From f0bd45133a4969b715a8069cf17e7002f00376cb Mon Sep 17 00:00:00 2001
From: "Can H. Tartanoglu" <gpg@rotas.mozmail.com>
Date: Sat, 28 Feb 2026 08:45:16 +0100
Subject: [PATCH] feat: enable CONFIG_RUST=y in common settings

Upstream CachyOS (linux-cachyos/config) already ships CONFIG_RUST=y,
so this is also a bug fix, the nix packages should mirror upstream
but were missing this option.

Without CONFIG_RUST=y, the Rust sysroot (libcore, liballoc,
libkernel), target.json, and build infrastructure are never generated
during `make modules_prepare`, making out-of-tree Rust kernel module
compilation impossible despite `withRust = true` and the toolchain
being available in moduleBuildDependencies.

Closes #37
---
 kernel-cachyos/cachySettings.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel-cachyos/cachySettings.nix b/kernel-cachyos/cachySettings.nix
index f677a70..90b94db 100644
--- a/kernel-cachyos/cachySettings.nix
+++ b/kernel-cachyos/cachySettings.nix
@@ -4,6 +4,7 @@ with lib.kernel;
 {
   common = {
     CACHY = yes;
+    RUST = yes;
 
     # https://wiki.cachyos.org/configuration/general_system_tweaks/#adios-io-scheduler
     MQ_IOSCHED_ADIOS = yes;