hello.nix

with import <nixpkgs> {};

gccStdenv.mkDerivation {
  name = "hello";
  src = /nix/store/3x7dwzq014bblazs7kq20p9hyzz0qh8g-hello-2.10.tar.gz;
  buildCommand = ''
    tar -xzf $src
    cd hello-2.10
    ./configure --prefix=$out
    make
    make install
  '';
  system = builtins.currentSystem;
}