cc -Wall -ggdb -O -D_OLD_TERMIOS   -c -o zap.o zap.c
zap.c:16: warning: return type defaults to `int'
zap.c: In function `main':
zap.c:27: warning: implicit declaration of function `exit'
zap.c:32: warning: implicit declaration of function `strindex'
zap.c:34: warning: implicit declaration of function `strlen'
zap.c:36: warning: implicit declaration of function `ttyin'
cc -Wall -ggdb -O -D_OLD_TERMIOS   -c -o strindex.o strindex.c
cc -Wall -ggdb -O -D_OLD_TERMIOS   -c -o ttyin.o ttyin.c
ttyin.c: In function `ttyin':
ttyin.c:23: warning: implicit declaration of function `exit'
ttyin.c:27: warning: implicit declaration of function `system'
cc -Wall -ggdb -O -D_OLD_TERMIOS   -c -o efopen.o efopen.c
efopen.c: In function `efopen':
efopen.c:21: warning: implicit declaration of function `exit'
cc -Wall -ggdb -O -D_OLD_TERMIOS zap.o strindex.o ttyin.o efopen.o  -o zap
size zap
__TEXT	__DATA	__OBJC	others	dec	hex
8192	4096	0	16384	28672	7000
cc -Wall -ggdb -O -D_OLD_TERMIOS   -c -o pick.o pick.c
pick.c:13: warning: return type defaults to `int'
pick.c: In function `main':
pick.c:21: warning: implicit declaration of function `strcmp'
pick.c:25: warning: implicit declaration of function `strlen'
pick.c:26: warning: implicit declaration of function `pick'
pick.c:34: warning: implicit declaration of function `exit'
pick.c: At top level:
pick.c:39: warning: return type defaults to `int'
pick.c: In function `pick':
pick.c:42: warning: implicit declaration of function `ttyin'
pick.c:45: warning: control reaches end of non-void function
cc -Wall -ggdb -O -D_OLD_TERMIOS pick.o ttyin.o efopen.o  -o pick
size pick
__TEXT	__DATA	__OBJC	others	dec	hex
8192	4096	0	12288	24576	6000