From 262b73e6ad1ec11fb14d796cb6bb3e3c7b75d148 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Tue, 22 Apr 2008 08:16:20 +0000
Subject: [PATCH] * importPath: don't fail if the deriver is empty.

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

diff --git a/src/libstore/local-store.cc b/src/libstore/local-store.cc
index ea1770fc..2e53d0dc 100644
--- a/src/libstore/local-store.cc
+++ b/src/libstore/local-store.cc
@@ -839,7 +839,7 @@ Path LocalStore::importPath(bool requireSignature, Source & source)
             
             /* !!! if we were clever, we could prevent the hashPath()
                here. */
-            if (!isValidPath(deriver)) deriver = "";
+            if (deriver != "" && !isValidPath(deriver)) deriver = "";
             registerValidPath(dstPath,
                 hashPath(htSHA256, dstPath), references, deriver);
         }