cc -pthread  -Wall -Wextra -Werror=implicit-function-declaration tiocsctty-is-needed.c -o tiocsctty-is-needed -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lintl -liconv
relibc getrlimit(3, 0x7ffffffffc80): not implemented
relibc getrlimit(3, 0x7ffffffffba0): not implemented
relibc getrlimit(9, 0x7ffffffffb60): not implemented
relibc getrlimit(9, 0x7ffffffffb90): not implemented
relibc getrlimit(5, 0x7ffffffffb90): not implemented
relibc getrlimit(9, 0x7ffffffffb60): not implemented
tiocsctty-is-needed.c: In function 'main':
tiocsctty-is-needed.c:38:33: error: implicit declaration of function 'tcgetsid'; did you mean 'getsid'? [-Werror=implicit-function-declaration]
   38 |                 pid_t tty_sid = tcgetsid(pty);
      |                                 ^~~~~~~~
      |                                 getsid
cc1: some warnings being treated as errors