From 3edec5d142365f2340865b4f12652e6aa627818a Mon Sep 17 00:00:00 2001
From: Steve Dower <steve.dower@python.org>
Date: Thu, 29 Jul 2021 20:53:29 +0100
Subject: bpo-44479: Do not regenerate files during a PGO build as it will
 invalidate the profile. (GH-27460)

---
 PCbuild/regen.targets | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/PCbuild/regen.targets b/PCbuild/regen.targets
index 38f82d1..27fdd6e 100644
--- a/PCbuild/regen.targets
+++ b/PCbuild/regen.targets
@@ -78,7 +78,9 @@
           WorkingDirectory="$(PySourcePath)" />
   </Target>
 
-  <Target Name="Regen" DependsOnTargets="_TouchRegenSources;_RegenPegen;_RegenAST_H;_RegenOpcodes;_RegenTokens;_RegenKeywords">
+  <Target Name="Regen"
+          Condition="$(Configuration) != 'PGUpdate'"
+          DependsOnTargets="_TouchRegenSources;_RegenPegen;_RegenAST_H;_RegenOpcodes;_RegenTokens;_RegenKeywords">
     <Message Text="Generated sources are up to date" Importance="high" />
   </Target>
 
@@ -119,5 +121,7 @@
     <Message Text="Wrote $(OutDir)LICENSE.txt" Importance="high" />
   </Target>
 
-  <Target Name="PostBuildRegen" DependsOnTargets="_RegenTestFrozenmain;_RegenLicense" />
+  <Target Name="PostBuildRegen"
+          Condition="$(Configuration) != 'PGInstrument' and $(Configuration) != 'PGUpdate'"
+          DependsOnTargets="_RegenTestFrozenmain;_RegenLicense" />
 </Project>
-- 
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