From: Chris Eibl <138194463+chris-eibl@users.noreply.github.com>
Date: Mon, 9 Jun 2025 11:52:38 +0000 (+0200)
Subject: GH-135287: clang-cl PGO builds on Windows fail with `could not open '/GENPROFILE... 
X-Git-Tag: v3.15.0a1~1345
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=0045100ccbc3919e8990fa59bc413fe38d21b075;p=thirdparty%2FPython%2Fcpython.git

GH-135287: clang-cl PGO builds on Windows fail with `could not open '/GENPROFILE'` (GH-135289)
---

diff --git a/PCbuild/pyproject.props b/PCbuild/pyproject.props
index ce51e3422416..cf35e705f355 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>