"Gautier" a �crit dans le message news: 17cd177c.0108060605.3dead633@posting.google.com... > About your problem: shouldn't you also have different directories > for .ali and .o files corresponding to the different compilations > with these source files having same name and same timestamp ? > I think you should. So, you would have a clean recompilation > for each version without the least doubt of an undesired mixture... > I find it a project management bug to count on smart recompilation > for differenciating source versions. Already mixing compilations with > different options can be a problem. > And instead of playing with ADA_INCLUDE_PATH, it would be safer to > select source directories with the -I option; same for objects and > ADA_OBJECTS_PATH. Actually we solve the problem with clean recompilation, and specific checks to be sure that the expected source was compiled when the program starts. This is not a big problem, we don't release our softwares with Gnat.