Re: [PATCH] drm/radeon: Add build directory to include path

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On 2022-04-14 15:34, Alex Deucher wrote:
> On Thu, Apr 14, 2022 at 4:44 AM Christian König
> <ckoenig.leichtzumerken@xxxxxxxxx> wrote:
>> Am 14.04.22 um 09:37 schrieb Michel Dänzer:
>>> On 2022-04-14 08:24, Christian König wrote:
>>>> Am 13.04.22 um 18:14 schrieb Michel Dänzer:
>>>>> From: Michel Dänzer <mdaenzer@xxxxxxxxxx>
>>>>>
>>>>> Fixes compile errors with out-of-tree builds, e.g.
>>>>>
>>>>> ../drivers/gpu/drm/radeon/r420.c:38:10: fatal error: r420_reg_safe.h: No such file or directory
>>>>>      38 | #include "r420_reg_safe.h"
>>>>>         |          ^~~~~~~~~~~~~~~~~
>>>>
>>>> Well stuff like that usually points to a broken build environment.
>>> Just a separate build directory. Specifically, I'm hitting the errors with
>>>
>>>   make -C build-amd64 M=drivers/gpu/drm
>>>
>>> Generated headers such as r420_reg_safe.h reside in the build directory, so source files in the source directory can't find them without an explicit search path.
>>
>> I'm trying to swap back into my brain how all of this used to work, but
>> that's a really long time ago that I tried this as well.
>>
>>> Are you saying that should get added automagically somehow?
>>
>> Yes, exactly that. I'm like 95% sure that used to work, but I don't know
>> why exactly either.
>>
>>> FWIW, this is pretty common in the kernel according to git grep.
>>
>> Maybe Alex or somebody else with some more background in the kernel
>> Makefiles could jump in and help here.
> 
> I don't remember either.  I vaguely recall the build support for the
> mkregtable stuff being reworked a while ago.  A quick zip through the
> git logs shows a series from Masahiro Yamada from 2020.

Yamada-san, can you help us? :)

See https://patchwork.freedesktop.org/patch/482011/ for my patch.


-- 
Earthling Michel Dänzer            |                  https://redhat.com
Libre software enthusiast          |         Mesa and Xwayland developer



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