From f9099184d7bde64023a60c1ce3404eefcb79ce19 Mon Sep 17 00:00:00 2001
From: Yuyi Wang <Strawberry_Str@hotmail.com>
Date: Fri, 1 Aug 2025 11:37:15 +0800
Subject: [PATCH] Add human readable name "Cygwin"

---
 src/librustdoc/clean/cfg.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/librustdoc/clean/cfg.rs b/src/librustdoc/clean/cfg.rs
index b6ce85510600e..e204e1788baa8 100644
--- a/src/librustdoc/clean/cfg.rs
+++ b/src/librustdoc/clean/cfg.rs
@@ -486,6 +486,7 @@ impl fmt::Display for Display<'_> {
                     (sym::debug_assertions, None) => "debug-assertions enabled",
                     (sym::target_os, Some(os)) => match os.as_str() {
                         "android" => "Android",
+                        "cygwin" => "Cygwin",
                         "dragonfly" => "DragonFly BSD",
                         "emscripten" => "Emscripten",
                         "freebsd" => "FreeBSD",