if/else on NODE_MODULE_VERSION instead of UV_VERSION

src/node_file_source.hpp

@@ -6,6 +6,7 @@
 #pragma GCC diagnostic ignored "-Wunused-parameter"
 #pragma GCC diagnostic ignored "-Wshadow"
 #include <node.h>
+#include <node_version.h>
 #include <nan.h>
 #pragma GCC diagnostic pop
 
@@ -46,10 +47,10 @@ private:
     void processCancel(mbgl::Request*);
 
 private:
-#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10
-    std::map<mbgl::Request*, v8::Persistent<v8::Object>> pending;
-#else
+#if (NODE_MODULE_VERSION > NODE_0_10_MODULE_VERSION)
     std::map<mbgl::Request*, const v8::UniquePersistent<v8::Object> &> pending;
+#else
+    std::map<mbgl::Request*, v8::Persistent<v8::Object>> pending;
 #endif
     Queue *queue = nullptr;
 };