Auto merge of #3525 - JohnTitor:rm-old-cfg-hacks, r=JohnTitor

Remove cfg hacks for old MSRV

Author: bors

Cargo.toml

@@ -14,6 +14,7 @@ exclude = ["/ci/*", "/.github/*", "/.cirrus.yml", "/triagebot.toml"]
 description = """
 Raw FFI bindings to platform libraries like libc.
 """
+rust-version = "1.71.0"
 
 [package.metadata.docs.rs]
 features = ["const-extern-fn", "extra_traits"]

README.md

@@ -51,21 +51,9 @@ libc = "0.2"
 
 ## Rust version support
 
-The minimum supported Rust toolchain version is currently **Rust 1.13.0**.
+The minimum supported Rust toolchain version is currently **Rust 1.71.0**
 (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 |
-|----------------------|---------|
-| `union`              |  1.19.0 |
-| `const mem::size_of` |  1.24.0 |
-| `repr(align)`        |  1.25.0 |
-| `extra_traits`       |  1.25.0 |
-| `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 |
+supported Rust version; such policy is a work in progress).
 
 ## Platform support