From 2f8e9a85109cc5b35aaedc2e6ecce87fa1d0010e Mon Sep 17 00:00:00 2001
From: Stenzek <stenzek@gmail.com>
Date: Sat, 6 Jun 2026 16:51:34 +1000
Subject: [PATCH] MSBuild: Enable strict aliasing for clang

---
 dep/vsprops/Base.props | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dep/vsprops/Base.props b/dep/vsprops/Base.props
index 7ac089b8f..3410b1ae0 100644
--- a/dep/vsprops/Base.props
+++ b/dep/vsprops/Base.props
@@ -36,7 +36,8 @@
       <!-- Force ThinLTO for Release builds, MSVC doesn't seem to do it otherwise. -->
       <AdditionalOptions Condition="$(Configuration.Contains(Clang)) And $(Configuration.Contains(ReleaseLTCG))"> -flto=thin %(AdditionalOptions)</AdditionalOptions>
       <DisableSpecificWarnings Condition="!$(Configuration.Contains(Clang))">4324;%(DisableSpecificWarnings)</DisableSpecificWarnings>
-      <AdditionalOptions Condition="$(Configuration.Contains(Clang))">%(AdditionalOptions) -Wno-invalid-offsetof</AdditionalOptions>
+      <AdditionalOptions Condition="$(Configuration.Contains(Clang))">%(AdditionalOptions) -Wno-invalid-offsetof -Wstrict-aliasing</AdditionalOptions>
+      <AdditionalOptions Condition="$(Configuration.Contains(Clang)) And !$(Configuration.Contains(Debug))">%(AdditionalOptions) -fstrict-aliasing</AdditionalOptions>
       <ExceptionHandling>false</ExceptionHandling>
       <RuntimeTypeInfo>false</RuntimeTypeInfo>
       <AdditionalOptions Condition="$(Configuration.Contains(Clang))">/clang:-fno-rtti %(AdditionalOptions)</AdditionalOptions>