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-rw-r--r--src/store.hh4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/store.hh b/src/store.hh
index 8b02cba99681..8b41478a24af 100644
--- a/src/store.hh
+++ b/src/store.hh
@@ -8,8 +8,12 @@
 using namespace std;
 
 
+/* Copy a path recursively. */
 void copyPath(string src, string dst);
 
+/* Register a substitute. */
+void registerSubstitute(const Hash & srcHash, const Hash & subHash);
+
 /* Register a path keyed on its hash. */
 Hash registerPath(const string & path, Hash hash = Hash());