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add a note about disk space

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mark 2020-06-17 12:56:57 -05:00 committed by Who? Me?!
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@ -129,9 +129,10 @@ Then, edit `config.toml`. You will need to search for, uncomment, and update
the following settings:
- `debug = true`: enables debug symbols and `debug!` logging, takes a bit longer to compile.
- `incremental = true`: enables incremental compilation of the compiler itself.
This is turned off by default because it's technically unsound. Sometimes
this will cause weird crashes, but it can really speed things up.
- `incremental = true`: enables incremental compilation of the compiler itself,
which can significantly speed things up. This is turned off by default
because it's technically unsound; sometimes this will cause weird crashes.
Also, it can consume a lot of disk space.
- `llvm-config`: enables building with system LLVM. [See this chapter][sysllvm]
for more info. This avoids building LLVM, which can take a while.