anchor.diff:      sha256 = "0pnva72f2w4jcgnl1y7nw5rdly4ipx3hji4c9yc9s0hna1n2ijxn";
     };
   
  -  buildInputs = [ libxml2 postgresql geos proj gdal json_c protobufc ];
  +  buildInputs = [ libxml2 postgresql geos proj gdal json_c protobufc libiconv ];
     nativeBuildInputs = [ perl pkgconfig ];
     dontDisableStatic = true;
   
  
positive.code: , pkgconfig
  , file
  , protobufc
  }:
  stdenv.mkDerivation rec {
    name = "postgis-${version}";
  
negative.code:     homepage = https://postgis.net/;
      license = licenses.gpl2;
      maintainers = [ maintainers.marcweber ];
      platforms = platforms.all;
    };
  }
  