GNU bug report logs - #50567
[core-updates-frozen] icedtea-6 fails to build.

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Message #13 received at 50567-done <at> debbugs.gnu.org (full text, mbox):

From: Guillaume Le Vaillant <glv <at> posteo.net>
To: Ludovic Courtès <ludo <at> gnu.org>
Cc: 50567-done <at> debbugs.gnu.org, Julien Lepiller <julien <at> lepiller.eu>
Subject: Re: bug#50567: [core-updates-frozen] icedtea-6 fails to build.
Date: Tue, 14 Sep 2021 16:25:26 +0000

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Ludovic Courtès <ludo <at> gnu.org> skribis:

> Hi Guillaume,
>
> Guillaume Le Vaillant <glv <at> posteo.net> skribis:
>
>> I'm trying to get icedtea-6 to build on the core-updates-frozen branch.
>> I fixed a few C/C++ related issues,
>
> Thanks for fixing those!  After <https://issues.guix.gnu.org/49990#10>
> Julien mentioned on IRC that using an older GCC allowed us to work
> around those C++ issues, but your approach looks nicer to me.
>
>> but then I get this error:
>>
>> Preload failed: checksum of class list was incorrect.
>> make: *** [Makefile:2746: stamps/add-archive-ecj.stamp] Error 1
>
> Woow, never seen that.  Julien, Ricardo, does that ring a bell?
>
> Java is the main stumbling block on core-updates-frozen; making
> progress!
>
> Thanks,
> Ludo’.

It looks like the checksum failure is caused by the miscompilation of
a multiplication in the function computing the checksum.
I added a workaround to the other fixes in
f8cff361245cc0c546211ff51100cbaf869d15eb, which makes the build succeed.

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