[SDL] configure, CVS, platform-dependant, etc...

[Simon]

> > There are packages like SDL around whose sole purpose is to
> > provide an abstraction layer which hides portability issues.
>
> SDL cant hide everything

Yup, for example, in my project, I will be forced to support MacOS
classic.  I think the lowest we have to support is MacOS 7.6.  One of
my friend is the MacOS classic expert, he'll probably bypass SDL
completely.

Many things are not supported by SDL and its libraries (net, image,
etc...) on MacOS 7.6, and this is where I'll need to have pre-compiler
code to separate what goes on Mac7.6 and what goes everywhere else.

I just never done this, I was wondering about your suggestions, I will
check autoconf and the others, I will make my own mind on it.  If you
have any other suggestions, please, feel free to send them here or to
me by email.

Thanks,
  Simon