cc -pthread   -Wall -Wextra -Werror -Wno-error=deprecated -Wno-error=deprecated-declarations mqueue/mq_notify.c -o mqueue/mq_notify -D_POSIX_C_SOURCE=202405L -lm -lpthread  -lgdbm_compat -lintl -lnetwork -lbsd -latomic
mqueue/mq_notify.c:2:10: fatal error: mqueue.h: No such file or directory
    2 | #include <mqueue.h>
      |          ^~~~~~~~~~
compilation terminated.