Makefile

   1 DIRS = $(sort $(wildcard src/*))
   2
   3 all:
   4         for i in $(DIRS); do printf "%-20s" $$i; make -s -C $$i; done
   5 run:
   6         for i in $(DIRS); do printf "%-20s" $$i; make -s -C $$i run; done
   7 clean:
   8         for i in $(DIRS); do make -s -C $$i clean; done