cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations pthread/pthread_cleanup_push.c -o pthread/pthread_cleanup_push -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
pthread/pthread_cleanup_push.c:3:40: error: ‘pthread_cleanup_push’ undeclared here (not in a function)
    3 | void (*foo)(void (*)(void*), void *) = pthread_cleanup_push;
      |                                        ^~~~~~~~~~~~~~~~~~~~