From 22b74b95bcaf58836957f2ecb8bd9baafacc7da1 Mon Sep 17 00:00:00 2001
From: Nick Cao <nickcao@nichi.co>
Date: Wed, 18 Jun 2025 19:12:24 -0400
Subject: [PATCH] matrix-synapse: apply patch fixing build with libxml >= 2.14

---
 pkgs/by-name/ma/matrix-synapse-unwrapped/package.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/pkgs/by-name/ma/matrix-synapse-unwrapped/package.nix b/pkgs/by-name/ma/matrix-synapse-unwrapped/package.nix
index 69acde9bad8c..60c8bd9400ab 100644
--- a/pkgs/by-name/ma/matrix-synapse-unwrapped/package.nix
+++ b/pkgs/by-name/ma/matrix-synapse-unwrapped/package.nix
@@ -2,6 +2,7 @@
   lib,
   stdenv,
   fetchFromGitHub,
+  fetchpatch,
   python3,
   openssl,
   libiconv,
@@ -27,6 +28,15 @@ python3.pkgs.buildPythonApplication rec {
     hash = "sha256-nXDVkuV5GCk0Lp4LfyiModKdO30PJ40B5mXdm5tMHQo=";
   };
 
+  patches = [
+    # Skip broken HTML preview test case with libxml >= 2.14
+    # https://github.com/element-hq/synapse/pull/18413
+    (fetchpatch {
+      url = "https://github.com/element-hq/synapse/commit/8aad32965888476b4660bf8228d2d2aa9ccc848b.patch";
+      hash = "sha256-EUEbF442nOAybMI8EL6Ee0ib3JqSlQQ04f5Az3quKko=";
+    })
+  ];
+
   cargoDeps = rustPlatform.fetchCargoVendor {
     inherit pname version src;
     hash = "sha256-9VJnn8aPkShqK2wYGFr+S5koIjma7VOr+LkLXwStL1E=";