AGL should as 'distro' enforce a common set of compiler tune flags instead of letting each BSP choose its own. This will reduce the number of BSP's needed to compile applications down to:
- i586 (needed?)
- arm32 (e.g. vfpv4/neon + thumb2)
- arm64 (e.g. ??)
No BSP should override the DISTRO settings (?= or ??=).
- just one BSP needed for arm32 , arm64, x86 .