Unverified Commit c1706f68 authored by Andrey Mokhov's avatar Andrey Mokhov Committed by GitHub

Add troubleshooting section

See #308
parent da397291
......@@ -143,6 +143,28 @@ replace the `validate` script (see [#187][validation-issue]).
* `build selftest` runs tests of the build system. Current test coverage is close to
zero (see [#197][test-issue]).
Here are a few simple suggestions that might help you fix the build:
* The Hadrian submodule in GHC is occasionally behind the master branch of this repository,
which contains most recent bug fixes. To switch to the most recent version of Hadrian,
run `git pull https://github.com/snowleopard/hadrian.git`. Beware: the most recent version
contains the most recent bugs too! If this works, please raise an issue and we will try to
push the changes to the GHC submodule as soon as possible.
* Hadrian is occasionally broken by changes in GHC. If this happens, you might want to switch
to an earlier GHC commit.
* If Hadrian fails with the message `Configuration file hadrian/cfg/system.config is missing`,
you have probably forgotten to pass the `--configure` flag during the first build.
* If you need help in debugging Hadrian, read the [wiki](https://github.com/snowleopard/hadrian/wiki)
and Shake's [debugging tutorial](https://shakebuild.com/debugging).
If everything fails, don't hesitate to [raise an issue](https://github.com/snowleopard/hadrian/issues/new).
Current limitations
The new build system still lacks many important features:
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