cc -pthread -Wall -Wextra -Werror=implicit-function-declaration sys_stat/mkfifoat.c -o sys_stat/mkfifoat -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 sys_stat/mkfifoat.c: In function 'main': sys_stat/mkfifoat.c:61:14: error: implicit declaration of function 'mkfifoat'; did you mean 'mkfifo'? [-Werror=implicit-function-declaration] 61 | if ( mkfifoat(dirfd, "foo", 0600) < 0 ) | ^~~~~~~~ | mkfifo cc1: some warnings being treated as errors