updated to work with NT (no dual macro definitions)

Rev: src/modules/Image/blit.c:1.25
Rev: src/modules/Image/colortable.c:1.29
Rev: src/modules/Image/configure.in:1.4
Rev: src/modules/Image/dct.c:1.10
Rev: src/modules/Image/font.c:1.22
Rev: src/modules/Image/image.c:1.70
Rev: src/modules/Image/matrix.c:1.11
Rev: src/modules/Image/operator.c:1.10
Rev: src/modules/Image/pattern.c:1.10
Rev: src/modules/Image/polyfill.c:1.16