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--- play.c.orig 1997-03-25 15:25:12 UTC +++ play.c @@ -4,6 +4,7 @@ static char rcsid[] = "$Id: play.c,v 1.7 #include <stdio.h> #include <stdlib.h> +#include <unistd.h> #include <fcntl.h> #include <err.h> #include <signal.h>