Core/Achievements: Use ACE_OS::localtime_r instead of localtime in my previous commit for thread safety.

Thanks to @Shauren

1 files changed, 2 insertions, 2 deletions

diff --git a/src/server/game/Achievements/AchievementMgr.cpp b/src/server/game/Achievements/AchievementMgr.cpp
index 0a1d4695874..8d0f6938532 100644
--- a/src/server/game/Achievements/AchievementMgr.cpp
+++ b/src/server/game/Achievements/AchievementMgr.cpp
@@ -425,8 +425,8 @@ bool AchievementCriteriaData::Meets(uint32 criteria_id, Player const* source, Un
         case ACHIEVEMENT_CRITERIA_REQUIRE_NTH_BIRTHDAY:
         {
             time_t birthday_start = time_t(sWorld->getIntConfig(CONFIG_BIRTHDAY_TIME));
-
-            tm birthday_tm = *localtime(&birthday_start);
+            tm birthday_tm;
+            ACE_OS::localtime_r(&birthday_start, &birthday_tm);
 
             // exactly N birthday
             birthday_tm.tm_year += birthday_login.nth_birthday;