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Rust errors / Names, paths and imports

Rust compiler error · checked with rustc 1.99.0

Rust error E0454: link name must not be empty

What it meansA link name was given with an empty name.

What rustc prints

error[E0454]: link name must not be empty
 --> main.rs:1:15
  |
1 | #[link(name = "")] extern "C" {}
  |               ^^ empty link name

Real output of rustc 1.99.0 compiling the official example below (2021 edition). Your names and line numbers will differ; the first line is the part to match.

E0454Names, paths and imports
Activein rustc 1.99.0
8related errors linked below

The compiler team's explanation

A link name was given with an empty name.

Erroneous code example:

#[link(name = "")] extern "C" {}
// error: `#[link(name = "")]` given with empty name

The rust compiler cannot link to an external library if you don't give it its name. Example:

#[link(name = "some_lib")] extern "C" {} // ok!

From rustc --explain E0454 (1.99.0), part of the Rust project, MIT or Apache-2.0. Official page.

Related errors

All 518 Rust error codes · Rust crate data · Glossary

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