Using multiple versions of gcc

[Balazs Javor <jb3@freemail.hu>]

Hi,

I have never done any developement on gcc before,
however I have the necessary packages installed, so that I
can compile packages distributed as source only.

I have both gcc 2.95.x and 3.x installed on my Woody box
and they seem to coexist just fine.

Now some packages seem to have preferences mostly against
using 3.x.

How do I know which compiler is invoked by calling the install
script? Also if I would want to use one of the compilers explicitly,
how would I invoke them?

Many thanks in advance!
best regards,
Balazs