From a70cfd2f5e2efcc41dbab3af5da1cd7b71565542 Mon Sep 17 00:00:00 2001
From: Debian Rust Maintainers <pkg-rust-maintainers@alioth-lists.debian.net>
Date: Tue, 29 Mar 2022 12:23:46 +0100
Subject: [PATCH] d-bootstrap-rustflags

Gbp-Pq: Name d-bootstrap-rustflags.patch
---
 src/bootstrap/builder.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/src/bootstrap/builder.rs b/src/bootstrap/builder.rs
index edd5bf1b5..460f482d4 100644
--- a/src/bootstrap/builder.rs
+++ b/src/bootstrap/builder.rs
@@ -993,6 +993,18 @@ impl<'a> Builder<'a> {
             rustflags.arg("-Zsymbol-mangling-version=legacy");
         }
 
+        // Debian-specific stuff here
+        // set linker flags from LDFLAGS
+        if let Ok(ldflags) = env::var("LDFLAGS") {
+            for flag in ldflags.split_whitespace() {
+                if target.contains("windows") && flag.contains("relro") {
+                    // relro is ELF-specific
+                    continue;
+                }
+                rustflags.arg(&format!("-Clink-args={}", flag));
+            }
+        }
+
         // FIXME: It might be better to use the same value for both `RUSTFLAGS` and `RUSTDOCFLAGS`,
         // but this breaks CI. At the very least, stage0 `rustdoc` needs `--cfg bootstrap`. See
         // #71458.
-- 
2.30.2