gcc -pthread  -Wall -Wextra -Werror=implicit-function-declaration stdio/dprintf.c -o stdio/dprintf -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lrt -lxnet -lsocket -latomic
stdio/dprintf.c: In function 'main':
stdio/dprintf.c:13:19: error: implicit declaration of function 'dprintf'; did you mean 'vprintf'? [-Wimplicit-function-declaration]
   13 |         int ret = dprintf(fds[1], "hello %s %d", "world", 42);
      |                   ^~~~~~~
      |                   vprintf