From f3e2b0f5b6365d8cf0f72e254f85345d3a85274a Mon Sep 17 00:00:00 2001
From: Aristid Breitkreuz <aristidb@gmail.com>
Date: Tue, 24 Nov 2015 21:03:17 +0100
Subject: [PATCH] fix Date::Manip perl package on Linux

---
 pkgs/top-level/perl-packages.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/top-level/perl-packages.nix b/pkgs/top-level/perl-packages.nix
index c2e1c181e5ca..11d9e6e8c36b 100644
--- a/pkgs/top-level/perl-packages.nix
+++ b/pkgs/top-level/perl-packages.nix
@@ -2723,6 +2723,10 @@ let self = _self // overrides; _self = with self; {
       url = "mirror://cpan/authors/id/S/SB/SBECK/${name}.tar.gz";
       sha256 = "0afvr2q2hspd807d6wd7kmrr7ypxdlh8bcnqsqbfwcwd74qadg13";
     };
+    # for some reason, parsing /etc/localtime does not work anymore - make sure that the fallback "/bin/date +%Z" will work
+    patchPhase = ''
+      sed -i "s#/bin/date#${pkgs.coreutils}/bin/date#" lib/Date/Manip/TZ.pm
+    '';
     propagatedBuildInputs = [ TestInter ];
     meta = {
       description = "Date manipulation routines";