On 5 June 2018 at 09:10, Hong Liu <hongl.fnst at cn.fujitsu.com> wrote: > +PR = "r3" As this was an upgrade you can remove PR. > +SRC_URI = "${GNU_MIRROR}/bc/bc-${PV}.tar.gz \ Whilst you're here, ${BP} is BPN-PV so this can be ${GNU_MIRROR}/${BPN}/${BP}.tar.gz Ross