1 2user_apps_sub_dirs=shell about 3 4all: 5 @list='$(user_apps_sub_dirs)'; for subdir in $$list; do \ 6 echo "make all in $$subdir";\ 7 cd $$subdir;\ 8 $(MAKE) all CFLAGS="$(CFLAGS) -I $(shell pwd)";\ 9 cd ..;\ 10 done