Makefile

@@ -4,8 +4,8 @@ ifeq (,$(ATS))
  $(error ATS shall be defined)
 else
  y       := $(subst ., ,$(ATS))
- ATS     := $(word 1, $(y))
- SUB_ATS := $(word 2, $(y))
+ override ATS     := $(word 1, $(y))
+ override SUB_ATS := $(word 2, $(y))
 endif
 
 ifeq (,$(TOPDIR))