//! Build script for the main binary
usestd::env::{self, VarError};/// Sets some environment variables for the main binary
fnmain()->Result<(), VarError>{let pkg_name =env::var("CARGO_PKG_NAME")?;let pkg_name_uppercase = pkg_name.to_uppercase();println!("cargo:rustc-env=PKG_NAME_UPPERCASE={}", pkg_name_uppercase);Ok(())}