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build.rs
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use std::env;
fn main() {
let target = env::var("TARGET").unwrap();
//let out_dir = PathBuf::from(env::var("OUT_DIR").unwrap());
//let name = env::var("CARGO_PKG_NAME").unwrap();
if target.starts_with("thumbv6m-") {
println!("cargo:rustc-cfg=cortex_m");
println!("cargo:rustc-cfg=armv6m");
} else if target.starts_with("thumbv7m-") {
println!("cargo:rustc-cfg=cortex_m");
println!("cargo:rustc-cfg=armv7m");
} else if target.starts_with("thumbv7em-") {
println!("cargo:rustc-cfg=cortex_m");
//println!("cargo:rustc-cfg=armv7m");
println!("cargo:rustc-cfg=armv7em");
} else if target.starts_with("thumbv8m") {
println!("cargo:rustc-cfg=cortex_m");
println!("cargo:rustc-cfg=armv8m");
}
if target.ends_with("-eabihf") {
println!("cargo:rustc-cfg=has_fpu");
}
}