[Assist] How can I downgrade GCC?

[hironori.ueno]

Thank you Denis.

I am using the following versions of the kernel and architecture.
$ uname -rm
5.15.12-gnu-1 x86_64

I also knew that I needed to get the developers to build
the kernel with a newer version of GCC.

However, since it is a rolling release method, I thought that
the problem was that I updated the GCC package without
checking it, so I tried to downgrade(and it didn't work)
Should I contact the kernel package maintainer in such cases?

------- Original Message -------

On Tuesday, March 1st, 2022 at 7:20 AM, Denis 'GNUtoo' Carikli GNUtoo at cyberdimension.org wrote:

> On Mon, 28 Feb 2022 13:36:01 +0000
>
> "hironori.ueno" hironori.ueno at protonmail.com wrote:
>
>> Hi,
>
> Hi,
>
>> I have a problem and please let me know if there is a solution.
>>
>> I tried to build a module for dkms and got the following warning:
>>
>> ----------------------------
>>
>> warning: the compiler differs from the one used to build the kernel
>>
>> The kernel was built by: gcc (GCC) 11.1.0
>>
>> You are using: gcc (GCC) 11.2.0
>>
>> ----------------------------
>
> This is probably because we use GCC plugins for building the kernel:
>
>> $ grep CONFIG_GCC_PLUGINS abslibre/libre/linux-libre-/config.
>>
>> abslibre/libre/linux-libre-64/config.aarch64:CONFIG_GCC_PLUGINS=y
>>
>> abslibre/libre/linux-libre-64/config.armv7h:CONFIG_GCC_PLUGINS=y
>>
>> abslibre/libre/linux-libre-64/config.i686:CONFIG_GCC_PLUGINS=y
>>
>> abslibre/libre/linux-libre-64/config.x86_64:CONFIG_GCC_PLUGINS=y
>>
>> abslibre/libre/linux-libre-lts/config.armv7h:CONFIG_GCC_PLUGINS=y
>>
>> abslibre/libre/linux-libre-lts/config.i686:CONFIG_GCC_PLUGINS=y
>>
>> abslibre/libre/linux-libre-lts/config.x86_64:CONFIG_GCC_PLUGINS=y
>>
>> abslibre/libre/linux-libre-pck/config.armv7h:CONFIG_GCC_PLUGINS=y
>>
>> abslibre/libre/linux-libre-pck/config.i686:CONFIG_GCC_PLUGINS=y
>>
>> abslibre/libre/linux-libre-pck/config.x86_64:CONFIG_GCC_PLUGINS=y
>
> The solution is probably to have Parabola developers rebuild the kernels
>
> with newer GCCs here.
>
> What kernel and Parabola version (i686, armv7h, x86_64) do you use?
>
> Denis.
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