Re: Building liburing on musl libc gives error that errno.h not found

[Jens Axboe <axboe@kernel.dk>]

On 6/16/25 7:06 AM, Milan P. Stanić wrote:
> On Mon, 2025-06-16 at 06:34, Jens Axboe wrote:
>> On 6/15/25 1:56 PM, Milan P. Stani? wrote:
>>> On Sun, 2025-06-15 at 12:57, Jens Axboe wrote:
>>>> On 6/15/25 11:16 AM, Milan P. Stani? wrote:
>>>>> Hi,
>>>>>
>>>>> Trying to build liburing 2.10 on Alpine Linux with musl libc got error
>>>>> that errno.h is not found when building examples/zcrx.c
>>>>>
>>>>> Temporary I disabled build zcrx.c, merge request with patch for Alpine
>>>>> is here:
>>>>> https://gitlab.alpinelinux.org/alpine/aports/-/merge_requests/84981
>>>>> I commented in merge request that error.h is glibc specific.
>>>>
>>>> I killed it, it's not needed and should've been caught during review.
>>>> We should probably have alpine/musl as part of the CI...
>>>
>>> Fine.
>>>
>>>>> Side note: running `make runtests` gives 'Tests failed (32)'. Not sure
>>>>> should I post full log here.
>>>>
>>>> Either that or file an issue on GH. Sounds like something is very wrong
>>>> on the setup if you get failing tests, test suite should generally
>>>> pass on the current kernel, or any -stable kernel.
>>>>
>>> I'm attaching log here to this mail. Actually it is one bug but repeated
>>> in different tests, segfaults
>>
>> Your kernel is ancient, and that will surely account from some of the
>> failures you see. A 6.6 stable series from January 2024 is not current
>> by any stretch, should definitely upgrade that. But I don't think this
>> accounts for all the failures seen, it's more likely there's some musl
>> related issue as well which is affecting some of the tests.
> 
> This happens also on 6.14.8-1 asahi kernel on apple m1pro machine.
> I forgot to mention this in previous mail, sorry.

Also on musl, correct?

Guessing it must be some musl oddity. I'll try and setup a vm with
alpine and see how that goes.

-- 
Jens Axboe