MapScript Save to GeoTiff or Tiff/worldfile

[Simpson]

In MapScript 4.8.1 with GDAL 1.3.1.0, is there anything special one has to
do to save image to GeoTiff or to a Tiff with worldfile?

In the GeoTiff case, the tiff is created but no CRS info when I run a
gdalinfo against it.

In the Tiff with worldfile, no worldfile is created.

Thanks for any help,
Drew.


============= mapfile clip =====================

MAP
  EXTENT 764355.44479 3337347.51664 834777.592259 3402902.747157
  FONTSET "xxx"
  IMAGECOLOR 156 188 217
  IMAGETYPE GTIFWLD
  SYMBOLSET "xxx"
  SIZE 2347 2185
  STATUS ON
  UNITS METERS
  NAME "DIPEX3"

  OUTPUTFORMAT
    NAME "GTIFWLD"
    MIMETYPE "image/tiff"
    DRIVER "GDAL/GTiff"
    EXTENSION "tif"
    IMAGEMODE "PC256"
    TRANSPARENT FALSE
    FORMATOPTION "WORLDFILE=YES"
  END

  PROJECTION
    "init=epsg:32615"
  END

...
END

============= gdalinfo clip =======================

Driver: GTiff/GeoTIFF
Size is 2347, 2185
Coordinate System is `'
Corner Coordinates:
Upper Left  (    0.0,    0.0)
Lower Left  (    0.0, 2185.0)
Upper Right ( 2347.0,    0.0)
Lower Right ( 2347.0, 2185.0)
Center      ( 1173.5, 1092.5)
Band 1 Block=2347x3 Type=Byte, ColorInterp=Palette
  Color Table (RGB with 256 entries)
    0: 156,188,217,255
    1: 0,0,0,255
...


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