" #+sb-doc "User defined signal 2." t)
(:integer SIGRTMIN "SIGRTMIN" #+sb-doc "Smallest real-time signal number." t)
(:integer SIGUSR1 "SIGUSR1" #+sb-doc "User defined signal 1." t)
(:integer SIGUSR2 "SIGUSR2" #+sb-doc "User defined signal 2." t)
(:integer SIGRTMIN "SIGRTMIN" #+sb-doc "Smallest real-time signal number." t)