-PKG_OS:=$(word 2,$(subst -, ,$(shell $(HOSTCC) -dumpmachine)))
-PKG_CPU:=$(word 1,$(subst -, ,$(shell $(HOSTCC) -dumpmachine)))
-
-IB_NAME:=OpenWrt-ImageBuilder-$(BOARD)$(if $(SUBTARGET),_$(SUBTARGET))-for-$(PKG_OS)-$(PKG_CPU)
+IB_NAME:=OpenWrt-ImageBuilder-$(if $(CONFIG_VERSION_FILENAMES),$(VERSION_NUMBER)-)$(BOARD)$(if $(SUBTARGET),-$(SUBTARGET)).$(HOST_OS)-$(HOST_ARCH)