From 69befd33a9e3600c125803694fbac96053f943b0 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Thu, 24 Oct 2013 03:08:34 +0200
Subject: [PATCH] Remove unnecessary call to forceStringNoCtx

---
 src/libexpr/eval.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libexpr/eval.cc b/src/libexpr/eval.cc
index ae2943157..29b3e3c82 100644
--- a/src/libexpr/eval.cc
+++ b/src/libexpr/eval.cc
@@ -1083,7 +1083,7 @@ bool EvalState::isDerivation(Value & v)
     if (i == v.attrs->end()) return false;
     forceValue(*i->value);
     if (i->value->type != tString) return false;
-    return forceStringNoCtx(*i->value) == "derivation";
+    return strcmp(i->value->string.s, "derivation") == 0;
 }