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, 6 insertions, 0 deletions

diff --git a/src/server/game/Texts/CreatureTextMgr.cpp b/src/server/game/Texts/CreatureTextMgr.cpp
index 499f0c9cbf0..d8df3310765 100644
--- a/src/server/game/Texts/CreatureTextMgr.cpp
+++ b/src/server/game/Texts/CreatureTextMgr.cpp
@@ -72,6 +72,12 @@ class PlayerTextBuilder
         WorldObject const* _target;
 };
 
+CreatureTextMgr* CreatureTextMgr::instance()
+{
+    static CreatureTextMgr instance;
+    return &instance;
+}
+
 void CreatureTextMgr::LoadCreatureTexts()
 {
     uint32 oldMSTime = getMSTime();