Hi Yamada-san, On Fri, Jan 18, 2019 at 5:15 AM Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx> wrote: > On Mon, Jan 14, 2019 at 10:52 PM Geert Uytterhoeven > <geert+renesas@xxxxxxxxx> wrote: > > This patch series contains several build fixes and cleanups for issues I > > encountered when trying to cross-build an rtctest binary in a separate > > output directory (like I use for all my kernel builds). > > Geert, > Thanks for working on this! > > My fundamental question is, > why did tools/ opt out Kbuild? Good question. I think it originally started as a separate small project. > I think lots of mess comes in > in order to support > cd tools/gpio; make > > instead of > > make tools/gpio/ > > Lots of files are duplicated in tools/build/ > in order to invent a different build system for tools/ I agree switching to kbuild would be the best solution. Unfortunately my kbuild foo is not strong enough... Thanks! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds