lean4-htt/doc/make/msvc.md

Compiling Lean with Visual Studio

WARNING: Compiling Lean with Visual Studio doesn't currently work. There's an ongoing effort to port Lean to Visual Studio. The instructions below are for VS 2017.

In the meantime you can use MSYS2 or WSL.

Installing dependencies

First, install vcpkg from https://github.com/Microsoft/vcpkg if you haven't done so already. Then, open a console in the directory you cloned vcpkg to, and type: vcpkg install mpir for the 32-bit library or vcpkg install mpir:x64-windows for the x64 one.

In Visual Studio, use the "open folder" feature and open the Lean directory. Go to the CMake->Change CMake Settings menu. File CMakeSettings.json opens. In each of the targets, add the following snippet (i.e., after every ctestCommandArgs):

    "variables": [
      {
        "name": "CMAKE_TOOLCHAIN_FILE",
        "value": "C:\\path\\to\\vcpkg\\scripts\\buildsystems\\vcpkg.cmake"
      }
    ]

Enable Intellisense

In Visual Studio, press Ctrl+Q and type CppProperties.json and press Enter. Ensure includePath variables include "${workspaceRoot}\\src".

Build Lean

Press F7.