sys.c:343: warning: implicit declaration of function `bzero'
select.c:40: warning: implicit declaration of function `bzero'
getopt.c:193: warning: function declaration isn't a prototype
getopt.c:197: warning: function declaration isn't a prototype
getopt.c:211: warning: function declaration isn't a prototype
getopt.c:241: warning: function declaration isn't a prototype
getopt.c:653: warning: function declaration isn't a prototype
getopt1.c:47: warning: function declaration isn't a prototype