With the patch below this is added as EXTRADEFS flags so I can pick it up from the Makefile_in's and convert to .dsp compile rules.
wouldn't it be better to add them to another specific define (like EXTRAWINDEFS or something) just to really know what they are for ?
If you wish. I don't care either way.
I just want the defines somewhere so I can find them in the Makefile.in to .dsp/.dsw convertor.