build/VisualStudio2013/tools/msbuild/Microsoft.Cpp.Win32.LLVM-vs2012_xp.props

<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">  
  <Import Project="$(VCTargetsPath)\Platforms\$(Platform)\PlatformToolsets\v110_xp\Microsoft.Cpp.$(Platform).v110_xp.props" Condition="Exists('$(VCTargetsPath)\Platforms\$(Platform)\PlatformToolsets\v110_xp\Microsoft.Cpp.$(Platform).v110_xp.props')"/>
  <Import Project="$(VCTargetsPath)\Platforms\$(Platform)\PlatformToolsets\v110_xp\Toolset.props" Condition="Exists('$(VCTargetsPath)\Platforms\$(Platform)\PlatformToolsets\v110_xp\Toolset.props')"/>

  <PropertyGroup>
    <LLVMInstallDir>$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\LLVM\LLVM)</LLVMInstallDir>
    <LLVMInstallDir Condition="'$(LLVMInstallDir)' == ''">$(Registry:HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\LLVM\LLVM)</LLVMInstallDir>
    <ExecutablePath>$(LLVMInstallDir)\msbuild-bin;$(ExecutablePath)</ExecutablePath>
    <LibraryPath>$(LLVMInstallDir)\lib\clang\3.4\lib\windows;$(LibraryPath)</LibraryPath>
  </PropertyGroup>

  <ItemDefinitionGroup>
    <ClCompile>
      <!-- Set the value of _MSC_VER to claim for compatibility -->
      <AdditionalOptions>-fmsc-version=1700 %(AdditionalOptions)</AdditionalOptions>
    </ClCompile>
  </ItemDefinitionGroup>
</Project>