Cross-platform apps

[Ross Clement <rclement dmu ac uk>]

This is not yet as serious a question as it looks.

I'm now back to writing my first ever gtk app again after a break.

I'm using gtk (natch), portAudio, and fftw. The program is being written
on Linux but I hope that it will be ported to windows (and possibly Mac)
at a later date.

How much difficulty am I likely to have when I get around to porting it?

a) None!
b) No more than a little
c) A considerable amount of work
d) The project from hell
e) Impossible

Cheers,

Ross-c