From 8fb9db58a4fb8990e2ba8c27c2b8cd0b40783681 Mon Sep 17 00:00:00 2001
From: Philipp Oppermann <dev@phil-opp.com>
Date: Fri, 27 Feb 2026 08:41:37 +0100
Subject: [PATCH] Fix bootloader build by passing `-Zjson-target-spec`

Required on latest nightlies

This fix is mostly needed when the kernel uses the built-in x86_64-unknown-none target. Otherwise the user probably already has enabled the `json-target-spec` feature through a `.cargo/config.toml` file, which then also applies to the bootloader build.
---
 src/builder/bootloader.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/builder/bootloader.rs b/src/builder/bootloader.rs
index 5753fc1..2f956bc 100644
--- a/src/builder/bootloader.rs
+++ b/src/builder/bootloader.rs
@@ -124,6 +124,7 @@ impl BuildConfig {
         cmd.arg("--features")
             .arg(self.features.as_slice().join(" "));
         cmd.arg("--target").arg(&self.target);
+        cmd.arg("-Zjson-target-spec");
         cmd.arg("--release");
         cmd.env("KERNEL", &self.kernel_bin_path);
         cmd.env("KERNEL_MANIFEST", &self.kernel_manifest_path);