ebin and incl path

[Luc Taesch]

up to now i did pretty basic stuff, but now i need some organisation. as
far as i understnad, u put the /src, /ebin, (priv) , /incl dir  for
sources, beam, hrl.

bur how can i have the bin automatically put in bin, the incl taken from
incl,,...etc ?

are there some paramters to set, or env variable, or config erlanf files
? i have seen some outdir thingy added from emacs when i CcCk, and some
apps i looked into have no path added to the include, so i suppose the
path is modified, but how ?