Label the compiler versions in build.rs with a comment and link

dtolnay · Dec 21, 2023 · afb298e · afb298e
1 parent a205cc9
commit afb298e
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/build.rs b/build.rs
@@ -59,10 +59,14 @@ fn main() {
     };
 
     if rustc < 51 {
+        // core::ptr::addr_of
+        // https://blog.rust-lang.org/2021/03/25/Rust-1.51.0.html#stabilized-apis
         println!("cargo:rustc-cfg=anyhow_no_ptr_addr_of");
     }
 
     if rustc < 52 {
+        // core::fmt::Arguments::as_str
+        // https://blog.rust-lang.org/2021/05/06/Rust-1.52.0.html#stabilized-apis
         println!("cargo:rustc-cfg=anyhow_no_fmt_arguments_as_str");
     }
 }