# $Id$
# $URL$
#
WEBFETCH		:= wget
SHA1SUM			:= sha1sum

ALL			+= openvswitch
openvswitch-URL		:= "http://openvswitch.org/cgi-bin/gitweb.cgi?p=openvswitch;a=snapshot;h=ef72dd87d6ad4e511d1e0bddc31d4716f0914fab;sf=tgz"
openvswitch-SHA1SUM	:= 74c41cb4bd95df3ad3567c5c8bca7624d7e7b534
openvswitch		:= $(notdir $(openvswitch-URL))

all: $(ALL)
.PHONY: all

##############################
define download_target
$(1): $($(1))
.PHONY: $($(1))
$($(1)): 
	@if [ ! -e "$($(1))" ] ; then echo "$(WEBFETCH) -Oopenvswitch-ef72dd8.tar.gz $($(1)-URL)" ; $(WEBFETCH) -Oopenvswitch-ef72dd8.tar.gz $($(1)-URL) ; fi
	@if [ ! -e "$($(1))" ] ; then echo "Could not download source file: $($(1)) does not exist" ; exit 1 ; fi
	@if test "$$$$($(SHA1SUM) $($(1)) | awk '{print $$$$1}')" != "$($(1)-SHA1SUM)" ; then \
	    echo "sha1sum of the downloaded $($(1)) does not match the one from 'Makefile'" ; \
	    echo "Local copy: $$$$($(SHA1SUM) $($(1)))" ; \
	    echo "In Makefile: $($(1)-SHA1SUM)" ; \
	    false ; \
	else \
	    ls -l $($(1)) ; \
	fi
endef

$(eval $(call download_target,openvswitch))

sources: $(ALL) 
.PHONY: sources

####################
# default - overridden by the build
SPECFILE = openvswitch.spec

PWD=$(shell pwd)
PREPARCH ?= noarch
RPMDIRDEFS = --define "_sourcedir $(PWD)" --define "_builddir $(PWD)" --define "_srcrpmdir $(PWD)" --define "_rpmdir $(PWD)"
trees: sources
	rpmbuild $(RPMDIRDEFS) $(RPMDEFS) --nodeps -bp --target $(PREPARCH) $(SPECFILE)

srpm: sources
	rpmbuild $(RPMDIRDEFS) $(RPMDEFS) --nodeps -bs $(SPECFILE)

TARGET ?= $(shell uname -m)
rpm: sources
	rpmbuild $(RPMDIRDEFS) $(RPMDEFS) --nodeps --target $(TARGET) -bb $(SPECFILE)

clean:
	rm -f *.rpm *.tgz *.bz2 *.gz

++%: varname=$(subst +,,$@)
++%:
	@echo "$(varname)=$($(varname))"
+%: varname=$(subst +,,$@)
+%:
	@echo "$($(varname))"