OBS build arch

English Open Build Service (OBS)
1

hello,
i’m starting with OBS …

  1. When i upload files compilation starts. First are built x86_64 and noarch where libs are put to /lib64 directory in noarch package (on local built this is not happening).
  2. When i disable x86_64 build (e.g. via web interface but doesn’t matter i think) and trigger rebuild x86_64 build appears in my home directory again.
  3. Where have i to define build arch (what is mandatory/has major priority) - OBS settings or spec file? (the “BuildArch:” is not defined in most example spec files on the opensuse wiki)

thanks