[opensuse-arm] Building existing package for armv7hl

Hi, There are a number of repos that don't have ARM enabled, e.g. server:irc. I supposed it's possible to build e.g. server:irc/bitlbee locally for armv7hl, but I failed to find out how to do so. ;-) On x86_64, after 'osc co repo/package', I can build a bi...