Makefile的ifeq逻辑或，逻辑与的变通实现

-------------邏輯 "OR"------------

#VMX_MODE=y
#NORMAL_MODE=y

all:
ifeq ($(findstring y, $(VMX_MODE) $(NORMAL_MODE)), y)
@echo "successful"
else
@echo "failed"
endif

ref https://blog.youkuaiyun.com/u010312436/article/details/52459609