cc -O2 -pipe  -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 
devctl/posix_devctl.c:4:10: fatal error: 'devctl.h' file not found
    4 | #include <devctl.h>
      |          ^~~~~~~~~~
1 error generated.