Emulator

I can't reproduce what you are seeing exactly.

From your build.log, it seems the build steps were actually:

set VSCMD_SKIP_SENDTELEMETRY=1 & "C:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\Common7\Tools\VsDevCmd.bat" -host_arch=amd64 -arch=amd64
set _CL_=/D_HAS_DEPRECATED_RESULT_OF=1 /D_SILENCE_CXX17_RESULT_OF_DEPRECATION_WARNING %_CL_%
cd F:\gitP\dolphin-emu\dolphin\Source
set _CL_=/wd5054 %_CL_%
msbuild /m /p:Platform=x64 /p:Configuration=Release /p:WindowsTargetPlatformVersion=10.0.19041.0 dolphin-emu.sln /t:Dolphin 2>&1

Please try the following:

1. pull/checkout latest dolphin git commit from master branch and update submodules.

cd F:\gitP\dolphin-emu\dolphin\Source
set VSCMD_SKIP_SENDTELEMETRY=1 & "c:\Program Files (x86)\Microsoft Visual Studio\2019\Enterprise\VC\Auxiliary\Build\vcvarsall.bat" x64
msbuild /m /p:Platform=x64 /p:Configuration=Release /p:WindowsTargetPlatformVersion=10.0.19041.0 dolphin-emu.sln /t:Dolphin

(i.e. use vcvarsall)
Please remove the macro overrides from your dolphin build scripts. Those type of issues should be fixed in the main repository (and indeed, they have been for some time).

If the build error you're seeing just started soon before you filed the issue, I wonder if it might be this commit to blame: https://github.com/dolphin-emu/dolphin/pull/9777/commits/d19d2ce2bda16bfca07ace3a3f5b449115ee8fec ? If you still see these build errors, could you try reverting that commit? If that is the problem, any chance you know why your environment is different and/or how to use ExternalIncludePath properly? As you can see, we rely on msbuild setting EXTERNAL_INCLUDE environment variable, which seems to work for everyone else...

Thanks for the update, verify that Dolphin is clean after removing the macro overrides from the build scripts. This is awesome! Please close this ticket.