How do I build using Visual Studio 2026?

[AnsisMalins]

With the release of Visual Studio 2026, 2022 is no longer available to install. But its build tools can be installed as a component of 2026. Here's how far I got:

1. Install MSVC v143 - VS 2022 C++ x64/x86 build tools (v14.44) and the same for ARM64.
2. Before running V8Update.cmd, do set vs2022_install=C:\Program Files\Microsoft Visual Studio\18\Community
3. Modify V8Update.cmd as described in the attached patch file vs2026hax.patch. In particular, make the V8 build script use 2022 build tools instead of newest.
4. Run V8Update.cmd
5. Open ClearScript.sln, and this is where I get stuck. Visual Studio believes ClearScriptV8.win-arm64 is targeting MSVC v145, and x64 and x86 projects are targeting MSVC v100 (what?). Okay, let's retarget them to v143. Except the option is not there. Why?

[ClearScriptLib]

Hi @AnsisMalins,

To make the native projects build in Visual Studio 2026, we made the following changes in the .vcxproj files:

1. In the property group labeled "Globals", add <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>.
2. In the debug and release property groups, add <PlatformToolset>ClangCL</PlatformToolset>.

Please let us know if that works for you.

Thanks!

[AnsisMalins]

x64 succeeds, arm64 fails with

1>lld-link : error : could not open 'libcmt.lib': no such file or directory
1>lld-link : error : could not open 'oldnames.lib': no such file or directory
1>lld-link : error : could not open 'libcpmt.lib': no such file or directory

[ClearScriptLib]

You may need to add the "ARM64 build tools" component in Visual Studio Installer.

[AnsisMalins]

I already have that component installed and I have these files in C:\Program Files\Microsoft Visual Studio\18\Community\VC\Tools\MSVC\14.44.35207\lib\arm64

[AnsisMalins]

I'm guessing some build script is stubbornly picking the 14.50 MSVC for which I did not install the ARM64 tools.

[AnsisMalins]

Going into the project settings of the C++ projects and setting build tools from latest to 14.44 fixes it. Thank you for all the help.