Environment to reproduce vscode cmake-tools issue #1188

See microsoft/vscode-cmake-tools#1188

Step1: Build the container

The script uses podman, but you can switch to docker if need be by modifying the script source code and replacing the podman call with a docker call

./container/build-image.sh

That container image is based off:

• a simple debian 10 slim image
• where an upstream cmake 3.20.3 is compiled/installed from source
• the arm64 foreign arch is added and a clang c++ simple dev environment is installed

Step2: Running the container

./container/test-container.sh project

Step3: Use the project within the container in vscode

1. Spawn vscode
2. Use remote-container to connect to the running d10-clang-aarch64-linux-gnu:1.0 container
3. Copy the VSIX from microsoft/vscode-cmake-tools#1188 (comment) in the host ./project directory
4. Ctrl+Shift+P Extensions Install from VSIX ... and install the copied VSIX iwithin the container
5. Install any necessary plugin within the container: C/C++, CMake
6. Select the clang-aarch64 build kit
7. Ctrl+Shift+P Cmake: Configure

Then the bug occurs, despite the toolchain file setting up a clangaarch64 build of the hello world project, it setups intellisense for clang-x64.