From 544524895f3ad54632fb838702cd85fd38b97562 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sandro=20J=C3=A4ckel?= <sandro.jaeckel@gmail.com>
Date: Sun, 23 Oct 2022 01:46:30 +0200
Subject: [PATCH] changedetection-io: fix html extraction always returning no
 content

---
 pkgs/servers/web-apps/changedetection-io/default.nix | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/pkgs/servers/web-apps/changedetection-io/default.nix b/pkgs/servers/web-apps/changedetection-io/default.nix
index c86357637e48..3ccc41859853 100644
--- a/pkgs/servers/web-apps/changedetection-io/default.nix
+++ b/pkgs/servers/web-apps/changedetection-io/default.nix
@@ -1,5 +1,6 @@
 { lib
 , fetchFromGitHub
+, fetchurl
 , python3
 }:
 let
@@ -18,6 +19,17 @@ let
           "test_redirect"
         ];
       });
+      lxml = prev.lxml.override {
+        libxml2 = prev.libxml2.overrideAttrs (old: rec {
+          # etree.fromstring always returns None with 2.10.0
+          version = "2.9.14";
+
+          src = fetchurl {
+            url = "mirror://gnome/sources/libxml2/${lib.versions.majorMinor version}/libxml2-${version}.tar.xz";
+            sha256 = "sha256-YNdKJX0czsBHXnScui8hVZ5IE577pv8oIkNXx8eY3+4=";
+          };
+        });
+      };
       werkzeug = prev.werkzeug.overridePythonAttrs (old: rec {
         version = "2.0.3";
         src = old.src.override {