Ingenious solution Laslo. I think it is worth putting on the wiki. A few projects may use more than one language and compiler. Since at the moment we don't want to complicate Geany for a rare use-case this gives a solution for those projects.
I cannot add a new page under howto-s. I don't see a "create new page" link or anything. I'm not familiar with docuwiki. Can you please help me out?
L