autocfg

79.8M downloads in the last 30 days (2.7M/day), up 1% from the previous period.

1.1K crates depend on autocfg. Strong ecosystem adoption means battle-tested code and long-term stability.

The API has been stable (1.x) for over 8 years with 18 releases. This level of maturity means you can depend on it without worrying about breaking changes.

autocfg has no external dependencies — minimal supply chain risk and fast compile times.

At 18KB, autocfg is lightweight. Small crate size correlates with focused, well-scoped functionality.

Notable dependents include num-traits, memoffset, async-io, matrixmultiply, fs-err. When high-quality crates choose autocfg, it's a strong quality signal.