一个遍历当前子目录的Makefile模板
要对子目录执行make,需要在当前目录制作一个Makefile,遍历所有子目录的Makefile,并运行相应的make target.
#
# Reference http://www.gnu.org/software/make/manual/make.html
#
# 需要排除的目录
exclude_dirs := include bin
# 取得当前子目录深度为1的所有目录名称
dirs := $(shell find . -maxdepth 1 -type d)
dirs := $(basename $(patsubst ./%,%,$(dirs)))
dirs := $(filter-out $(exclude_dirs),$(dirs))
# 避免clean子目录操作同名,加上_clean_前缀
SUBDIRS := $(dirs)
clean_dirs := $(addprefix _clean_,$(SUBDIRS) )
#
.PHONY: subdirs $(SUBDIRS) clean
# 执行默认make target
$(SUBDIRS):
$(MAKE) -C $@
subdirs: $(SUBDIRS)
# 执行clean
$(clean_dirs):
$(MAKE) -C $(patsubst _clean_%,%,$@) clean
clean: $(clean_dirs)
@find . \
\( -name '*.[oas]' -o -name '*.ko' -o -name '.*.cmd' \
-o -name '.*.d' -o -name '.*.tmp' -o -name '*.mod.c' \
-o -name '*.symtypes' \) \
-type f -print | xargs rm -f