message: Remove now obsolete folder creation
diff: @@ -43,7 +43,6 @@ $(OBJS): $(OBJDIR)%.o : $(SRCDIR)%.cpp $(OBJDIR)%.d | build-folder
  .PHONY: build-folder
  build-folder:
  @mkdir -p $(patsubst $(SRCDIR)%,$(OBJDIR)%, $(FOLDERS))
  - @mkdir -p $(patsubst $(SRCDIR)%,$(OBJDIR)%, $(FOLDERS))
  $(OBJDIR)%.d: ;
  .PRECIOUS: $(OBJDIR)%.d
  