[Proj] Belgian 2008 Coordinates

[Irwin Scollar]

I need to use EPSG 3812 to read and write GeoTiffs using code from 
LibGeoTiff 1.3.0, and although the parameters are in the 
coordinate_reference_system.csv file, I can't open a GeoTiff file 
with these parameters correctly and receive an "unkown 3812" error in 
the geotifcp output.

The proj4 entry in the EPSG Spatial Reference is empty, but the Human 
Readable OGC WKT entry correctly shows:

PROJCS["ETRS89 / Belgian Lambert 2008",
     GEOGCS["ETRS89",
         DATUM["European Terrestrial Reference System 1989",
             SPHEROID["GRS 1980",6378137.0,298.257222101,
                 AUTHORITY["EPSG","7019"]],
             TOWGS84[0.0,0.0,0.0,0.0,0.0,0.0,0.0],
             AUTHORITY["EPSG","6258"]],
         PRIMEM["Greenwich",0.0,
             AUTHORITY["EPSG","8901"]],
         UNIT["degree",0.017453292519943295],
         AXIS["Geodetic latitude",NORTH],
         AXIS["Geodetic longitude",EAST],
         AUTHORITY["EPSG","4258"]],
     PROJECTION["Lambert Conic Conformal (2SP)",
         AUTHORITY["EPSG","9802"]],
     PARAMETER["central_meridian",4.359215833333335],
     PARAMETER["latitude_of_origin",50.79781500000001],
     PARAMETER["standard_parallel_1",49.833333333333336],
     PARAMETER["false_easting",649328.0],
     PARAMETER["false_northing",665262.0],
     PARAMETER["standard_parallel_2",51.16666666666667],
     UNIT["m",1.0],
     AXIS["Easting",EAST],
     AXIS["Northing",NORTH],
     AUTHORITY["EPSG","3812"]]

Can this be patched in libgeotif?  If so, where should the patch(es) 
be made, and what should be the correct entry in epsg_pcs.inc ?

I tried

/* Newer PCS */
ValuePair(PCS_ETRS89_Belgium_Lambert_2008, 3812)

without success.

Irwin Scollar