On 1 October 2018 at 17:03, Torsten Duwe <duwe@xxxxxx> wrote: > On Mon, Oct 01, 2018 at 04:52:27PM +0200, Ard Biesheuvel wrote: >> >> I guess we now have Kbuild/Kconfig support for this, no? I mean, we >> can now show/hide options depending on the capabilities of the >> toolchain. > > Config options depending on flags availability? > Yes. Note that 'make menuconfig' now prints the compiler version at the top, and kconfig options can now 'depend' on compiler features, although I must admit I don't know how it works. >> I am not saying it would be a better approach, though - I'd rather >> have a warning than have things silently disabled, but other people >> may think differently. > > Even then this switch has to be enabled, no matter who or what sets it. > Note that this patch leaves everything as-is. Only arm64 users with > "old" compilers would need to take action. > > Torsten >
