Issues with VS 16.10

[Neumann-A]

First:

"E:\Repos\AllProjects\build\LLVM_VS2019_x64_VSPROJ\Release\CMakeFiles\3.20.3\CompilerIdC\CompilerIdC.vcxproj" (Standardziel) (1) ->
(ClCompile Ziel) -> 
  clang-cl : error : no such file or directory: '/external:env:EXTERNAL_INCLUDE' [E:\Repos\AllProjects\build\LLVM_VS2019_x64_VSPROJ\Release\CMakeFiles\3.20.3\CompilerIdC\CompilerIdC.vcxproj]
  clang-cl : error : no such file or directory: '/external:W0' [E:\Repos\AllProjects\build\LLVM_VS2019_x64_VSPROJ\Release\CMakeFiles\3.20.3\CompilerIdC\CompilerIdC.vcxproj]

Second:
lld-link : error : could not open '/ILK:cmTC_099c7.dir\Debug\cmTC_099c7.ilk': invalid argument [E:\Repos\AllProjects\build\LLVM_VS2019_x64_VSPROJ\Debug\CMakeFiles\CMakeTmp\cmTC_099c7.vcxproj]

Third:
1>lld-link : error : could not open '/LTCGOUT:Release\Project6.iobj': invalid argument

Fix set:

    <_ClExternalIncludesSupported>false</_ClExternalIncludesSupported>
    <_LinkILKSupported>false</_LinkILKSupported>
    <_LinkLTCGOUTSupported>false</_LinkLTCGOUTSupported>

in LLVM.Cpp.Common.targets

[KomiMoe]

thanks for your help.

[mangh]

• Sorry to be answering so late and thank you very much for finding the solution! However I have decided to discontinue maintaining the extension in favour of Microsoft "C++ Clang tools for Windows" that can be installed with Visual Studio Installer and provides - more or less - the same functionality (which makes further development of the LLVM2019 extension rather pointless).
• If you would like to use the Microsoft tool with an external Clang/LLVM release (other than the one installed with the tool) you have to point out that release by setting LLVMInstallDir and LLVMToolsVersion environment variables e.g.:

set LLVMInstallDir=C:\Program Files\LLVM
set LLVMToolsVersion=12.0.0
rem LLVMToolsVersion = name of last subfolder in the path C:\Program Files\LLVM\lib\clang\12.0.0

• The last change that I published (yesterday) DISABLE installing LLVM2019.vsix on releases 16.10 and higher of VS2019 - these releases will refuse to install the extension.

[send010]

I want to compile the project with Microsoft "C++ Clang tools for Windows". but I don't know what to do.

[mangh]

https://docs.microsoft.com/en-us/cpp/build/clang-support-msbuild?view=msvc-160