(num_teles, redir_fp, pipe_fp, exec_fd, sendeof, prompt, command)

(ac_intercept, all_missiles, ac_planedamage, ac_doflak, ac_landflak)
(ac_shipflak, ac_fireflak, can_fly, do_evade, att_calcodds)
(emp_setbitmap, lnd_hit_mine, conditions, get_wp, daemonize): Internal
linkage.

src/lib/commands/improve.c

@@ -45,7 +45,7 @@
 #include "optlist.h"
 #include "commands.h"
 
-char *prompt[] = {
+static char *prompt[] = {
     "Improve what ('road' or 'rail')? ",
     "Improve what ('road', 'rail' or 'defense')? "
 };