emacs tool and the -smp erlang option

[info]

Hello,
In order to use wxErlang, the -smp option shall be defined for erl.exe
I am using on windows the emacs tool for the compilation. Is it possible to define the -smp option in the .emacs file ?
If yes, how ?

J-Ph. Constantin
ITS3 Genève
www.its3.ch