From c13de40f04e4c426828ec6d009f7ce5cf8d396c2 Mon Sep 17 00:00:00 2001
From: Orivej Desh <orivej@gmx.fr>
Date: Fri, 1 Dec 2017 17:15:10 +0000
Subject: [PATCH] tzdata: export TZDIR for dependent packages

https://github.com/NixOS/nix/issues/1709
---
 pkgs/data/misc/tzdata/default.nix          | 2 ++
 pkgs/data/misc/tzdata/tzdata-setup-hook.sh | 6 ++++++
 2 files changed, 8 insertions(+)
 create mode 100644 pkgs/data/misc/tzdata/tzdata-setup-hook.sh

diff --git a/pkgs/data/misc/tzdata/default.nix b/pkgs/data/misc/tzdata/default.nix
index 1b4d967af553..ada2ed997dad 100644
--- a/pkgs/data/misc/tzdata/default.nix
+++ b/pkgs/data/misc/tzdata/default.nix
@@ -41,6 +41,8 @@ stdenv.mkDerivation rec {
       cp tzfile.h "$dev/include/tzfile.h"
     '';
 
+  setupHook = ./tzdata-setup-hook.sh;
+
   meta = {
     homepage = http://www.iana.org/time-zones;
     description = "Database of current and historical time zones";
diff --git a/pkgs/data/misc/tzdata/tzdata-setup-hook.sh b/pkgs/data/misc/tzdata/tzdata-setup-hook.sh
new file mode 100644
index 000000000000..9ae9b46d85c5
--- /dev/null
+++ b/pkgs/data/misc/tzdata/tzdata-setup-hook.sh
@@ -0,0 +1,6 @@
+tzdataHook() {
+    export TZDIR=@out@/share/zoneinfo
+}
+
+envHooks+=(tzdataHook)
+crossEnvHooks+=(tzdataHook)