[OBSD Programming] any conventional howto?

[Christian Schäfer <caefer_(_at_)_krachstoff_(_dot_)_net>]

hi there,

since I am pretty new to unix programming (the stevens is already 
ordered! ;-) I have a lot of questions.

but the major ones have little to do with programming.
where can I inform myself about conventions like:

- how should my sources be (folder-)structured
- are there any standards for writing makefiles
- how to write a man page
- what will I have to consider to make my project compilable on most 
*nix platforms
- is it necassary to use configure and how
- what does it need to make a project/programm complete


I tried anjuta for development once and it created a structure and a lot 
of stuff before I wrote the first line of code. what was all that stuff 
and do I need it?

right now I decided to use eclipse/cdt for development.
the sources are stored in cvs on openbsd which is the primary target as 
well. the developing clients are mostly running linux (gentoo).

is it possible to have two makefiles one for each platform?



thanks a lot in advance for any url, booktips or answers!


regards
/christian