From 1102018a0004a1541e587908b7c457e7f4888549 Mon Sep 17 00:00:00 2001
From: Tobias Geerinckx-Rice <tobias.geerinckx.rice@gmail.com>
Date: Mon, 7 Sep 2015 02:08:23 +0200
Subject: [PATCH] htop: touch all headers
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Fix the following build failure:

```
config.status: executing libtool commands
building
make flags: SHELL=/nix/store/548wfw1i43glkx8lkyjmbg59h6127qky-bash-4.3-p39/bin/bash
./scripts/MakeHeader.py ColumnsPanel.c
/usr/bin/env: python: No such file or directory
Makefile:2164: recipe for target 'ColumnsPanel.h' failed
make: *** [ColumnsPanel.h] Error 127
builder for ‘/nix/store/6rai1vs6jsw8y5z5jff98f0f8jzfa12n-htop-1.0.3-584-8f07868f.drv’ failed with exit code 2
```
---
 pkgs/os-specific/linux/htop/default.nix | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/pkgs/os-specific/linux/htop/default.nix b/pkgs/os-specific/linux/htop/default.nix
index 873795c9752..8f3250f85f7 100644
--- a/pkgs/os-specific/linux/htop/default.nix
+++ b/pkgs/os-specific/linux/htop/default.nix
@@ -13,6 +13,10 @@ stdenv.mkDerivation rec {
   buildInputs = [ ncurses ];
   nativeBuildInputs = [ autoreconfHook ];
 
+  postPatch = ''
+    touch *.h # unnecessary regeneration requires Python
+  '';
+
   meta = {
     description = "An interactive process viewer for Linux";
     homepage = "http://htop.sourceforge.net";