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| author | James <> | 2013-03-17 12:16:37 +0000 |
|---|---|---|
| committer | James <> | 2013-03-17 12:16:37 +0000 |
| commit | 27b76ab0671089c47506615a796a261e993896a7 (patch) | |
| tree | 61213d67e7fa87b20356b23798558e2c4212c42f /include/prereq.mk | |
| download | trunk-36060-master.tar.gz trunk-36060-master.tar.bz2 trunk-36060-master.zip | |
Diffstat (limited to 'include/prereq.mk')
| -rw-r--r-- | include/prereq.mk | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/include/prereq.mk b/include/prereq.mk new file mode 100644 index 0000000..4a55c89 --- /dev/null +++ b/include/prereq.mk @@ -0,0 +1,62 @@ +# +# Copyright (C) 2006-2007 OpenWrt.org +# +# This is free software, licensed under the GNU General Public License v2. +# See /LICENSE for more information. +# + +ifneq ($(__prereq_inc),1) +__prereq_inc:=1 + +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 +endif + +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 $$(call Require,$(1),$(2))) +endef + +define RequireHeader + define Require/$(1) + [ -e "$(1)" ] + endef + + $$(eval $$(call Require,$(1),$(2))) +endef + +.NOTPARALLEL: |