On Mon, 11 Oct 2010 10:16:57 +0200 "Julien Devillers" <jdevillers at opti-time.com> wrote: > Hello > > > > I'm porting a project from Delphi to lazarus. > > How can I specify a {$DEFINE xxx} which will be defined for all > project's files ? Project options / Compiler options / Other / Custom -dYourDefine Mattias