From 2ea3bebc23b2d13475c00191f6005740fbdc7771 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Tue, 27 Feb 2007 23:18:57 +0000
Subject: [PATCH] * Doh!  The deriver can be empty.

---
 src/libstore/local-store.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index c91368865..dce2b449e 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -826,7 +826,8 @@ Path LocalStore::importPath(bool requireSignature, Source & source)
 
     PathSet references = readStorePaths(hashAndReadSource);
 
-    Path deriver = readStorePath(hashAndReadSource);
+    Path deriver = readString(hashAndReadSource);
+    if (deriver != "") assertStorePath(deriver);
 
     Hash hash = hashAndReadSource.hashSink.finish();
     hashAndReadSource.hashing = false;