No doubt that installing wx-widget is the easier way.
So master, on wich way shall i go on ?

The double click application should be a way to make XaraLx as a stand alone application wich could be downloaded by other mac 's users.

but i'm going to chose the 1st way because you said it was a good idea

I will try the other way in few days when i will have more time.
So any advice for the 1st solution ? Or should i just do a make install as root ?

thank you very much Ben

ps : I'm going to report the Xara's folk about this heavy executable