ifneq ($(ARMBIAN_FIRMWARE_FILES),)
define ARMBIAN_FIRMWARE_INSTALL_FILES
- cd $(@D) ; \
- $(TAR) c $(sort $(ARMBIAN_FIRMWARE_FILES)) | \
- $(TAR) x -C $(TARGET_DIR)/lib/firmware
+ cd $(@D) && \
+ $(TAR) cf install.tar $(sort $(ARMBIAN_FIRMWARE_FILES)) && \
+ $(TAR) xf install.tar -C $(TARGET_DIR)/lib/firmware
endef
endif