contrib: add (disabled) rules.mak for daala

contrib/src/daala/rules.mak

+DAALA_VERSION := git
+DAALA_HASH := HEAD
+DAALA_GITURL := http://git.xiph.org/?p=daala.git;a=snapshot;h=$(DAALA_HASH);sf=tgz
+
+# Default disabled for now
+# PKGS += daala
+ifeq ($(call need_pkg,"daala"),)
+PKGS_FOUND += daala
+endif
+
+$(TARBALLS)/daala-git.tar.gz:
+	$(call download,$(DAALA_GITURL))
+
+.sum-daala: daala-$(DAALA_VERSION).tar.gz
+	$(warning $@ not implemented)
+	touch $@
+
+daala: daala-$(DAALA_VERSION).tar.gz .sum-daala
+	rm -Rf $@-git $@
+	mkdir -p $@-git
+	$(ZCAT) "$<" | (cd $@-git && tar xv --strip-components=1)
+	$(MOVE)
+	mkdir -p $@/m4
+
+DAALACONF := $(HOSTCONF) \
+	--disable-player --disable-tools
+
+DEPS_daala = ogg $(DEPS_ogg)
+
+.daala: daala
+	$(RECONF)
+	cd $< && $(HOSTVARS) ./configure $(DAALACONF)
+	cd $< && $(MAKE) install
+	touch $@