> This is what I'm doing with my style already. I use #ifdef/#endif
> and before executing mkgmap I create a local copy of the style with
> help of cpp.
> I like that more, because I can check the resulting style and find
> errors much easier then if I would need to guess what mkgmap is doing.

I agree that this is a good solution as long as you don't want to publish
the input to cpp. If I remember correctly, the options to run different
c++ compilers on different platforms are very different .

Gerd