From 87ef971478ec8814370cc59f75301e7dc38869cd Mon Sep 17 00:00:00 2001
From: Symphorien Gibol <symphorien+git@xlumurb.eu>
Date: Sun, 25 Dec 2016 20:35:51 +0100
Subject: [PATCH] tk: add private headers to /include

those are necessary to build some extensions like tix
---
 pkgs/development/libraries/tk/generic.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/development/libraries/tk/generic.nix b/pkgs/development/libraries/tk/generic.nix
index 87a2edee3ca..2258f28b9c4 100644
--- a/pkgs/development/libraries/tk/generic.nix
+++ b/pkgs/development/libraries/tk/generic.nix
@@ -16,6 +16,7 @@ stdenv.mkDerivation {
 
   postInstall = ''
     ln -s $out/bin/wish* $out/bin/wish
+    cp ../{unix,generic}/*.h $out/include
   '';
 
   configureFlags = [