anchor.diff:      sha256 = "0429snhp5acbz61pvblwlrwv8nxr6gf12p37f9xxwrkqv4ir7dd4";
     };
   
  -  buildInputs = [zlib libjpeg libpng imake];
  +  nativeBuildInputs = [ imake gccmakedep ];
  +  buildInputs = [ zlib libjpeg libpng ];
   
     patches = [
       ./patch-fig2dev-dev-Imakefile
  
positive.code:     runHook postPatch
    '';
  
    preBuild = ''
      xmkmf
      make Makefiles
    '';
  
    makeFlags = [ "CC=cc" ];
  
    preInstall = ''
      mkdir -p $out
  
negative.code: { stdenv, fetchurl, zlib, libjpeg, libpng, imake, gccmakedep }:
  
  stdenv.mkDerivation rec {
    name = "transfig-3.2.4";
  