From 5b1f2ce84a8d3bc846be011ebb89d2cdbf858948 Mon Sep 17 00:00:00 2001
From: Ihar Hrachyshka <ihar.hrachyshka@gmail.com>
Date: Sat, 4 Jul 2026 01:17:22 -0400
Subject: [PATCH] xclock: add version check

---
 pkgs/by-name/xc/xclock/package.nix | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/pkgs/by-name/xc/xclock/package.nix b/pkgs/by-name/xc/xclock/package.nix
index cf6ec840de32..a6f15830cdb6 100644
--- a/pkgs/by-name/xc/xclock/package.nix
+++ b/pkgs/by-name/xc/xclock/package.nix
@@ -5,6 +5,7 @@
   meson,
   ninja,
   pkg-config,
+  versionCheckHook,
   wrapWithXFileSearchPathHook,
   libx11,
   libxaw,
@@ -53,6 +54,10 @@ stdenv.mkDerivation (finalAttrs: {
     (lib.mesonOption "appdefaultdir" "${placeholder "out"}/share/X11/app-defaults")
   ];
 
+  nativeInstallCheckInputs = [ versionCheckHook ];
+  versionCheckProgramArg = "-version";
+  doInstallCheck = true;
+
   passthru.updateScript = nix-update-script { extraArgs = [ "--version-regex=xclock-(.*)" ]; };
 
   meta = {