Re: Problem with trying to build qemu-9.0.2 - it requires dtc for all architectures

[Adolf Belka <adolf.belka@ipfire.org>]

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Hi Michael,

On 03/09/2024 09:24, Michael Tremer wrote:
> Hello Adolf,
> 
> Yes, you can make those changes.
> 
> dtc is the device tree compiler and it should be quick to build. We just didn’t do that since we didn’t have any use for it apart from aarch64.
> 
> Move it wherever you want. It should not have any further dependencies. We can build it for all architectures.

I did that and qemu found libfdt but then said that it was too old and that a min of 1.5.1 was required but the updated version of dtc I had built was version 1.7.1

It looks like qemu can correctly detect the presence of libfdt but not the version number.

I have raised this as an issue in the qemu gitlab site.

Version 9.0.0 still had the dtc subproject included in the source tarball, so I am currently building that and have left the IPFire dtc where it was for the moment.

This will still update qemu by 11 version numbers.

I will wait to see what response I get back from the qemu team for updating to 9.0.2

Regards,
Adolf.

> 
> -Michael
> 
>> On 2 Sep 2024, at 19:46, Adolf Belka <adolf.belka(a)ipfire.org> wrote:
>>
>> Hi All,
>>
>> I am trying to do an update of the qemu package.
>>
>> It is failing for a missing fdt library which it says is required by targets x86_64-softmmu, aarch64-softmmu and riscv64-softmmu.
>>
>> The previous version that we currently have, 8.1.2 has a bundled dtc which includes the fdt library. That has been removed, probably with the change to the 9.x branch as it is not in 9.0.2
>>
>> We have the dtc package in make but it is after qemu.
>>
>> I could move it to before qemu, however I also note that the dtc package is specified only for aarch64 but if we need to have the above softmmu targets specified then qemu is requiring the fdt library for all our architectures.
>>
>> Before I move dtc and change it to be for all architectures, I just want to flag this up and confirm that it is the right thing to do.
>>
>> Regards,
>>
>> Adolf.
>>
>