1. WKTRaster Configuration

Run ./configure --help and check 3 options:

--enable-rtapi-debug
    Defines POSTGIS_RASTER_API_DEBUG, turns on debugging of RASTER core API

--enable-rtpg-debug
    Defines POSTGIS_RASTER_PG_DEBUG, turns on debugging of PostGIS RASTER activity

--enable-rtpgmem-debug
    Defines POSTGIS_RASTER_PG_DEBUG_MEM, turns on debugging PostGIS RASTER memory activity.
    Simply, overrides de-/allocators with custom calls to help tracking memory usage.

2. Execution

export PGHOST=$PWD/tmp

/usr/lib/postgresql/8.3/bin/postgres --single  -k $PGHOST < test.sql
psql