From 34175e7d69d204f5ff8aeb16bf3996fef2945e53 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Domen=20Ko=C5=BEar?= <domen@dev.si>
Date: Wed, 31 Aug 2016 11:56:24 +0200
Subject: [PATCH] sct: backport #17163

---
 pkgs/tools/X11/sct/default.nix | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/pkgs/tools/X11/sct/default.nix b/pkgs/tools/X11/sct/default.nix
index 4bf62e53f55b..90c124cef2cb 100644
--- a/pkgs/tools/X11/sct/default.nix
+++ b/pkgs/tools/X11/sct/default.nix
@@ -4,7 +4,14 @@ stdenv.mkDerivation rec {
   buildInputs = [libX11 libXrandr];
   src = fetchurl {
     url = http://www.tedunangst.com/flak/files/sct.c;
-    sha256 = "1bivy0sl5v1jsq4jbq6p9hplz6cvw4nx9rc96p2kxsg506rqllc5";
+    sha256 = "01f3ndx3s6d2qh2xmbpmhd4962dyh8yp95l87xwrs4plqdz6knhd";
+
+     # Discussion regarding the checksum and the source code can be found in issue #17163
+     # The code seems unmaintained, yet an unknown (probably small change) in the code caused
+     # failed builds as the checksum had changed.
+     # The checksum is updated for now, however, this is unpractical and potentially unsafe
+     # so any future changes might warrant a fork of the (feature complete) project.
+     # The code is under public domain.
   };
   phases = ["patchPhase" "buildPhase" "installPhase"];
   patchPhase = ''