* cygpath.cc (close_arg): Remove unused static.

* mkgroup.c (enum_local_users): Avoid compiler warning.
(enum_users): Ditto.
* mkpasswd.c: Ditto throughout.
* ssp.c: Ditto throughout.

winsup/utils/mkpasswd.c

@@ -14,6 +14,7 @@
 #include <stdio.h>
 #include <windows.h>
 #include <io.h>
+#include <unistd.h>
 #include <sys/cygwin.h>
 #include <getopt.h>
 #include <lmaccess.h>