From 55b376a36d238c358888ddfe067e3d78f1a5a3ca Mon Sep 17 00:00:00 2001
From: Justin Smith <justsmth@amazon.com>
Date: Mon, 12 May 2025 15:29:48 -0400
Subject: [PATCH] Fix arch-specific env variable usage

---
 aws-lc-sys/builder/main.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/aws-lc-sys/builder/main.rs b/aws-lc-sys/builder/main.rs
index 93af0274b75e..39d6690f1ef3 100644
--- a/aws-lc-sys/builder/main.rs
+++ b/aws-lc-sys/builder/main.rs
@@ -161,7 +161,8 @@ fn optional_env_crate_target<N: AsRef<str>>(name: N) -> Option<String> {
 
 fn optional_env_target<N: AsRef<str>>(name: N) -> Option<String> {
     let name = name.as_ref();
-    let name_for_target = format!("{}_{}", &name, target());
+    let target_name = target().to_lowercase().replace('-', "_");
+    let name_for_target = format!("{}_{}", &name, target_name);
     optional_env(name_for_target).or(optional_env(name))
 }