Build GHC with cabal-install and a Makefile #3
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Current status: it builds some ghc program in |
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Ah, I need to pass some environment variable to |
Makefile
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| @@ -0,0 +1,67 @@ | |||
| HADRIAN_SETTINGS_STAGE0 := $(shell ghc --info | runghc GenSettings.hs ghc-boot) | |||
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That's how the environment variable is called in ghc-boot's Setup.hs ¯_(ツ)_/¯
cabal.project-stage0
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| ./_build/stage0/src/ghc-bin/ | ||
| ./_build/stage0/src/libraries/ghc | ||
| ./_build/stage0/src/libraries/directory/ | ||
| ./_build/stage0/src/libraries/file-io/ | ||
| ./_build/stage0/src/libraries/filepath/ | ||
| ./_build/stage0/src/libraries/ghc-platform/ | ||
| ./_build/stage0/src/libraries/ghc-boot/ | ||
| ./_build/stage0/src/libraries/ghc-boot-th/ | ||
| ./_build/stage0/src/libraries/ghc-heap | ||
| ./_build/stage0/src/libraries/ghci | ||
| ./_build/stage0/src/libraries/os-string/ | ||
| ./_build/stage0/src/libraries/process/ | ||
| ./_build/stage0/src/libraries/semaphore-compat | ||
| ./_build/stage0/src/libraries/time | ||
| ./_build/stage0/src/libraries/unix/ | ||
| ./_build/stage0/src/libraries/Win32/ | ||
| ./_build/stage0/src/utils/ghc-pkg | ||
| ./_build/stage0/src/utils/hsc2hs | ||
| ./_build/stage0/src/utils/unlit | ||
| ./_build/stage0/src/utils/genprimopcode/ | ||
| ./_build/stage0/src/utils/deriveConstants/ | ||
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I don't want to modify the source tree directly, this way it's easier to nuke the _build directory and restart from a clean state.
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I think we don't need to copy all source files across. It is also annoying to do it propely with Make.
cabal will use a separate build directory anyway, only some generated cabal files will end up in the source tree.
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We need to perform some substitution/file generations more than once (for the different stages). I still think it's cleaner to avoid dirtying the source directory. I don't want to have to fix bugs because we've done something for stage0 and forgot to do it again differently for stage1.
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Now it seems like cabal doesn't like empty package databases: Edit: that was my mistake (a debug statement in ghc-pkg...). Now it works. |
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Effectively we want to completely disable the solver. We can add |
I've disabled it for stage1 where we start fresh to build boot libraries. |
hsyl20
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We copy settings from the boot compiler and it is likely to have TNTC enabled. So just enable it too.
| @@ -270,6 +511,7 @@ library | |||
| cpp-options: -DNOSMP | |||
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| include-dirs: include | |||
| include-dirs: . | |||
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Oof, so we include headers from . and include? I guess we want a
| include-dirs: . | |
| -- TODO: move headers into `include`. | |
| include-dirs: . |
Note that we need a patched cabal: https://github.com/hsyl20/cabal/tree/hsyl20/per-file-extra-source-options