From f7b650d234dffd72b2c70ee25d9e333d433feba6 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Tue, 28 Aug 2012 11:47:26 -0400
Subject: [PATCH] Make "nix-instantiate -" interruptible

---
 src/nix-instantiate/nix-instantiate.cc | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/src/nix-instantiate/nix-instantiate.cc b/src/nix-instantiate/nix-instantiate.cc
index beb7fa0249..6ddf9f069e 100644
--- a/src/nix-instantiate/nix-instantiate.cc
+++ b/src/nix-instantiate/nix-instantiate.cc
@@ -26,9 +26,7 @@ void printHelp()
 static Expr * parseStdin(EvalState & state)
 {
     startNest(nest, lvlTalkative, format("parsing standard input"));
-    string s, s2;
-    while (getline(std::cin, s2)) s += s2 + "\n";
-    return state.parseExprFromString(s, absPath("."));
+    return state.parseExprFromString(drainFD(0), absPath("."));
 }