From c0156f1b2c42baa7a19308f940dddab0f7d384ac Mon Sep 17 00:00:00 2001
From: yukang <moorekang@gmail.com>
Date: Sat, 22 Jul 2023 15:29:42 +0800
Subject: [PATCH] Fix rustc-args passing issue in bootstrap

---
 src/bootstrap/builder.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
index 32eb4e68b08db..1707dafb11aa8 100644
--- a/src/bootstrap/builder.rs
+++ b/src/bootstrap/builder.rs
@@ -2043,6 +2043,13 @@ impl<'a> Builder<'a> {
             rustflags.arg("-Zinline-mir");
         }
 
+        // set rustc args passed from command line
+        let rustc_args =
+            self.config.cmd.rustc_args().iter().map(|s| s.to_string()).collect::<Vec<_>>();
+        if !rustc_args.is_empty() {
+            cargo.env("RUSTFLAGS", &rustc_args.join(" "));
+        }
+
         Cargo { command: cargo, rustflags, rustdocflags, allow_features }
     }