cc -pthread  -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations utmpx/pid_t.c -o utmpx/pid_t -D_POSIX_C_SOURCE=202405L -lm -lpthread -lrt -lintl -liconv
utmpx/pid_t.c:7:10: fatal error: utmpx.h: No such file or directory
    7 | #include <utmpx.h>
      |          ^~~~~~~~~
compilation terminated.