From cb130281bae11bdc8e95ed2108fcd6039e730411 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Ludovic=20Court=C3=A8s?= <ludo@gnu.org>
Date: Mon, 21 Dec 2009 01:02:47 +0000
Subject: [PATCH] perl: Fix for impure GNU/kFreeBSD builds.

svn path=/nixpkgs/trunk/; revision=19059
---
 pkgs/development/interpreters/perl-5.10/default.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/interpreters/perl-5.10/default.nix b/pkgs/development/interpreters/perl-5.10/default.nix
index 9e745ae18141..96451380e6d5 100644
--- a/pkgs/development/interpreters/perl-5.10/default.nix
+++ b/pkgs/development/interpreters/perl-5.10/default.nix
@@ -46,7 +46,9 @@ stdenv.mkDerivation {
   preBuild =
     ''
       # Make Cwd work on NixOS (where we don't have a /bin/pwd).
-      ${if stdenv.isDarwin then "" else "substituteInPlace lib/Cwd.pm --replace \"'/bin/pwd'\" \"'$(type -tP pwd)'\""}
+      ${if (stdenv.isDarwin || stdenv.system == "i686-gnu/kfreebsd")
+        then ""
+        else "substituteInPlace lib/Cwd.pm --replace \"'/bin/pwd'\" \"'$(type -tP pwd)'\""}
     '';
 
   setupHook = ./setup-hook.sh;