nvda

07f7bf1c - No longer append clang directories to path in SCons environment when building liblouis and update readme about Visual Studio (#12728)

No longer append clang directories to path in SCons environment when building liblouis and update readme about Visual Studio (#12728) In the past, we had to explicitly dig up the dirs where clang was installed inside Visual Studio. It looks like since then, Microsoft added LLVM to the path of the Visual Studio tools command prompt, which constructor batch file is used by SCons. Description of how this pull request fixes the issue: No longer add Clang to the path. Note that we still check its installation. Changes for Developers Building NVDA now requires Visual Studio 2019 16.10.4 or later. To match the production build environment, update Visual Studio to keep in sync with the current version AppVeyor is using: https://www.appveyor.com/docs/windows-images-software/#visual-studio-2019