There's no reason to include <time.h> in empio.h, except it's missing

in a couple of other files.  Include it where it's needed.

src/server/idle.c

@@ -33,6 +33,7 @@
 
 #include <config.h>
 
+#include <time.h>
 #include "misc.h"
 #include "player.h"
 #include "empio.h"

src/server/timestamp.c

@@ -34,10 +34,11 @@
 
 #include <config.h>
 
+#include <stdio.h>
+#include <time.h>
 #include "misc.h"
 #include "player.h"
 #include "empthread.h"
-#include <stdio.h>
 #include "prototypes.h"
 #include "optlist.h"
 #include "server.h"

src/server/update.c

@@ -39,6 +39,7 @@
 #ifndef _WIN32
 #include <sys/wait.h>
 #endif
+#include <time.h>
 #include "misc.h"
 #include "player.h"
 #include "empthread.h"