Use FreeCallback to support mixed Windows runtime libs #152

src/common.cc

@@ -177,4 +177,13 @@ namespace sharp {
     return window_size;
   }
 
+  /*
+    Called when a Buffer undergoes GC, required to support mixed runtime libraries in Windows
+  */
+  void FreeCallback(char* data, void* hint) {
+    if (data != NULL) {
+      g_free(data);
+    }
+  }
+
 } // namespace sharp