From 942855c8bd01dd0c571eb7b10859d9225445502a Mon Sep 17 00:00:00 2001
From: Shea Levy <shea@shealevy.com>
Date: Wed, 28 Feb 2018 14:50:17 -0500
Subject: [PATCH] tzdata: Fix cross-compilation

---
 pkgs/data/misc/tzdata/default.nix | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/pkgs/data/misc/tzdata/default.nix b/pkgs/data/misc/tzdata/default.nix
index ada2ed997da..6c8fd6229a3 100644
--- a/pkgs/data/misc/tzdata/default.nix
+++ b/pkgs/data/misc/tzdata/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, buildPackages }:
 
 stdenv.mkDerivation rec {
   name = "tzdata-${version}";
@@ -28,8 +28,23 @@ stdenv.mkDerivation rec {
     "MANDIR=$(man)/share/man"
     "AWK=awk"
     "CFLAGS=-DHAVE_LINK=0"
+    "cc=${stdenv.cc.targetPrefix}cc"
+    "AR=${stdenv.cc.targetPrefix}ar"
   ];
 
+  depsBuildBuild = [ buildPackages.stdenv.cc ];
+
+  installFlags = [ "ZIC=./zic-native" ];
+
+  preInstall = ''
+     mv zic.o zic.o.orig
+     mv zic zic.orig
+     make $makeFlags cc=cc AR=ar zic
+     mv zic zic-native
+     mv zic.o.orig zic.o
+     mv zic.orig zic
+  '';
+
   postInstall =
     ''
       rm $out/share/zoneinfo-posix