Typo

src/Makefile.housekeeping

 COMMA		:= ,
 DEBUG_OBJS	= $(foreach D,$(subst $(COMMA), ,$(DEBUG)),$(BIN)/$(D).dbg.o)
 DEBUG_REPLACE_OBJS = $(foreach D,$(subst $(COMMA), ,$(DEBUG)),$(BIN)/$(D).o)
-BLIB_OBJS	= $(DEBUG_OBJS) $(filter-out $(DEBUG_ORIG_OBJS),$(BOBJS))
+BLIB_OBJS	= $(DEBUG_OBJS) $(filter-out $(DEBUG_REPLACE_OBJS),$(BOBJS))
 
 # Print out all derived information for a given target.
 #
 #
 BLIB		= $(BIN)/blib.a
 $(BLIB) : $(BLIB_OBJS) $(BLIB_LIST) $(MAKEDEPS)
+	$(RM) $(BLIB)
 	$(AR) r $@ $(BLIB_OBJS)
 	$(RANLIB) $@
 blib : $(BLIB)