From 7662d4c4d761aeaa47e37a74cd9133adc9b8ae59 Mon Sep 17 00:00:00 2001
From: Samuel Moelius <samuel.moelius@trailofbits.com>
Date: Wed, 21 Feb 2024 23:52:06 +0000
Subject: [PATCH] Extend rather than overwrite `RUSTFLAGS` when building
 drivers

---
 dylint/src/driver_builder.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dylint/src/driver_builder.rs b/dylint/src/driver_builder.rs
index 7f1231128..473f20a44 100644
--- a/dylint/src/driver_builder.rs
+++ b/dylint/src/driver_builder.rs
@@ -156,7 +156,8 @@ fn build(opts: &opts::Dylint, toolchain: &str, driver: &Path) -> Result<()> {
     // behavior causes the driver to have absolute rpaths.
     // let rustflags = "-C rpath=yes";
     let rustflags = format!(
-        "-C link-args=-Wl,-rpath,{}/lib",
+        "{} -C link-args=-Wl,-rpath,{}/lib ",
+        env::var("RUSTFLAGS").unwrap_or_default(),
         toolchain_path.to_string_lossy()
     );