cc -pipe -O   -pthread  -Wall -Wextra -Werror=implicit-function-declaration devctl/posix_devctl.c -o devctl/posix_devctl -D_GNU_SOURCE -D_BSD_SOURCE -D_ALL_SOURCE -D_DEFAULT_SOURCE  -lm -lpthread -lrt  -lrt -lcrypt
devctl/posix_devctl.c:4:10: fatal error: devctl.h: No such file or directory
 #include <devctl.h>
          ^~~~~~~~~~
compilation terminated.