Core/Game: Move singleton instances into compilation units

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

1 files changed, 1 insertions, 5 deletions

diff --git a/src/server/game/Instances/InstanceSaveMgr.h b/src/server/game/Instances/InstanceSaveMgr.h
index a09325e9ce7..699b6aec574 100644
--- a/src/server/game/Instances/InstanceSaveMgr.h
+++ b/src/server/game/Instances/InstanceSaveMgr.h
@@ -158,11 +158,7 @@ class InstanceSaveManager
     public:
         typedef std::unordered_map<uint32 /*InstanceId*/, InstanceSave*> InstanceSaveHashMap;
 
-        static InstanceSaveManager* instance()
-        {
-            static InstanceSaveManager instance;
-            return &instance;
-        }
+        static InstanceSaveManager* instance();
 
         void Unload();