Add VCRuntime to Python 2

We need to copy the vcruntime dll as it is a dependency of python2.

Author: icanhasmath

PCbuild/pyproject.props

@@ -157,4 +157,24 @@ foreach (System.Diagnostics.Process p in System.Diagnostics.Process.GetProcesses
     <Error Text="Unable to locate signtool.exe. Set /p:SignToolPath and rebuild" Condition="'$(_SignCommand)' == ''" />
     <Exec Command='$(_SignCommand) "$(TargetPath)" || $(_SignCommand) "$(TargetPath)" || $(_SignCommand) "$(TargetPath)"' ContinueOnError="false" />
   </Target>
+
+  <Target Name="FindVCRuntime" Returns="VCRuntimeDLL">
+    <PropertyGroup Condition="$(PlatformToolset) != 'v140'">
+      <VCRedistDir>$(VCInstallDir)\Redist\MSVC\$(VCToolsRedistVersion)\</VCRedistDir>
+      <VCRedistDir Condition="$(Platform) == 'Win32'">$(VCRedistDir)x86\</VCRedistDir>
+      <VCRedistDir Condition="$(Platform) != 'Win32'">$(VCRedistDir)$(Platform)\</VCRedistDir>
+    </PropertyGroup>
+    <PropertyGroup Condition="$(PlatformToolset) == 'v140'">
+      <VCRedistDir>$(VCInstallDir)\redist\</VCRedistDir>
+      <VCRedistDir Condition="$(Platform) == 'Win32'">$(VCRedistDir)x86\</VCRedistDir>
+      <VCRedistDir Condition="$(Platform) != 'Win32'">$(VCRedistDir)$(Platform)\</VCRedistDir>
+    </PropertyGroup>
+
+    <ItemGroup Condition="$(VCInstallDir) != ''">
+      <VCRuntimeDLL Include="$(VCRedistDir)\Microsoft.VC*.CRT\vcruntime*.dll" />
+    </ItemGroup>
+
+    <Error Text="vcruntime14*.dll not found under $(VCInstallDir)" Condition="@(VCRuntimeDLL) == ''" />
+    <Message Text="VCRuntimeDLL: @(VCRuntimeDLL)" Importance="high" />
+  </Target>
 </Project>

PCbuild/pythoncore.vcxproj

@@ -406,4 +406,12 @@
   <Target Name="_WarnAboutToolset" BeforeTargets="PrepareForBuild" Condition="$(PlatformToolset) != 'v90'">
     <Warning Text="Toolset $(PlatformToolset) is not used for official builds. Your build may have errors or incompatibilities." />
   </Target>
+  <Target Name="_CopyVCRuntime" AfterTargets="Build" Inputs="@(VCRuntimeDLL)" Outputs="$(OutDir)%(Filename)%(Extension)" DependsOnTargets="FindVCRuntime">
+    <!-- bpo-38597: When we switch to another VCRuntime DLL, include vcruntime140.dll as well -->
+    <Warning Text="A copy of vcruntime140.dll is also required" Condition="!$(VCToolsRedistVersion.StartsWith(`14.`))" />
+    <Copy SourceFiles="%(VCRuntimeDLL.FullPath)" DestinationFolder="$(OutDir)" />
+  </Target>
+  <Target Name="_CleanVCRuntime" AfterTargets="Clean">
+    <Delete Files="@(VCRuntimeDLL->'$(OutDir)%(Filename)%(Extension)')" />
+  </Target>
 </Project>