On Thursday, February 09, 2017, Florian Fainelli worte: > > I think the closest I might have come was to purposely break the build > > if more then 1 was select, but that still didn't stop you from making > > the selection. > > > > If someone smarter than me has a way to do (not just an idea...I > received > > lots of ideas but none of them worked), I'd be happy to hear it. > > I am definitively not a Kbuild expert, but it would almost necessarily > require introduce some kind of new type in the Kconfig/Kbuild syntax > that does something like that: > > - have a way to count the number of symbols that are selected and do a > "if ARCH_MULTI_V6_V7" (or an arbitrary expression) this most likely > should exist internally within Kconfig > > - introduce a new type of Kconfig type which is a "count", and gets > assigned this value that we just counted, something that could look like > this: > > count ARCH_MULTI_V6_V7_COUNT > tracks ARCH_MULTI_V6_V7 I did try the counting thing, but couldn't get it to work. I admit though, I did stop when the next step was to create a new type kind of thing that I could use for counting. That seemed to start going down a deeper path than I was hoping for. However, I am hesitant to go and try anything else because everything I've submitted so far has been NACKed. The only thing Russell said he'd agree to is a top level single-platform option. But, since that all got taken out, I assume there's some resistance to putting it back in. Chris