Description:


gcc -march=x86-64 -mtune=generic -O2 -pipe -fstack-protector --param=ssp-buffer-size=4 -I. setserial.c -o setserial
nroff -man setserial.8 > setserial.cat
setserial.c: In function 'get_serial':
setserial.c:426:16: error: 'TIOCGSERIAL' undeclared (first use in this function)
if (ioctl(fd, TIOCGSERIAL, &serinfo) < 0) {
^
setserial.c:426:16: note: each undeclared identifier is reported only once for each function it appears in
setserial.c: In function 'set_serial':
setserial.c:488:4: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(201);
^
setserial.c:492:16: error: 'TIOCGSERIAL' undeclared (first use in this function)
if (ioctl(fd, TIOCGSERIAL, &old_serinfo) < 0) {
^
setserial.c:494:3: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:512:4: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:516:4: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:520:4: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:541:5: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:569:18: error: 'TIOCSSERIAL' undeclared (first use in this function)
if (ioctl(fd, TIOCSSERIAL, &new_serinfo) < 0) {
^
setserial.c:571:5: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:573:18: error: 'TIOCSERCONFIG' undeclared (first use in this function)
if (ioctl(fd, TIOCSERCONFIG) < 0) {
^
setserial.c:575:5: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:579:5: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:585:5: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:592:5: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:608:4: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:613:3: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c: In function 'do_wild_intr':
setserial.c:628:3: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:630:16: error: 'TIOCSERSWILD' undeclared (first use in this function)
if (ioctl(fd, TIOCSERSWILD, &wild_mask) < 0) {
^
setserial.c:632:3: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c:634:16: error: 'TIOCSERGWILD' undeclared (first use in this function)
if (ioctl(fd, TIOCSERGWILD, &wild_mask) < 0) {
^
setserial.c:636:3: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c: In function 'usage':
setserial.c:714:2: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(1);
^
setserial.c: In function 'main':
setserial.c:749:4: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(0);
^
setserial.c:764:3: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(0);
^
setserial.c:770:3: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(0);
^
setserial.c:776:2: warning: incompatible implicit declaration of built-in function 'exit' [enabled by default]
exit(0);
^
Makefile:28: recipe for target 'setserial' failed
make: *** [setserial] Error 1
==> ERROR: A failure occurred in build().
Aborting...

Steps to reproduce:
sudo extra-x86_64-build