cc -pipe -O   -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations devctl/size_t.c -o devctl/size_t -D_POSIX_C_SOURCE=202405L  -lm -lpthread -lrt  -lrt -lcrypt
devctl/size_t.c:2:10: fatal error: devctl.h: No such file or directory
 #include <devctl.h>
          ^~~~~~~~~~
compilation terminated.