-$(obj)bootscript.image: $(src)bootscript.hush $(src)Makefile
- -$(OBJTREE)/tools/mkimage -A ppc -O linux -T script -C none -a 0 -e 0 -n bootscript -d $(src)bootscript.hush $@
+$(obj)/bootscript.c: $(obj)/bootscript.image $(src)/x2c.awk
+ $(call cmd,awk)
+
+MKIMAGEFLAGS_bootscript.image := -A ppc -O linux -T script -C none \
+ -a 0 -e 0 -n bootscript
+$(obj)/bootscript.image: $(src)/bootscript.hush
+ $(call cmd,mkimage)
+
+clean-files := bootscript.c bootscript.image