From 2d587a560397d4e33019423249b1bb988d812de3 Mon Sep 17 00:00:00 2001
From: matthiasdotsh <git@matthias.sh>
Date: Wed, 17 Dec 2025 09:05:12 +0100
Subject: [PATCH] lgpio: Fix cross-compilation build

The upstream Makefile [1] supports the CROSS_PREFIX variable to specify
the cross-compiler toolchain prefix. Without this, the build fails
when cross-compiling (e.g., for aarch64-multiplatform) because it
tries to use the native 'gcc' instead of the target compiler.

This fix allows building lgpio for other architectures using
pkgsCross.

[1] https://github.com/joan2937/lg/blob/v0.2.2/Makefile#L4
---
 pkgs/by-name/lg/lgpio/package.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/pkgs/by-name/lg/lgpio/package.nix b/pkgs/by-name/lg/lgpio/package.nix
index 73d8c4853d1e..21051bcfa660 100644
--- a/pkgs/by-name/lg/lgpio/package.nix
+++ b/pkgs/by-name/lg/lgpio/package.nix
@@ -55,6 +55,7 @@ mkDerivation rec {
 
   makeFlags = [
     "prefix=$(out)"
+    "CROSS_PREFIX=${stdenv.cc.targetPrefix}"
   ];
 
   meta = {