move thr_client_alarm initialization to mysqld.cc

(in thr_alarm.cc it happened too late).


mysys/thr_alarm.c:
  move thr_client_alarm initialization to mysqld.cc
  (here it happened too late)
sql/mysqld.cc:
  move thr_client_alarm initialization to mysqld.cc
  (in thr_alarm.cc it happened too late).
  moved thr_kill_signal initialization to init_signals()

mysys/thr_alarm.c

@@ -78,10 +78,6 @@ void init_thr_alarm(uint max_alarms)
   sigfillset(&full_signal_set);			/* Neaded to block signals */
   pthread_mutex_init(&LOCK_alarm,MY_MUTEX_INIT_FAST);
   pthread_cond_init(&COND_alarm,NULL);
-  if (thd_lib_detected == THD_LIB_LT)
-    thr_client_alarm= SIGALRM;
-  else
-    thr_client_alarm= SIGUSR1;
 #ifndef USE_ALARM_THREAD
   if (thd_lib_detected != THD_LIB_LT)
 #endif

sql/mysqld.cc

@@ -2046,6 +2046,17 @@ static void init_signals(void)
   struct sigaction sa;
   DBUG_ENTER("init_signals");
 
+  if (thd_lib_detected == THD_LIB_LT)
+  {
+    thr_client_alarm= SIGALRM;
+    thr_kill_signal= SIGINT;
+  }
+  else
+  {
+    thr_client_alarm= SIGUSR1;
+    thr_kill_signal= SIGUSR2;
+  }
+
   if (test_flags & TEST_SIGINT)
   {
     my_sigset(thr_kill_signal, end_thread_signal);
@@ -3140,9 +3151,6 @@ int main(int argc, char **argv)
 
   MY_INIT(argv[0]);		// init my_sys library & pthreads
 
-  /* Set signal used to kill MySQL */
-  thr_kill_signal= thd_lib_detected == THD_LIB_LT ? SIGINT : SIGUSR2;
-
 #ifdef _CUSTOMSTARTUPCONFIG_
   if (_cust_check_startup())
   {