+HALFILE:=$(lastword $(sort $(wildcard ./ath_hal-*.tgz)))
+ifneq ($(HALFILE),)
+ define Build/Prepare
+ $(call Build/Prepare/Default)
+ rm -rf $(PKG_BUILD_DIR)/tmp
+ mkdir -p $(PKG_BUILD_DIR)/tmp
+ tar xvzf $(HALFILE) -C $(PKG_BUILD_DIR)/tmp
+ $(CP) $(PKG_BUILD_DIR)/tmp/ath_hal*/* $(PKG_BUILD_DIR)/hal/
+ rm -rf $(PKG_BUILD_DIR)/tmp
+ endef
+endif
+