version=4

opts=uversionmangle=s/\.(\d+)rc(\d+)/.$1~rc$2/ \
 http://sf.net/asio/asio[\-\._]?(\d+\.\d*[02468]\.\d+(?:rc\d+)?)\.(?:tar\.xz|txz|tar\.bz2|tbz2|tar\.gz|tgz)
