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Add a note about rustflags compatibility.

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Eric Huss 2021-05-29 17:44:16 -07:00
parent b1684e2849
commit 2d08c73c28
1 changed files with 6 additions and 0 deletions
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6
src/doc/src/reference/config.md
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@ -349,6 +349,12 @@ Without `--target`, the flags will be passed to all compiler invocations
you have args that you do not want to pass to build scripts or proc macros and
are building for the host, pass `--target` with the host triple.
> **Caution**: Due to the low-level nature of passing flags directly to the
> compiler, this may cause a conflict with future versions of Cargo which may
> issue the same or similar flags on its own which may interfere with the
> flags you specify. This is an area where Cargo may not always be backwards
> compatible.
##### `build.rustdocflags`
* Type: string or array of strings
* Default: none