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-rw-r--r--src/libutil/hash.hh3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/libutil/hash.hh b/src/libutil/hash.hh
index 062d97254bfc..81425b23494c 100644
--- a/src/libutil/hash.hh
+++ b/src/libutil/hash.hh
@@ -96,6 +96,7 @@ private:
 
 public:
     HashSink(HashType ht);
+    HashSink(const HashSink & h);
     ~HashSink();
     virtual void operator () (const unsigned char * data, unsigned int len);
     Hash finish();
@@ -104,5 +105,5 @@ public:
 
 }
 
-    
+
 #endif /* !__HASH_H */