rules/clean-target.mk

   1
   2 define clean-target # args: $1 = dir, $2 = key, $3 = files/dirs to clean
   3 clean : clean_$1
   4 .PHONY: clean_$1
   5 clean_$1 : clean_$1_$2
   6 .PHONY: clean_$1_$2
   7 clean_$1_$2:
   8         $(RM) -rf $3
   9 endef