From c897bac54954373f63511702731fe2cb23c0c98e Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Thu, 7 Nov 2013 17:04:36 +0000
Subject: Make function calls tail-recursive

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

(limited to 'src/libexpr/nixexpr.hh')

diff --git a/src/libexpr/nixexpr.hh b/src/libexpr/nixexpr.hh
index d5d7a0233999..8336a48f42fc 100644
--- a/src/libexpr/nixexpr.hh
+++ b/src/libexpr/nixexpr.hh
@@ -205,7 +205,7 @@ struct ExprLambda : Expr
                 % arg % pos);
     };
     void setName(Symbol & name);
-    string showNamePos();
+    string showNamePos() const;
     COMMON_METHODS
 };
 
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