anchor.diff:  :: Only CoreCLR requires an override--it should use the host
   :: downloaded as part of its NuGet package references, rather
   :: than the possibly-stale one from Tools.
  -if "%TARGET%"=="CoreCLR" (
  +if /i "%TARGET%"=="CoreCLR" (
       set RUNTIME_HOST="%~dp0bin\Bootstrap\CoreRun.exe"
   )
   
  -if "%TARGET%"=="CoreCLR" (
  +if /i "%TARGET%"=="CoreCLR" (
       set MSBUILD_CUSTOM_PATH="%~dp0bin\Bootstrap\MSBuild.exe"
   ) else (
       set MSBUILD_CUSTOM_PATH="%~dp0bin\Bootstrap\15.0\Bin\MSBuild.exe"
  
positive.code: )
  
  set BUILD_CONFIGURATION=
  if "%TARGET%"=="CoreCLR" (
      set BUILD_CONFIGURATION=Debug-NetCore
  ) else if "%TARGET%"=="Desktop" (
      set BUILD_CONFIGURATION=Debug
  ) else (
      echo Unsupported target detected: %TARGET%. Aborting.
  
negative.code: 
  :: By default match host to target
  if not defined HOST (
      if /i "%TARGET%"=="CoreCLR" (
          set HOST=CoreCLR
      ) else (
          set HOST=Desktop
  