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-rw-r--r--vendor/libc/README.md8
1 files changed, 6 insertions, 2 deletions
diff --git a/vendor/libc/README.md b/vendor/libc/README.md
index a8a3afd9f..bc5ad18f6 100644
--- a/vendor/libc/README.md
+++ b/vendor/libc/README.md
@@ -35,13 +35,16 @@ libc = "0.2"
This feature derives `Debug`, `Eq`, `Hash`, and `PartialEq`.
* `const-extern-fn`: Changes some `extern fn`s into `const extern fn`s.
- This feature requires a nightly rustc.
+ If you use Rust >= 1.62, this feature is implicitly enabled.
+ Otherwise it requires a nightly rustc.
* **deprecated**: `use_std` is deprecated, and is equivalent to `std`.
## Rust version support
-The minimum supported Rust toolchain version is **Rust 1.13.0** . APIs requiring
+The minimum supported Rust toolchain version is currently **Rust 1.13.0**.
+(libc does not currently have any policy regarding changes to the minimum
+supported Rust version; such policy is a work in progress.) APIs requiring
newer Rust features are only available on newer Rust toolchains:
| Feature | Version |
@@ -53,6 +56,7 @@ newer Rust features are only available on newer Rust toolchains:
| `core::ffi::c_void` | 1.30.0 |
| `repr(packed(N))` | 1.33.0 |
| `cfg(target_vendor)` | 1.33.0 |
+| `const-extern-fn` | 1.62.0 |
## Platform support