ifneq ($(wildcard $(PKG_BUILD_DIR)/.config_*),$(subst .configured_,.config_,$(STAMP_CONFIGURED)))
define Build/Configure/rebuild
$(FIND) $(PKG_BUILD_DIR) -name \*.o -or -name \*.a | $(XARGS) rm -f
ifneq ($(wildcard $(PKG_BUILD_DIR)/.config_*),$(subst .configured_,.config_,$(STAMP_CONFIGURED)))
define Build/Configure/rebuild
$(FIND) $(PKG_BUILD_DIR) -name \*.o -or -name \*.a | $(XARGS) rm -f