1 files changed, 10 insertions, 3 deletions
diff --git a/nix/libstore/store-api.hh b/nix/libstore/store-api.hh
index 3764f3e542..9403cbee19 100644
--- a/nix/libstore/store-api.hh
+++ b/nix/libstore/store-api.hh
@@ -88,10 +88,17 @@ struct ValidPathInfo
     Path deriver;
     Hash hash;
     PathSet references;
-    time_t registrationTime;
-    unsigned long long narSize; // 0 = unknown
+    time_t registrationTime = 0;
+    unsigned long long narSize = 0; // 0 = unknown
     unsigned long long id; // internal use only
-    ValidPathInfo() : registrationTime(0), narSize(0) { }
+
+    bool operator == (const ValidPathInfo & i) const
+    {
+        return
+            path == i.path
+            && hash == i.hash
+            && references == i.references;
+    }
 };
 
 typedef list<ValidPathInfo> ValidPathInfos;