Added typecasts to shut the compiler warnings

@@ -251,7 +251,7 @@ auth_gssapi (struct imap4d_command *command, char **username)
   if (imap4d_gss_userok (&client_name, *username))
     {
       syslog (LOG_NOTICE, "GSSAPI user %s is NOT authorized as %s",
-	      client_name.value, *username);
+	      (char *) client_name.value, *username);
       util_finish (command, RESP_NO,
 		   "GSSAPI user %s is NOT authorized as %s",
 		   client_name.value, *username);
@@ -264,7 +264,7 @@ auth_gssapi (struct imap4d_command *command, char **username)
   else
     {
       syslog (LOG_NOTICE, "GSSAPI user %s is authorized as %s",
-	      client_name.value, *username);
+	      (char *) client_name.value, *username);
     }
 
   gss_release_buffer (&min_stat, &client_name);

@@ -66,7 +66,8 @@ mu_scm_body_print (SCM body_smob, SCM port, scm_print_state * pstate)
   scm_puts (buffer, port);
   scm_puts ("\" ", port);
 
-  snprintf (buffer, sizeof (buffer), "%3ld %-5ld", b_lines, b_size);
+  snprintf (buffer, sizeof (buffer), "%3lu %-5lu",
+	    (unsigned long) b_lines, (unsigned long) b_size);
   scm_puts (buffer, port);
 
   scm_puts (">", port);

@@ -109,7 +109,8 @@ mu_scm_message_print (SCM message_smob, SCM port, scm_print_state * pstate)
       message_size (mum->msg, &m_size);
       message_lines (mum->msg, &m_lines);
       
-      snprintf (buffer, sizeof (buffer), "%3ld %-5ld", m_lines, m_size);
+      snprintf (buffer, sizeof (buffer), "%3lu %-5lu",
+		(unsigned long) m_lines, (unsigned long) m_size);
       scm_puts (buffer, port);
     }
   scm_puts (">", port);

@@ -629,10 +629,10 @@ _locker_lock_dotlock (locker_t lock)
   gethostname (host, sizeof (host));
   host[MAXHOSTNAMELEN] = 0;
 
-  snprintf (now, sizeof (now), "%d", time (0));
+  snprintf (now, sizeof (now), "%lu", (unsigned long) time (0));
   now[sizeof (now) - 1] = 0;
 
-  snprintf (pid, sizeof (pid), "%d", getpid ());
+  snprintf (pid, sizeof (pid), "%lu", (unsigned long) getpid ());
   pid[sizeof (pid) - 1] = 0;
 		  
   sz = strlen (lock->file) + 1 /* "." */