From cf8640a35b65ff7da10778fc7835cc5817e8ea5c Mon Sep 17 00:00:00 2001
From: eryngion <eryngion@protonmail.com>
Date: Wed, 4 Feb 2026 22:08:25 +0000
Subject: [PATCH] libv4l: don't pull qtbase into cross-compiled builds

---
 pkgs/by-name/v4/v4l-utils/package.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pkgs/by-name/v4/v4l-utils/package.nix b/pkgs/by-name/v4/v4l-utils/package.nix
index d565f8de3fc9..06c7db58d0f5 100644
--- a/pkgs/by-name/v4/v4l-utils/package.nix
+++ b/pkgs/by-name/v4/v4l-utils/package.nix
@@ -30,7 +30,7 @@
 
 let
   withQt = withUtils && withGUI;
-
+  isCrossBuild = !(lib.systems.equals stdenv.buildPlatform stdenv.hostPlatform);
 in
 # we need to use stdenv.mkDerivation in order not to pollute the libv4l’s closure with Qt
 stdenv.mkDerivation (finalAttrs: {
@@ -112,7 +112,7 @@ stdenv.mkDerivation (finalAttrs: {
 
   # Meson unable to find moc/uic/rcc in case of cross-compilation
   # https://github.com/mesonbuild/meson/issues/13018
-  preConfigure = lib.optionalString (stdenv.hostPlatform != stdenv.buildPlatform) ''
+  preConfigure = lib.optionalString (isCrossBuild && withQt) ''
     export PATH=${buildPackages.qt6Packages.qtbase}/libexec:$PATH
   '';