GNU bug report logs - #54780
[PATCH] gnu: lttng-ust: Fix dependencies.

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From: Olivier Dion <olivier.dion <at> polymtl.ca>
To: Maxime Devos <maximedevos <at> telenet.be>, 54780 <at> debbugs.gnu.org
Subject: [bug#54780] [PATCH] gnu: lttng-ust: Fix dependencies.
Date: Fri, 08 Apr 2022 10:28:28 -0400

On Fri, 08 Apr 2022, Olivier Dion <olivier.dion <at> polymtl.ca> wrote:
> On Fri, 08 Apr 2022, Maxime Devos <maximedevos <at> telenet.be> wrote:
>> Olivier Dion via Guix-patches via schreef op do 07-04-2022 om 20:18 [-
>> 0400]:
>>> Headers of liburcu are used by headers of lttng.
>>
>> This can be addressed without propagation, by substitute*.  Something
>> like:
>>
>>   (lambda* (#:key inputs #:allow-other-keys)
>>     (substitute* (find-files ".h")
>>       (("some-liburcu-header.h")
>>        (search-input-file inputs "include/some-liburcu-header.h"))))
>>
>> Attached is some more generic and automated code I wrote a while ago.
>> Maybe it's good enough for lttng?
>
> Is propagated-inputs not the use case for that or do I have a bad
> understanding of how propagated-inputs works?

To be clear about my commit.  Some headers of liburcu are required by
the application using lttng-ust.  To me, this translated into inputs
that are propagated.  Your solution would reduce the set of propagated
inputs (liburcu comes with many flavors but only one is used by
lttng-ust), by I find it ad-hoc and don't fully understand it.

-- 
Olivier Dion
oldiob.dev

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