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)

2 files changed, 7 insertions, 5 deletions

diff --git a/src/server/game/Server/Protocol/PacketLog.cpp b/src/server/game/Server/Protocol/PacketLog.cpp
index 57b76304a77..11a02828998 100644
--- a/src/server/game/Server/Protocol/PacketLog.cpp
+++ b/src/server/game/Server/Protocol/PacketLog.cpp
@@ -69,6 +69,12 @@ PacketLog::~PacketLog()
     _file = NULL;
 }
 
+PacketLog* PacketLog::instance()
+{
+    static PacketLog instance;
+    return &instance;
+}
+
 void PacketLog::Initialize()
 {
     std::string logsDir = sConfigMgr->GetStringDefault("LogsDir", "");
diff --git a/src/server/game/Server/Protocol/PacketLog.h b/src/server/game/Server/Protocol/PacketLog.h
index 45a3f0a4655..b211cfbf3ca 100644
--- a/src/server/game/Server/Protocol/PacketLog.h
+++ b/src/server/game/Server/Protocol/PacketLog.h
@@ -40,11 +40,7 @@ class PacketLog
         std::once_flag _initializeFlag;
 
     public:
-        static PacketLog* instance()
-        {
-            static PacketLog instance;
-            return &instance;
-        }
+        static PacketLog* instance();
 
         void Initialize();
         bool CanLogPacket() const { return (_file != NULL); }