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-rw-r--r--src/libstore/store.hh3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libstore/store.hh b/src/libstore/store.hh
index 3b18664de646..d5d8ea81eae8 100644
--- a/src/libstore/store.hh
+++ b/src/libstore/store.hh
@@ -89,6 +89,9 @@ void canonicalisePathMetaData(const Path & path);
 /* Checks whether a path is valid. */ 
 bool isValidPath(const Path & path);
 
+/* Queries the hash of a valid path. */ 
+Hash queryPathHash(const Path & path);
+
 /* Sets the set of outgoing FS references for a store path.  Use with
    care! */
 void setReferences(const Transaction & txn, const Path & storePath,