Hi Michalis, I agree that the bug is line 35 in the rules file make -C source/component clean all
Obviously it depends on left > right execution. When run in reverse, it does make all first, then cleans out what it just built!! I prefer adding an extra line, so we have .... make -C source/component clean make -C source/component all .... That ensures that make ... all is always run after the clean Regards, Peter @Abou, Shall I push this to Salsa?