x86_64-managarm-gcc -pthread  -Wall -Wextra -Werror=implicit-function-declaration threads/mtx_timedlock.c -o threads/mtx_timedlock -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lintl -liconv
threads/mtx_timedlock.c: In function ‘main’:
threads/mtx_timedlock.c:19:9: error: implicit declaration of function ‘timespec_get’ [-Wimplicit-function-declaration]
   19 |         timespec_get(&long_timeout, TIME_UTC);
      |         ^~~~~~~~~~~~
threads/mtx_timedlock.c:19:37: error: ‘TIME_UTC’ undeclared (first use in this function)
   19 |         timespec_get(&long_timeout, TIME_UTC);
      |                                     ^~~~~~~~
threads/mtx_timedlock.c:19:37: note: each undeclared identifier is reported only once for each function it appears in