The article discusses the process of compiling a Rust application into three different binaries: a native binary and two WebAssembly versions using different base images. The code is an HTTP server returning the flavor of the underlying image through the endpoint. The author introduces a compile flag configuration to handle this without manually defining each variant. Additionally, it mentions the use of build scripts in Rust, which aid in integrating and automating third-party code compilation, facilitating a scalable approach for managing multiple configurations without redundancy.
fn main() { println!("cargo:rustc-cfg=flavor=embed"); }
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