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doc: clarify how to trigger automatic stage0 updates (#11413)

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This PR clarifies the bootstrap documentation to explain that to trigger
the automatic stage0 update mechanism, you should modify
`stage0/src/stdlib_flags.h` (not `src/stdlib_flags.h`). The existing
text was ambiguous about which file to modify.

🤖 Prepared with Claude Code

Co-authored-by: Claude <noreply@anthropic.com>
This commit is contained in:
Kim Morrison
2025-11-28 23:56:59 +11:00
committed by GitHub
parent dc5abb0500
commit eb8298432e
1 changed files with 3 additions and 0 deletions
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doc/dev/bootstrap.md
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@@ -72,6 +72,9 @@ update the archived C source code of the stage 0 compiler in `stage0/src`.
The github repository will automatically update stage0 on `master` once
`src/stdlib_flags.h` and `stage0/src/stdlib_flags.h` are out of sync.
To trigger this, modify `stage0/src/stdlib_flags.h` (e.g., by adding or changing
a comment). When `update-stage0` runs, it will overwrite `stage0/src/stdlib_flags.h`
with the contents of `src/stdlib_flags.h`, bringing them back in sync.
NOTE: A full rebuild of stage 1 will only be triggered when the *committed* contents of `stage0/` are changed.
Thus if you change files in it manually instead of through `update-stage0-commit` (see below) or fetching updates from git, you either need to commit those changes first or run `make -C build/release clean-stdlib`.