On Thu, Apr 15, 2021 at 4:02 PM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: > > On 4/14/21 11:52 PM, Masahiro Yamada wrote: > > On Thu, Apr 15, 2021 at 4:27 AM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: > >> > >> Currently when using "W=1" with UML builds, there are over 700 warnings > >> like so: > >> > >> CC arch/um/drivers/stderr_console.o > >> cc1: warning: ./arch/um/include/uapi: No such file or directory [-Wmissing-include-dirs] > >> > >> but arch/um/ does not have include/uapi/ at all, so don't > >> include arch/um/include/uapi/ in USERINCLUDE for UML. > > > >> Option 4: simply mkdir arch/um/include/uapi > >> That's what I did first, just as a test, and it works. > > > > > > I like Option 4. > > > > But, you cannot do "mkdir -p arch/um/include/uapi" at build-time > > because the build system should not touch the source tree(, which > > might be read-only) > > for O= building. > > > > How about adding > > > > arch/um/include/uapi/asm/Kbuild, > > > > which is just having a SPDX one-liner? > > Wow! :) > That's what Al Viro suggested also. > I'll submit that patch later today (Thursday my time). > > thanks. > -- > ~Randy > BTW, after fixing this UML problem, can we move -Wmissing-include-dirs to the top Makefile? Is there any other source of -Wmissing-include-dirs warnings? -- Best Regards Masahiro Yamada
