http://gambaswiki.org/bugtracker/edit?object=BUG.2408&from=L21haW4- Comment #8 by Benoît MINISINI: > Where is the text file to set it? remember that the IDE not run It's an environmental variable, it is not managed by Gambas. You can run the IDE that way from a shell: $ GB_NO_JIT=1 gambas3