On Thu, Mar 26, 2020 at 10:50:48AM +0100, Jan Beulich wrote: > On 25.03.2020 22:12, Andrew Cooper wrote: > > All the requisite infrastructure looks to be already present. > > ... there's the one open prereq question of what happens upon > tool chain updates. It's not clear to me if/how kconfig would > get invoked despite none of the recorded dependencies having > changed in such a case. (I'm sure you realize there's no issue > with this when the determination occurs out of a makefile.)
We might need one small change for this to happen, it is to add a comment in .config which display the output of `$(CC) --version | head -1`. Simple :-). If the output of `$(CC) --version` changes, kconfig will run again. That would be enough to detect tool chain updates, right? Have a look at "include/config/auto.conf.cmd" to find out how kconfig is forced to run again. I'll prepare a patch. -- Anthony PERARD
