From db21aee8699cdf9447a3da40b7d85c3db47755f3 Mon Sep 17 00:00:00 2001
From: "Chris Guzak (WINDOWS)" <chrisg@ntdev.microsoft.com>
Date: Wed, 26 Aug 2026 13:04:51 -0700
Subject: [PATCH] Silence experimental coroutine deprecation

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
---
 Directory.Build.Props | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Directory.Build.Props b/Directory.Build.Props
index 5972803c0..df3e8e588 100644
--- a/Directory.Build.Props
+++ b/Directory.Build.Props
@@ -59,7 +59,7 @@
       <LanguageStandard Condition="'$(CppWinRTLanguageStandard)'=='20'">stdcpp20</LanguageStandard>
       <PrecompiledHeader>Use</PrecompiledHeader>
       <PrecompiledHeaderFile>pch.h</PrecompiledHeaderFile>
-      <PreprocessorDefinitions>CPPWINRT_VERSION_STRING="$(CppWinRTBuildVersion)";%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>CPPWINRT_VERSION_STRING="$(CppWinRTBuildVersion)";_SILENCE_EXPERIMENTAL_COROUTINE_DEPRECATION_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessorDefinitions Condition="'$(TestsUseAnsiColor)'=='1'">CATCH_CONFIG_COLOUR_ANSI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <AdditionalOptions>/bigobj</AdditionalOptions>