Preferred Multi-Platform Development Method

[David Bovill]

I do roughly the same as the other posters - with the exception that for
certain projects where there is quite a bit of platform specific code I
branch these not within the handler, but out to platform specific handlers
that are then kept in platform specific libraries.

That way the switching comes to switching libraries - in cases where you
want the same project say on a usb-stick to work on multiple platforms -
then you would either have stub handlers that do the switching internally or
better have a load library routine that loads the appropriate platform
dependent library. Still I use the all contained in one handler technique
for most of the simpler cases.