Nix Pill 12.7 patch

[jane@nixos:~/graphviz]$ cat default.nix
let 

pkgs = import <nixpkgs> {}; 
mkDerivation = import ./autotools.nix pkgs;
patchedPkgs = import /home/jane/nixpkgs {} // {binutils-unwrapped="";};
mkDerivation2 = import ./autotools.nix patchedPkgs;
libs = with patchedPkgs; { inherit gd fontconfig bzip2 libjpeg;};

in
{
        hello = import ./hello.nix { inherit mkDerivation ;};
        graphviz = import ./graphviz.nix ({ mkDerivation = mkDerivation2; } // libs);
        graphvizCore = import ./graphviz.nix ({ mkDerivation = mkDerivation2; gdSupport = false; } // libs);
}

[jane@nixos:~/graphviz]$ cat autotools.nix 
pkgs: attrs:
    with pkgs;
    let defaultAttrs = {
        builder = "${bash}/bin/bash";
        args = [ ./builder.sh ];
        baseInputs = [ gzip gnumake gcc binutils-unwrapped binutils coreutils gawk gnused gnugrep gnutar findutils patchelf ];
        setup = ./setup.sh;
        
buildInputs = [];
        system = builtins.currentSystem;
    };
    in
    derivation (defaultAttrs // attrs)

[jane@nixos:~/graphviz]$ cat hello.nix 
{ mkDerivation }:

 mkDerivation {
  name="hello";
  src=./hello-2.10.tar.gz;
}

[jane@nixos:~/graphviz]$ cat graphviz.nix 
{ mkDerivation, gdSupport ? true, gd, fontconfig, libjpeg, bzip2 }:

 mkDerivation {
  name = "graphviz";
  src = ./graphviz-2.38.0.tar.gz;
  buildInputs = if gdSupport then [ gd fontconfig libjpeg bzip2 ] else [];
}