From c01aa2b1bba951593c091ec892f1fea4aaee1efc Mon Sep 17 00:00:00 2001
From: Aaron Jheng <wentworth@outlook.com>
Date: Thu, 28 May 2026 09:01:56 +0800
Subject: [PATCH] =?UTF-8?q?clash-rs:=20fix=20build=20with=20Rust=20?=
 =?UTF-8?q?=E2=89=A51.95?=
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(cherry picked from commit 90f40502b1824010eedfcc52565b2d1b35f66719)
---
 pkgs/by-name/cl/clash-rs/package.nix | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/pkgs/by-name/cl/clash-rs/package.nix b/pkgs/by-name/cl/clash-rs/package.nix
index de5edae3fcab..9b5401e6050b 100644
--- a/pkgs/by-name/cl/clash-rs/package.nix
+++ b/pkgs/by-name/cl/clash-rs/package.nix
@@ -33,8 +33,11 @@ rustPlatform.buildRustPackage (finalAttrs: {
   ];
 
   env = {
-    # requires features: sync_unsafe_cell, unbounded_shifts, let_chains, ip
+    # requires nightly features: sync_unsafe_cell, unbounded_shifts, let_chains, ip
     RUSTC_BOOTSTRAP = 1;
+    # if_let_guard is stable since Rust 1.95.0, but some deps still carry
+    # the stale #![feature(if_let_guard)] attribute.
+    RUSTFLAGS = "-A stable-features";
   };
 
   buildFeatures = [ "plus" ];