From 085f98490e0aa168ae26b1d0c54facc8c8a85732 Mon Sep 17 00:00:00 2001
From: Graham Christensen <graham@grahamc.com>
Date: Sun, 26 Jun 2016 12:21:52 -0500
Subject: [PATCH] acpitool: port debian patches

Without these patches, specifically the
0001-Do-not-assume-fixed-line-lengths-for-proc-acpi-wakeu.patch (wakeu
patch typo from upstream,) acpitool will consume 100% CPU when reading
long lines (>40 characters) like:

    ADP1	  S4	*disabled  platform:ACPI0003:00
---
 pkgs/os-specific/linux/acpitool/default.nix | 39 +++++++++++++++++++--
 1 file changed, 36 insertions(+), 3 deletions(-)

diff --git a/pkgs/os-specific/linux/acpitool/default.nix b/pkgs/os-specific/linux/acpitool/default.nix
index 6fc3bbe7c08e..083ff3213fe0 100644
--- a/pkgs/os-specific/linux/acpitool/default.nix
+++ b/pkgs/os-specific/linux/acpitool/default.nix
@@ -1,13 +1,46 @@
-{stdenv, fetchurl}:
+{stdenv, fetchurl, fetchpatch}:
 
-stdenv.mkDerivation rec {
+let
+   acpitool-patch-051-4 = params: fetchpatch rec {
+     inherit (params) name sha256;
+     url = "https://anonscm.debian.org/cgit/pkg-acpi/acpitool.git/plain/debian/patches/${name}?h=debian/0.5.1-4&id=3fd9f396f12ec9c1cae3337a2a25026b7faad2ae";
+   };
+
+in stdenv.mkDerivation rec {
   name = "acpitool-0.5.1";
-  
+
   src = fetchurl {
     url = "mirror://sourceforge/acpitool/${name}.tar.bz2";
     sha256 = "004fb6cd43102918b6302cf537a2db7ceadda04aef2e0906ddf230f820dad34f";
   };
 
+  patches = [
+    (acpitool-patch-051-4 {
+      name = "ac_adapter.patch";
+      sha256 = "0rn14vfv9x5gmwyvi6bha5m0n0pm4wbpg6h8kagmy3i1f8lkcfi8";
+    })
+    (acpitool-patch-051-4 {
+      name = "battery.patch";
+      sha256 = "190msm5cgqgammxp1j4dycfz206mggajm5904r7ifngkcwizh9m7";
+    })
+    (acpitool-patch-051-4 {
+      name = "kernel3.patch";
+      sha256 = "1qb47iqnv09i7kgqkyk9prr0pvlx0yaip8idz6wc03wci4y4bffg";
+    })
+    (acpitool-patch-051-4 {
+      name = "wakeup.patch";
+      sha256 = "1mmzf8n4zsvc7ngn51map2v42axm9vaf8yknbd5amq148sjf027z";
+    })
+    (acpitool-patch-051-4 {
+      name = "0001-Do-not-assume-fixed-line-lengths-for-proc-acpi-wakeu.patch";
+      sha256 = "10wwh7l3jbmlpa80fzdr18nscahrg5krl18pqwy77f7683mg937m";
+    })
+    (acpitool-patch-051-4 {
+      name = "typos.patch";
+      sha256 = "1178fqpk6sbqp1cyb1zf9qv7ahpd3pidgpid3bbpms7gyhqvvdpa";
+    })
+  ];
+
   meta = {
     description = "A small, convenient command-line ACPI client with a lot of features";
     homepage = http://freeunix.dyndns.org:8000/site2/acpitool.shtml;