From 59255ceac58f7211635bdbbd41e66fcd756a90c7 Mon Sep 17 00:00:00 2001
From: Thom Chiovoloni <thom@shift.click>
Date: Fri, 3 Nov 2023 15:17:02 -0700
Subject: [PATCH] Pass -Wno-unused-command-line-argument to clang in
 `is_flag_supported` (#886)

---
 src/lib.rs | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index ecc5d48f..77f1a1db 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -523,6 +523,11 @@ impl Build {
         if compiler.family.verbose_stderr() {
             compiler.remove_arg("-v".into());
         }
+        if compiler.family == ToolFamily::Clang {
+            // Avoid reporting that the arg is unsupported just because the
+            // compiler complains that it wasn't used.
+            compiler.push_cc_arg("-Wno-unused-command-line-argument".into());
+        }
 
         let mut cmd = compiler.to_command();
         let is_arm = target.contains("aarch64") || target.contains("arm");