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- Hadrian can also run `boot` and `configure` for you, with the `-c` flag.
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- Build products are not in `inplace` anymore, but `_build` by default. Your stage 2 GHC would then be at `_build/stage1/bin/ghc` (because it's built by stage1).
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- The build root is configurable with `--build-root` or `-o`.
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- You can pick the build flavour with `--flavour=X` where X is `perf`, `prof`, etc.
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- GHCs built by Hadrian are now relocatable. This means you can move the `<build root>/stage1/{lib, bin}` directories around and GHC will still happily work, as long as both directories stay next to each other.
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## Your first build
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