cc -pthread  -Wall -Wextra -Werror=implicit-function-declaration stdio/vdprintf.c -o stdio/vdprintf -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE -lm -lpthread -lnetwork -lbsd -latomic
stdio/vdprintf.c: In function 'indirect':
stdio/vdprintf.c:16:19: error: implicit declaration of function 'vdprintf'; did you mean 'vsprintf'? [-Werror=implicit-function-declaration]
   16 |         int ret = vdprintf(fds[1], format, ap);
      |                   ^~~~~~~~
      |                   vsprintf
cc1: some warnings being treated as errors