#include <sys/ioctl.h>
#include <fcntl.h>
+/* Hopefully, grp.h declares initgroups(). If we run into a platform
+ where it doesn't, we could consider declaring it here as well. */
+#include <grp.h>
+
/* This define is needed for Berkeley db v2 and above to
* make the header file expose the 'historical' ndbm APIs.
* We define it unconditionally because this is simple and