how to avoid mason to install clangd

[oeyoews]

If the system already has clangd installed, how to avoid mason to install it again (use automatic install with mason-lspconfig)

[williamboman]

You can exclude servers to automatically install:

    -- Whether servers that are set up (via lspconfig) should be automatically installed if they're not already installed.
    -- This setting has no relation with the `ensure_installed` setting.
    -- Can either be:
    --   - false: Servers are not automatically installed.
    --   - true: All servers set up via lspconfig are automatically installed.
    --   - { exclude: string[] }: All servers set up via lspconfig, except the ones provided in the list, are automatically installed.
    --       Example: automatic_installation = { exclude = { "rust_analyzer", "solargraph" } }
    automatic_installation = { exclude = { "clangd" } }