1 files changed, 9 insertions, 2 deletions
diff --git a/include/utils/Singleton.h b/include/utils/Singleton.h
index ffc03cb5d..7cc4c18be 100644
--- a/include/utils/Singleton.h
+++ b/include/utils/Singleton.h
@@ -19,6 +19,7 @@
 
 #include <stdint.h>
 #include <sys/types.h>
+#include <utils/Mutex.h>
 #include <utils/threads.h>
 #include <cutils/compiler.h>
 
@@ -45,8 +46,8 @@ public:
     }
     
 protected:
-    ~Singleton() { };
-    Singleton() { };
+    ~Singleton() { }
+    Singleton() { }
 
 private:
     Singleton(const Singleton&);
@@ -55,6 +56,12 @@ private:
     static TYPE* sInstance;
 };
 
+template <typename TYPE>
+Mutex Singleton<TYPE>::sLock;
+
+template <typename TYPE>
+TYPE* Singleton<TYPE>::sInstance;
+
 /*
  * use ANDROID_SINGLETON_STATIC_INSTANCE(TYPE) in your implementation file
  * (eg: <TYPE>.cpp) to create the static instance of Singleton<>'s attributes,