Core/Game: Move singleton instances into compilation units

* Fixes issues when building shared libraries
  (prevents gcc and clang from providing several instance)

(cherry picked from commit 329225b40d110bed634f8cd0a1ab5c6dc7bbbdd1)

1 files changed, 1 insertions, 5 deletions

diff --git a/src/server/game/Scripting/ScriptMgr.h b/src/server/game/Scripting/ScriptMgr.h
index 8a00305b4da..750298eec86 100644
--- a/src/server/game/Scripting/ScriptMgr.h
+++ b/src/server/game/Scripting/ScriptMgr.h
@@ -857,11 +857,7 @@ class ScriptMgr
         virtual ~ScriptMgr();
 
     public: /* Initialization */
-        static ScriptMgr* instance()
-        {
-            static ScriptMgr instance;
-            return &instance;
-        }
+        static ScriptMgr* instance();
 
         void Initialize();
         void LoadDatabase();