--- a/server/core/maxpasswd.c 2018-01-12 05:06:49.000000000 -0500 +++ b/server/core/maxpasswd.c 2018-01-12 06:50:18.518000000 -0500 @@ -25,6 +25,7 @@ #include <maxscale/cdefs.h> +#include <getopt.h> #include <stdio.h> #include <errno.h> #include <sys/stat.h>