//! Nothing is built here. The file exists because `links` in Cargo.toml
//! requires it, and `links` is what makes two copies of this vocabulary in one
//! dependency graph a resolver error rather than a silent second copy.
//!
//! Cargo permits exactly one crate with a given `links` value per graph. That
//! is the same property `libsqlite3-sys` gives rusqlite, and it is why a
//! version bump here is tree-wide rather than per-repo. Intended: version skew
//! across consumers is the thing being prevented.
//!
//! The guard only bites between versions that both declare `links`, so it
//! stops future skew rather than skew against anything published before 0.16.0.