The link time did increase a few seconds (I ahven't done any quantative

tests), but the benefit of not having to care about the link order is much

more important. Now files can be placed in the directories they belong to,

instead of the directories they had o be in in order not to break the

linking. This was the case with e.g. calligraphic-profile-rename.cpp, which

had to be in dialogs/ instead of ui/dialog/ because it was used in

toolbox.cpp. There are more examples. One idea we could try to reduce the

link time is to create a large static library from all the .o files.