From 5ac495e547e32ba54841438bcf0ecc00d2432226 Mon Sep 17 00:00:00 2001
From: PanQL <panqinglin00@163.com>
Date: Tue, 1 Mar 2022 17:26:19 +0800
Subject: [PATCH 1/2] use platform.system to check if it is on windows

---
 pyo3-build-config/src/impl_.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyo3-build-config/src/impl_.rs b/pyo3-build-config/src/impl_.rs
index b026e76adee..af6bf126dc4 100644
--- a/pyo3-build-config/src/impl_.rs
+++ b/pyo3-build-config/src/impl_.rs
@@ -188,7 +188,7 @@ def print_if_set(varname, value):
         print(varname, value)
 
 # Windows always uses shared linking
-WINDOWS = hasattr(platform, "win32_ver")
+WINDOWS = platform.system() == "Windows"
 
 # macOS framework packages use shared linking
 FRAMEWORK = bool(get_config_var("PYTHONFRAMEWORK"))

From 84cb8cdb6edf07ea14f502e99cc1163c6957ad29 Mon Sep 17 00:00:00 2001
From: David Hewitt <1939362+davidhewitt@users.noreply.github.com>
Date: Thu, 3 Mar 2022 07:34:01 +0000
Subject: [PATCH 2/2] add changelog for 2198

---
 CHANGELOG.md | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index fe15defeefd..a2e9d7ab9ef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,12 @@ PyO3 versions, please see the [migration guide](https://pyo3.rs/latest/migration
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [Unreleased]
+
+### Fixed
+
+- Fix incorrect platform detection for Windows in `pyo3-build-config`. [#2198](https://github.com/PyO3/pyo3/pull/2198)
+
 ## [0.16.0] - 2022-02-27
 
 ### Packaging