anchor.diff:    buildInputs = [ glibc ] ++
       optional odbcSupport unixODBC;
   
  -  nativeBuildInputs = [ rpmextract patchelf ];
  +  nativeBuildInputs = [ rpmextract patchelf makeWrapper ];
   
     buildCommand = ''
       mkdir -p "${name}"
  
positive.code: { stdenv, requireFile, glibc, patchelf, rpmextract, libaio, odbcSupport ? false, unixODBC }:
  
  assert odbcSupport -> unixODBC != null;
  
  
negative.code:       patchelf --set-interpreter $(cat $NIX_CC/nix-support/dynamic-linker) \
                 --force-rpath --set-rpath "$out/lib:${libaio}/lib" \
                 $exe
        wrapProgram $exe --prefix LD_LIBRARY_PATH ":" $out/lib
      done
    '';
  
  