From d277bafd099151f7809bb73820a32f9e803967b4 Mon Sep 17 00:00:00 2001
From: tangaac <tangyan01@loongson.cn>
Date: Wed, 26 Aug 2026 18:02:04 +0800
Subject: [PATCH] build.rs: replace manual Option::filter with .filter()

Newer clippy flags `and_then(|x| if cond { None } else { Some(x) })` as
`manual_filter`. Replace with `.filter(|x| !cond)` to satisfy
`-D warnings`.
---
 build.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/build.rs b/build.rs
index 5d7969e1e..5bcd7ec8d 100644
--- a/build.rs
+++ b/build.rs
@@ -231,7 +231,7 @@ fn can_compile<T: AsRef<str>>(test: T) -> bool {
     // [here]: https://doc.rust-lang.org/cargo/reference/environment-variables.html#environment-variables-cargo-reads
     let wrapper = var("RUSTC_WRAPPER")
         .ok()
-        .and_then(|w| if w.is_empty() { None } else { Some(w) });
+        .filter(|w| !w.is_empty());
 
     let mut cmd = if let Some(wrapper) = wrapper {
         let mut cmd = std::process::Command::new(wrapper);