From 1778200519a18ae00751ab3015d0e665373c32f6 Mon Sep 17 00:00:00 2001
From: Peter Simons <simons@cryp.to>
Date: Thu, 29 Aug 2013 10:40:50 +0200
Subject: [PATCH] perl: re-enable the postPatch hook on Darwin

The problem was that sed(1) variants other than GNU sed require a backup suffix
to the -i option.
---
 pkgs/development/interpreters/perl/5.16/default.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/interpreters/perl/5.16/default.nix b/pkgs/development/interpreters/perl/5.16/default.nix
index 60bfacf419b2..4cf809c66edb 100644
--- a/pkgs/development/interpreters/perl/5.16/default.nix
+++ b/pkgs/development/interpreters/perl/5.16/default.nix
@@ -77,12 +77,12 @@ stdenv.mkDerivation rec {
     cpan/CPANPLUS/t/20_CPANPLUS-Dist-MM.t \
   '' + " ";
 
-  postPatch = optionalString (!stdenv.isDarwin) /* this failed on Darwin, no idea why */ ''
+  postPatch = ''
     for test in ${testsToSkip}; do
       echo "Removing test" $test
       rm "$test"
       pat=`echo "$test" | sed 's,/,\\\\/,g'` # just escape slashes
-      sed "/^$pat/d" -i MANIFEST
+      sed "/^$pat/d" -i.bak MANIFEST
     done
   '';