[Assist] How can I downgrade GCC?

[hironori.ueno]

Thank you.

I thought it might not work because of the warning, but
I should have started by checking the module in action.
I can't check the operation of the module right now,
so I'll check it later.

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

On Tuesday, March 1st, 2022 at 12:46 AM, <edgar at openmail.cc> wrote:

> On 2022-02-28 13:36, hironori.ueno wrote:
>
> > 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
> >
> > ----------------------------
> >
> > I thought it was a problem caused by updating GCC and tried to
> >
> > downgrade to get GCC back from 11.2.0 to 11.1.0.
> >
> > For the downgrade, I used the "downgrade" provided by AUR.
> >
> > ----------------------------
> >
> > $ sudo downgrade gcc gcc-libs
> >
> > ----------------------------
>
> Without being an expert, my experience is that downgrading anything
>
> related to libc means to downgrade the whole system or building a lot of
>
> packages from scratch. I imagine that a similar situation arises with
>
> GCC.
>
> Also, sometimes, warnings are innocuous (you can disregard them). In
>
> your case, I would try to compile and see if it works.
>
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