Hello, On Sun, Apr 8, 2018 at 3:10 AM, Mark H Weaver <m...@netris.org> wrote: > Leo Famulari <l...@famulari.name> writes: > >> On Sat, Apr 07, 2018 at 02:36:04PM -0400, Mark H Weaver wrote: >>> One more thing: I had to add 'flex' and 'bison' as native-inputs because >>> the build system in 4.16 now concludes that they need to be re-run for >>> some reason. This could perhaps be avoided by adding a phase to touch >>> the generated files, but I didn't try it. >> >> I noticed this too while building 4.16 with Debian's tooling (`make >> bindeb-pkg`). > > That's interesting. I guess the timestamps in your unpacked source > directory were probably not zeroed, so I guess that timestamps are not > the issue here.
This is not specific to guix / guixsd building the kernel. I think that's intentional, the kbuild system has been modified to always regenerate the files from their sources. See lkml discussion: https://lkml.org/lkml/2017/8/19/49 See commit: 29c833061c1d8c2d1d23a62e7061561eadd76cdb Merged in : 562f36ed28e6faa4245ea2ca1392d90ab98ebbe8 Hope that helps -- Vincent Legoll
