2 # Copyright (C) 2006 OpenWrt.org
4 # This is free software, licensed under the GNU General Public License v2.
5 # See /LICENSE for more information.
12 if [ -f $(TMP_DIR)/.prereq-error ]; then \
14 cat $(TMP_DIR)/.prereq-error; \
22 .SILENT: $(TMP_DIR) prereq
25 ifeq ($$(CHECK_$(1)),)
28 prereq-$(1): $(TMP_DIR) FORCE
29 echo -n "Checking '$(1)'... "
30 if $(NO_TRACE_MAKE) -f $(firstword $(MAKEFILE_LIST)) check-$(1) >/dev/null 2>/dev/null; then \
34 echo -e "$(strip $(2))" >> $(TMP_DIR)/.prereq-error; \
41 .SILENT: prereq-$(1) check-$(1)
51 $$(eval $$(call Require,$(1),$(2)))