From b1c63dc36230bfe4ac4d128f6647846a995feb40 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <e.dolstra@tudelft.nl>
Date: Tue, 30 May 2006 11:31:33 +0000
Subject: [PATCH] * Don't use badTerm, it gives awful error messages.

---
 src/libexpr/get-drvs.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libexpr/get-drvs.cc b/src/libexpr/get-drvs.cc
index 19778c6ab..8e439f08b 100644
--- a/src/libexpr/get-drvs.cc
+++ b/src/libexpr/get-drvs.cc
@@ -80,7 +80,8 @@ static bool getDerivation(EvalState & state, Expr e,
         DrvInfo drv;
     
         a = attrs->get(toATerm("name"));
-        if (!a) throw badTerm("derivation name missing", e);
+        /* !!! We really would like to have a decent back trace here. */
+        if (!a) throw Error("derivation name missing");
         drv.name = evalString(state, a);
 
         a = attrs->get(toATerm("system"));