anchor.diff:      set SKIP_EXPENSIVE_TESTS=1
       set BUILD_PORTABLE=1
       set BUILD_VS=1
  -    set BUILD_FSHARP_DATA_TYPEPROVIDERS=1
       set TEST_COMPILERUNIT=1
       set TEST_NET40_COREUNIT=1
       set TEST_PORTABLE_COREUNIT=1
  
positive.code: echo BUILD_NET40=%BUILD_NET40%
  echo BUILD_PORTABLE=%BUILD_PORTABLE%
  echo BUILD_VS=%BUILD_VS%
  echo BUILD_FSHARP_DATA_TYPEPROVIDERS=%BUILD_FSHARP_DATA_TYPEPROVIDERS%
  echo BUILD_CONFIG=%BUILD_CONFIG%
  echo BUILD_CONFIG_LOWERCASE=%BUILD_CONFIG_LOWERCASE%
  echo.
  
negative.code: %_msbuildexe% %msbuildflags% src/fsharp-compiler-build.proj /p:Configuration=%BUILD_CONFIG%
  @if ERRORLEVEL 1 echo Error: compiler build failed && goto :failure
  
  if '%BUILD_PORTABLE%' == '1' (
  %_msbuildexe% %msbuildflags% src/fsharp-library-build.proj /p:TargetFramework=portable47 /p:Configuration=%BUILD_CONFIG%
  @if ERRORLEVEL 1 echo Error: library portable47 build failed && goto :failure
  