- (cd bombs && $(MAKE) distclean)
- (cd dbbrowse && $(MAKE) distclean)
- (cd forty && $(MAKE) distclean)
- (cd fractal && $(MAKE) distclean)
- (cd life && $(MAKE) distclean)
- (cd poem && $(MAKE) distclean)
+ -(cd bombs && $(MAKE) distclean)
+ -(cd forty && $(MAKE) distclean)
+ -(cd fractal && $(MAKE) distclean)
+ -(cd life && $(MAKE) distclean)
+ -(cd poem && $(MAKE) distclean)