use makemake::prelude::*;

fn main() {
    let mut makefile = Makefile::new();

    makefile.comment("Generated by makemake!");
    makefile.newline();

    let os = makefile.assign("OS", Function::shell("uname"));
    let sed = makefile.var("SED");
    makefile
        .branch_tree()
        .when_eq(os, "Darwin", |e| {
            e.assign(sed, "sed -i ''");
        })
        .otherwise(|e| {
            e.assign(sed, "sed -i");
        });

    print!("{}", makefile.build());
}