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.


## 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`):

```json
      "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.