# apps/mp3/Makefile DIRS=mpegsound frontend subdir-build = $(patsubst %,_subdir_%,$(DIRS)) subdir-clean = $(patsubst %,_clean_%,$(DIRS)) subdir-install = $(patsubst %,_install_%,$(DIRS)) all: $(subdir-build) clean: $(subdir-clean) install: $(subdir-install) $(subdir-build): dummy @ $(MAKE) -C $(patsubst _subdir_%,%,$@) $(subdir-clean): dummy @ $(MAKE) -C $(patsubst _clean_%,%,$@) clean $(subdir-install): dummy @ $(MAKE) -C $(patsubst _install_%,%,$@) install dummy: