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| -rw-r--r-- | Documentation/rust/general-information.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Documentation/rust/general-information.rst b/Documentation/rust/general-information.rst index 2d76e09da121..6146b49b6a98 100644 --- a/Documentation/rust/general-information.rst +++ b/Documentation/rust/general-information.rst @@ -151,3 +151,11 @@ configuration: #[cfg(CONFIG_X="y")] // Enabled as a built-in (`y`) #[cfg(CONFIG_X="m")] // Enabled as a module (`m`) #[cfg(not(CONFIG_X))] // Disabled + +For other predicates that Rust's ``cfg`` does not support, e.g. expressions with +numerical comparisons, one may define a new Kconfig symbol: + +.. code-block:: kconfig + + config RUSTC_VERSION_MIN_107900 + def_bool y if RUSTC_VERSION >= 107900 |