1. #1
  2. test -d foldername || mkdir -p foldername
  4. #2
  5. ifeq ($(FILE), $(wildcard $(FILE)))
  6.     #do something here
  7. endif
  9. #3
  10. exist = $(shell if [ -f $(FILE) ]; then echo "exist"; else echo "notexist"; fi;)
  11. ifeq (exist, "exist")
  12.     #do something here
  13. endif

如何在makefile中检查某个文件/文件夹是否存在

makefile中如何判断一个文件是否存在