From 61c3458105ebf1cd119059aa0a97b816831841b4 Mon Sep 17 00:00:00 2001
From: bjorn3 <17426603+bjorn3@users.noreply.github.com>
Date: Sat, 8 Nov 2025 15:04:45 +0000
Subject: [PATCH] Add missing --check-cfg

---
 compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs b/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs
index 72140c651a9a..70504ee8007d 100644
--- a/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs
+++ b/compiler/rustc_codegen_cranelift/build_system/build_sysroot.rs
@@ -52,7 +52,8 @@ pub(crate) fn build_sysroot(
             .arg(dirs.source_dir.join("scripts").join(format!("{wrapper}.rs")))
             .arg("-o")
             .arg(&wrapper_path)
-            .arg("-Cstrip=debuginfo");
+            .arg("-Cstrip=debuginfo")
+            .arg("--check-cfg=cfg(support_panic_unwind)");
         if panic_unwind_support {
             build_cargo_wrapper_cmd.arg("--cfg").arg("support_panic_unwind");
         }