From f2491c647937fc0871a473c19e3d5cb5392cfca0 Mon Sep 17 00:00:00 2001
From: Steve Dower <steve.dower@python.org>
Date: Wed, 7 Jul 2021 19:35:51 +0100
Subject: bpo-44479: Simplified LICENSE.txt regeneration in Windows build
 (GH-27056)

---
 PCbuild/regen.targets | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/PCbuild/regen.targets b/PCbuild/regen.targets
index 7c956c4..a1de340 100644
--- a/PCbuild/regen.targets
+++ b/PCbuild/regen.targets
@@ -96,21 +96,21 @@
     <_LicenseSources Include="$(tcltkDir)tcllicense.terms;
                               $(tcltkDir)tklicense.terms;
                               $(tcltkDir)tixlicense.terms" Condition="$(IncludeTkinter)" />
-    <_LicenseOutputs Include="$(OutDir)LICENSE.txt" />
   </ItemGroup>
 
-  <Target Name="_RegenLicense" Inputs="@(_LicenseSources)" Outputs="@(_LicenseOutputs)">
-    <Message Text="Regenerate @(_LicenseOutputs->'%(Filename)%(Extension)', ' ')" Importance="high" />
+  <Target Name="_RegenLicense">
     <ItemGroup>
-      <_Text Include="@(_LicenseFiles)">
+      <_Text1 Include="@(_LicenseSources)">
         <Content Condition="Exists(%(FullPath))">$([System.IO.File]::ReadAllText(%(FullPath)))</Content>
-      </_Text>
+      </_Text1>
+      <_Text Include="@(_Text1->'%(Content)')" />
     </ItemGroup>
 
-    <WriteLinesToFile File="@(_LicenseOutputs)" Overwrite="true" Lines="@(_Text->'%(Content)')" />
+    <WriteLinesToFile File="$(OutDir)LICENSE.txt" Overwrite="true" Lines="@(_Text)" />
+    <Warning Text="License file %(_LicenseSources.FullPath) is missing"
+             Condition="!Exists(@(_LicenseSources))" />
+    <Message Text="Wrote $(OutDir)LICENSE.txt" Importance="high" />
   </Target>
 
-  <Target Name="PostBuildRegen" DependsOnTargets="_RegenLicense">
-    <Message Text="Other generated files are up to date" Importance="high" />
-  </Target>
+  <Target Name="PostBuildRegen" DependsOnTargets="_RegenLicense" />
 </Project>
-- 
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