cmp --quiet TODO_BUILD_DIR/$$$${srcfname} $(1)/$$$${destfname} \
|| ( mkdir -p `dirname $(1)/$$$${destfname}` && $$(call cp_cmd,TODO_BUILD_DIR/$$$${srcfname},$(1)/$$$${destfname}) ) || exit 1 ; )
endef
+
+# TODO: *_GEN_HEADERS should be copied by normal rules during build
+# phase because they are generated by another rule.