From e7ad59bd73078c2f4cdcfddadacb51c43338fe93 Mon Sep 17 00:00:00 2001
From: Max Bachmann <max.bachmann@iracing.com>
Date: Wed, 14 May 2025 13:42:33 +0200
Subject: [PATCH] gh-133568: Only set `HAVE_AF_HYPERV` on supported WinAPI
 partitions (GH-133569)

---
 .../next/Windows/2025-05-07-11-25-29.gh-issue-133568.oYV0d8.rst | 1 +
 Modules/socketmodule.h                                          | 2 +-
 2 files changed, 2 insertions(+), 1 deletion(-)
 create mode 100644 Misc/NEWS.d/next/Windows/2025-05-07-11-25-29.gh-issue-133568.oYV0d8.rst

diff --git a/Misc/NEWS.d/next/Windows/2025-05-07-11-25-29.gh-issue-133568.oYV0d8.rst b/Misc/NEWS.d/next/Windows/2025-05-07-11-25-29.gh-issue-133568.oYV0d8.rst
new file mode 100644
index 00000000000..1e2a5b582cb
--- /dev/null
+++ b/Misc/NEWS.d/next/Windows/2025-05-07-11-25-29.gh-issue-133568.oYV0d8.rst
@@ -0,0 +1 @@
+Fix compile error when using a WinAPI partition that doesn't support the RPC runtime library.
diff --git a/Modules/socketmodule.h b/Modules/socketmodule.h
index 63624d511c3..200b2b8c7d8 100644
--- a/Modules/socketmodule.h
+++ b/Modules/socketmodule.h
@@ -259,7 +259,7 @@ typedef int SOCKET_T;
 #endif
 
 // AF_HYPERV is only supported on Windows
-#if defined(AF_HYPERV) && defined(MS_WINDOWS)
+#if defined(AF_HYPERV) && (defined(MS_WINDOWS_APP) || defined(MS_WINDOWS_SYSTEM))
 #  define HAVE_AF_HYPERV
 #endif