From 55dc0d634c4d66611c5243900155a375cf15006d Mon Sep 17 00:00:00 2001
From: rnhmjoj <rnhmjoj@inventati.org>
Date: Sat, 11 Jul 2026 13:49:07 +0200
Subject: [PATCH] mkvtoolnix-cli: fix build

---
 pkgs/by-name/mk/mkvtoolnix/package.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/mk/mkvtoolnix/package.nix b/pkgs/by-name/mk/mkvtoolnix/package.nix
index 229479be51de..2419af49df28 100644
--- a/pkgs/by-name/mk/mkvtoolnix/package.nix
+++ b/pkgs/by-name/mk/mkvtoolnix/package.nix
@@ -98,10 +98,13 @@ stdenv.mkDerivation (finalAttrs: {
   ++ optionals withGUI [ cmark ]
   ++ optionals stdenv.hostPlatform.isLinux [ qt6.qtwayland ];
 
-  # autoupdate is not needed but it silences a ton of pointless warnings
   postPatch = ''
+    # autoupdate is not needed but it silences a ton of pointless warnings
     patchShebangs . > /dev/null
     autoupdate configure.ac ac/*.m4
+
+    # fix unit tests with GUI disabled
+    sed -i '5i$gtest_apps.delete("gui") if !$build_mkvtoolnix_gui' rake.d/gtest.rb
   '';
 
   configureFlags = [