From 094e4ae432f8ff38c091c6282635c21bff04f90b Mon Sep 17 00:00:00 2001
From: Chris Eibl <138194463+chris-eibl@users.noreply.github.com>
Date: Mon, 9 Jun 2025 13:52:38 +0200
Subject: [PATCH] GH-135287: clang-cl PGO builds on Windows fail with `could
 not open '/GENPROFILE'` (GH-135289) (cherry picked from commit
 0045100ccbc3919e8990fa59bc413fe38d21b075)

Co-authored-by: Chris Eibl <138194463+chris-eibl@users.noreply.github.com>
---
 PCbuild/pyproject.props | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/PCbuild/pyproject.props b/PCbuild/pyproject.props
index ce51e342241686..cf35e705f355a7 100644
--- a/PCbuild/pyproject.props
+++ b/PCbuild/pyproject.props
@@ -100,8 +100,8 @@
       <AdditionalDependencies>advapi32.lib;shell32.lib;ole32.lib;oleaut32.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalOptions Condition="$(Configuration) != 'Debug'">/OPT:REF,NOICF %(AdditionalOptions)</AdditionalOptions>
       <AdditionalOptions Condition="$(MSVCHasBrokenARM64Clamping) == 'true' and $(Platform) == 'ARM64'">-d2:-pattern-opt-disable:-932189325 %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalOptions Condition="$(SupportPGO) and $(Configuration) == 'PGInstrument'">/GENPROFILE %(AdditionalOptions)</AdditionalOptions>
-      <AdditionalOptions Condition="$(SupportPGO) and $(Configuration) == 'PGUpdate'">/USEPROFILE %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalOptions Condition="$(SupportPGO) and $(Configuration) == 'PGInstrument' and $(PlatformToolset) != 'ClangCL'">/GENPROFILE %(AdditionalOptions)</AdditionalOptions>
+      <AdditionalOptions Condition="$(SupportPGO) and $(Configuration) == 'PGUpdate' and $(PlatformToolset) != 'ClangCL'">/USEPROFILE %(AdditionalOptions)</AdditionalOptions>
     </Link>
     <Lib>
       <LinkTimeCodeGeneration>false</LinkTimeCodeGeneration>