Supply prototypes where possible. This uncovered type errors with

thread entrypoints:
(lwpSelect, shutdown_sequence): Parameters didn't match thread entry
point prototype.
(lwpEntryPoint): Arguments didn't match thread entry point prototype.

Change linkage of functions without prototype declaration to static
where possible.

Remove some superflous declarations, replace others by suitable
includes.

src/server/idle.c

@@ -40,8 +40,7 @@
 
 /*ARGSUSED*/
 void
-player_kill_idle(argv)
-void *argv;
+player_kill_idle(void *argv)
 {
     extern int max_idle;
     struct player *p;

src/server/lostitem.c

@@ -43,8 +43,7 @@
 
 /*ARGSUSED*/
 void
-delete_lostitems(argv)
-void *argv;
+delete_lostitems(void *argv)
 {
     extern int lost_items_timeout;
     time_t now;

src/server/main.c

@@ -68,10 +68,10 @@
 
 s_char program[] = "server";
 
-extern void player_accept();
-extern void player_kill_idle();
-extern void update_sched();
-extern void delete_lostitems();
+extern void player_accept(void *);
+extern void player_kill_idle(void *);
+extern void update_sched(void *);
+extern void delete_lostitems(void *);
 void nullify_objects(void);
 void init_files(void);
 void close_files(void);
@@ -81,18 +81,16 @@ static void loc_NTInit(void);
 static void loc_NTTerm(void);
 #endif
 
-extern void mobility_init();
-extern void mobility_check();
-extern void market_update();
+extern void mobility_init(void);
+extern void mobility_check(void *);
+extern void market_update(void *);
 
 #if !defined(_WIN32)
 static int mainpid = 0;
 #endif
 
 int
-main(argc, argv)
-int argc;
-char *argv[];
+main(int argc, char **argv)
 {
     time_t now;
     int hour[2];

src/server/marketup.c

@@ -42,8 +42,7 @@
 
 /*ARGSUSED*/
 void
-check_all_markets(argv)
-void *argv;
+check_all_markets(void *argv)
 {
     player->proc = empth_self();
     player->cnum = 0;
@@ -67,8 +66,7 @@ void *argv;
 
 /*ARGSUSED*/
 void
-market_update(argv)
-void *argv;
+market_update(void *argv)
 {
     time_t now;
     struct player *dp;

src/server/shutdown.c

@@ -50,9 +50,7 @@ shutdown_init(void)
 }
 
 void
-shutdown_sequence(argc, argv)
-int argc;
-s_char **argv;
+shutdown_sequence(void *argv)
 {
     struct natstr *god;
     struct tm *tm;

src/server/timestamp.c

@@ -42,9 +42,7 @@
 
 /*ARGSUSED*/
 void
-mobility_check(argv)
-void *argv;
-
+mobility_check(void *argv)
 {
     extern s_char *timestampfil;
     extern int updating_mob;
@@ -93,7 +91,7 @@ void *argv;
 }
 
 void
-mobility_init()
+mobility_init(void)
 {
     extern s_char *timestampfil;
     extern int updating_mob;

src/server/update.c

@@ -41,14 +41,13 @@
 
 empth_sem_t *update_sem;
 
-extern void update_main();
-extern void update_wait();
+extern void update_main(void *);
+extern void update_wait(void *argv);
 time_t update_time;
 
 /*ARGSUSED*/
 void
-update_sched(argv)
-void *argv;
+update_sched(void *argv)
 {
     extern int s_p_etu;
     extern int etu_per_update;
@@ -110,8 +109,7 @@ void *argv;
 
 /*ARGSUSED*/
 void
-update_wait(argv)
-void *argv;
+update_wait(void *argv)
 {
     struct player *p;
     int running;