Re: -I option expansion and -Wmissing-include-dirs

[Michal Marek <mmarek@xxxxxxx>]

On 25.11.2011 14:46, Kirill A. Shutemov wrote:
> Hi,
> 
> Currently, kbuild makes -I option expansion without any check if the
> resulting include directory exists. It produce warnings if you try to build
> with W=1 which enables -Wmissing-include-dirs. For example:
> 
> $ make W=1 O=~/var/tmp drivers/gpu/drm/drm_auth.o
>   Using /home/space/kas/git/public/linux as source for kernel
>   GEN     /home/space/kas/var/tmp1/Makefile
>   CHK     include/linux/version.h
>   CHK     include/generated/utsrelease.h
>   CALL    /home/space/kas/git/public/linux/scripts/checksyscalls.sh
>   CC [M]  drivers/gpu/drm/drm_auth.o
> cc1: warning: include/drm: No such file or directory [enabled by default]
> 
> It would be nice to address the issue.

That's not a kbuild bug but a drm Makefile bug. It should be passing
-I$(src)/include/drm. But it apparently builds even with the wrong
argument, so it can probably go away.

Michal

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