cc -pthread -Wall -Wextra timespec_get.c -o timespec_get -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lintl -liconv relibc getrlimit(3, 0x7ffffffffc70): not implemented relibc getrlimit(3, 0x7ffffffffb80): not implemented relibc getrlimit(9, 0x7ffffffffb40): not implemented relibc getrlimit(9, 0x7ffffffffb70): not implemented relibc getrlimit(5, 0x7ffffffffb70): not implemented relibc getrlimit(9, 0x7ffffffffb40): not implemented timespec_get.c: In function 'main': timespec_get.c:10:22: warning: implicit declaration of function 'timespec_get' [-Wimplicit-function-declaration] 10 | int result = timespec_get(&ts, TIME_UTC); | ^~~~~~~~~~~~ timespec_get.c:10:40: error: 'TIME_UTC' undeclared (first use in this function) 10 | int result = timespec_get(&ts, TIME_UTC); | ^~~~~~~~ timespec_get.c:10:40: note: each undeclared identifier is reported only once for each function it appears in