cc -pthread  -Wall -Wextra -Werror=implicit-function-declaration sys_stat/mkdirat.c -o sys_stat/mkdirat -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/mkdirat.c: In function 'main':
sys_stat/mkdirat.c:53:14: error: implicit declaration of function 'mkdirat'; did you mean 'mkdir'? [-Werror=implicit-function-declaration]
   53 |         if ( mkdirat(dirfd, "foo", 0700) < 0 )
      |              ^~~~~~~
      |              mkdir
cc1: some warnings being treated as errors