# # Copyright (C) 2006 OpenWrt.org # # This is free software, licensed under the GNU General Public License v2. # See /LICENSE for more information. # prereq: if [ -f $(TMP_DIR)/.prereq-error ]; then \ echo; \ cat $(TMP_DIR)/.prereq-error; \ rm -f $(TMP_DIR)/.prereq-error; \ echo; \ false; \ fi .SILENT: prereq define Require export PREREQ_CHECK=1 ifeq ($$(CHECK_$(1)),) prereq: prereq-$(1) prereq-$(1): FORCE echo -n "Checking '$(1)'... " if $(NO_TRACE_MAKE) -f $(firstword $(MAKEFILE_LIST)) check-$(1) >/dev/null 2>/dev/null; then \ echo 'ok.'; \ else \ echo 'failed.'; \ echo -e "$(PKG_NAME): $(strip $(2))" | perl -ne 's/\\\s*/\n/g,print' >> $(TMP_DIR)/.prereq-error; \ fi check-$(1): FORCE $(call Require/$(1)) CHECK_$(1):=1 .SILENT: prereq-$(1) check-$(1) endif endef define RequireCommand define Require/$(1) which $(1) endef $$(eval $$(call Require,$(1),$(2))) endef xenJames
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