DeadUrl: version 0.1.2-r1: HOMEPAGE: connection failed: https://sigrok.org/wiki/Libserialport
  DeadUrl: version 0.1.2-r1: SRC_URI: connection failed: https://sigrok.org/download/source/libserialport/libserialport-0.1.2.tar.gz
  DeadUrl: version 9999: HOMEPAGE: connection failed: https://sigrok.org/wiki/Libserialport