mjn3 noticed that crond and crontab had #include <pwd.h> and #include <grp.h>

but this conflicted with the internal pwd_.h and grp_.h.  Removing these
headers is correct, since the correct pwd/grp headers will be included via
busybox.h
 -Erik

miscutils/crontab.c

@@ -18,9 +18,7 @@
 #include <time.h>
 #include <dirent.h>
 #include <fcntl.h>
-#include <pwd.h>
 #include <unistd.h>
-#include <grp.h>
 #include <syslog.h>
 #include <signal.h>
 #include <getopt.h>