Fix some type mismatches.

--- mcabber-1.1.2/mcabber/screen.c	2020-09-19 15:21:13.000000000 +0100
+++ mcabber-1.1.2/mcabber/screen.c	2025-06-04 21:34:36.615376817 +0100
@@ -90,7 +90,7 @@
                            const gchar *message, gpointer user_data);
 
 #ifdef XEP0085
-static gboolean scr_chatstates_timeout();
+static gboolean scr_chatstates_timeout(void *);
 #endif
 
 #if defined(WITH_ENCHANT) || defined(WITH_ASPELL)
@@ -2485,7 +2485,7 @@
 }
 
 #ifdef XEP0085
-static gboolean scr_chatstates_timeout(void)
+static gboolean scr_chatstates_timeout(void *dummy)
 {
   time_t now;
   time(&now);
--- mcabber-1.1.2/mcabber/xmpp.c	2020-09-19 15:21:13.000000000 +0100
+++ mcabber-1.1.2/mcabber/xmpp.c	2025-06-04 21:33:53.201451804 +0100
@@ -50,7 +50,7 @@
 static guint AutoConnection;
 
 inline void update_last_use(void);
-inline gboolean xmpp_reconnect();
+inline gboolean xmpp_reconnect(void *);
 
 enum imstatus mystatus = offline;
 static enum imstatus mywantedstatus = available;
@@ -781,7 +781,7 @@
     scr_LogPrint(LPRINT_LOGNORM, "Authentication failed");
 }
 
-gboolean xmpp_reconnect()
+gboolean xmpp_reconnect(void *dummy)
 {
   if (!lconnection)
     xmpp_connect();