cc -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  -liconv
devctl/size_t.c:2:10: fatal error: 'devctl.h' file not found
    2 | #include <devctl.h>
      |          ^~~~~~~~~~
1 error generated.