# Upstream only distributes xz-compressed archives, which opkbuild doesn't
# support.  So we repack with gzip compression.

upstream_base_url = http://downloads.xiph.org/releases/$(upstream_source_dir)
upstream_url = $(upstream_base_url)/$(upstream_archive)
upstream_archive = $(OPK_SOURCE)-$(OPK_SOURCE_VERSION_UPSTREAM).tar.xz
source_archive = ../$(OPK_SOURCE)-$(OPK_SOURCE_VERSION_UPSTREAM).orig.tar.gz

$(source_archive):
	wget -c '$(upstream_url)'
	printf '$(source_md5sum)  $(upstream_archive)' | md5sum -c -
	unxz -c '$(upstream_archive)' | tar -x
	rm -f '$(upstream_archive)' '$(upstream_archive).asc'
	tar -czf '$(source_archive)' \
		$(OPK_SOURCE)-$(OPK_SOURCE_VERSION_UPSTREAM)
	mv $(OPK_SOURCE)-$(OPK_SOURCE_VERSION_UPSTREAM) src

source: $(source_archive)