{"id":57362,"library":"rustversion","title":"Rustversion","description":"A procedural macro for conditional compilation based on the Rust compiler version.","status":"active","version":"1.0.22","language":"rust","source_language":null,"source_url":"https://github.com/dtolnay/rustversion","tags":["macro","conditional","compilation","version"],"install":[{"cmd":"# Cargo.toml\n[dependencies]\nrustversion = \"1.0.22\"","lang":"toml","label":"Cargo.toml"},{"cmd":"cargo add rustversion","lang":"bash","label":"cargo add"}],"dependencies":[],"imports":[{"symbol":"rustversion","correct":"use rustversion;"}],"quickstart":{"code":"use rustversion::attr;\n\n#[attr(1.50, deprecated = \"use newer version\")]\npub fn old_function() {}","lang":"rust","description":"Use the `attr` macro to conditionally apply attributes based on Rust version."},"warnings":[],"env_vars":null,"search_vec":"'base':8 'compil':7,12,16 'condit':6,15 'macro':4,14 'procedur':3 'rust':11 'rustvers':1 'version':13,17","created_at":"2026-06-16T15:39:27.482588+00:00","updated_at":"2026-06-16T15:39:27.482588+00:00","problems":[],"ecosystem":"crates","meta_description":null,"install_score":null,"quickstart_score":null,"quickstart_tag":null,"pypi_latest":null,"cli_name":null,"cli_version":null,"type":"library","homepage":"https://github.com/dtolnay/rustversion","github":"https://github.com/dtolnay/rustversion","docs":"https://docs.rs/rustversion/","changelog":null,"pypi":null,"npm":null,"openapi_spec":null,"status_page":null,"smithery":null,"categories":["utility","build-tool"],"base_url":null,"auth_type":null,"provenance":{"verified_status":null,"verified_at":null,"last_verified":"2026-06-16","next_check":"2026-12-13","install_tag":null}}