anchor.diff:      version = "2.1.4";
       sha256 = "1z00n5654r7l38ydkn2grbwl5gg0mravjwxfdipp7j18hjiw4wyd";
       sql_srcs = ["postgis.sql" "spatial_ref_sys.sql"];
  -    builtInputs = [gdal pkgconfig];
  +    builtInputs = [gdal json_c pkgconfig];
       dontDisableStatic = true;
       preConfigure = ''
         sed -i 's@/usr/bin/file@${file}/bin/file@' configure
  -      configureFlags="$configureFlags --with-gdalconfig=${gdal}/bin/gdal-config"
  +      configureFlags="$configureFlags --with-gdalconfig=${gdal}/bin/gdal-config --with-jsondir=${json_c}"
       '';
       postConfigure = ''
         sed -i "s|@mkdir -p \$(DESTDIR)\$(PGSQL_BINDIR)||g ;
  
positive.code: args@{fetchurl, composableDerivation, stdenv, perl, libxml2, postgresql, geos, proj, flex, gdal, pkgconfig, file, ...}:
  
    /*
  
  
negative.code:     '';
    });
  
  }
  