From ce6ac28a1f8ddd2b03e92e9d5aa449f86e563704 Mon Sep 17 00:00:00 2001
From: Saleem Abdulrasool <abdulras@thebrowser.company>
Date: Thu, 7 Aug 2025 10:02:34 -0700
Subject: [PATCH] build.ps1: enable the C++ interop on Windows

With the last changes to the C++ interop support in the new runtimes
build, the default on Windows matches what it is on Apple platforms.
Explicitly opt into the C++ overlay build on Windows.
---
 utils/build.ps1 | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/utils/build.ps1 b/utils/build.ps1
index fd2db86597ccd..01c910b5fc7c3 100644
--- a/utils/build.ps1
+++ b/utils/build.ps1
@@ -2577,6 +2577,8 @@ function Build-ExperimentalRuntime([Hashtable] $Platform, [switch] $Static = $fa
         CMAKE_STATIC_LIBRARY_PREFIX_Swift = "lib";
 
         SwiftCore_DIR = "${RuntimeBinaryCache}\cmake\SwiftCore";
+
+        SwiftOverlay_ENABLE_CXX_INTEROP = "YES";
       }
 
     Build-CMakeProject `