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bug#24841: closed (Cross-building bootstrap binaries fail in current mas

From: GNU bug Tracking System
Subject: bug#24841: closed (Cross-building bootstrap binaries fail in current master)
Date: Fri, 30 Jul 2021 06:44:01 +0000

Your message dated Thu, 29 Jul 2021 23:43:01 -0700
with message-id <87im0si9oq.fsf@gmail.com>
and subject line close 24841
has caused the debbugs.gnu.org bug report #24841,
regarding Cross-building bootstrap binaries fail in current master
to be marked as done.

(If you believe you have received this mail in error, please contact

24841: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=24841
GNU Bug Tracking System
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--- Begin Message --- Subject: Re: Cross-building bootstrap binaries fail in current master Date: Mon, 31 Oct 2016 22:59:02 +0100 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux)
Hi Carlos,

csanchezdll@gmail.com (Carlos Sánchez de La Lama) skribis:

>> Regardless, cross-building ‘bootstrap-tarballs’ to one of the supported
>> target triplets works on master:
>> --8<---------------cut here---------------start------------->8---
>> $ ./pre-inst-env guix build bootstrap-tarballs --target=mips64el-linux-gnu -n
>> substitute: updating list of substitutes from 
>> 'https://mirror.hydra.gnu.org'... 100.0%
>> The following files would be downloaded:
>>    /gnu/store/lwn9v9jhsllffpc3d4kii8bldw4hfppa-bootstrap-tarballs-0
>> /gnu/store/6cm18hfwbp8c1mf6wha28f0b0axlcm8k-guile-static-stripped-tarball-2.0.11
>>    /gnu/store/f790i196x1ms2ym13pvbazldzicqv4k9-glibc-stripped-tarball-2.23
>>    /gnu/store/jj007dw6gc31hnn1qq3yz7rz1ai1z0fa-gcc-stripped-tarball-4.9.3
>>    /gnu/store/niqxni4hhjr2wvlabn92z1asqb7xcnsx-static-binaries-tarball-0
>> /gnu/store/pskf0y5q3j5a3k30c0czd2xymwp4224i-binutils-static-stripped-tarball-2.25.1
>> $ git describe
>> v0.11.0-1764-g3ad7dce
>> --8<---------------cut here---------------end--------------->8---
>> See:
>> https://hydra.gnu.org/job/gnu/master/mips64el-linux-gnu.bootstrap-tarballs-0.x86_64-linux
>> https://hydra.gnu.org/job/gnu/master/mips64el-linux-gnuabi64.bootstrap-tarballs-0.x86_64-linux
> For efraim and for myself,
> guix build --target=mips64el-linux-gnu bootrap-tarballs
> got broken with commit
> b9bc6e842066b066ebdf9eaf75d41753598d75b5
> After some digging, I think I have found the root cause. That commit
> introduces a (otherwise fine) replacement for expat, but this triggers a
> problem:
> After package-cross-derivation has (sucesfully) cross-built the
> un-grafted bootstrap-tarballs derivation, it tries to resolve grafts,
> using (bag-grafts), which does:
>   (define target-grafts
>     (if target
>         (let ((->graft (input-cross-graft store target system)))
>           (fold-bag-dependencies (lambda (package grafts)
>                                    (match (->graft package)
>                                      (#f    grafts)
>                                      (graft (cons graft grafts))))
>                                  '()
>                                  bag
>                                  #:native? #f))
> Now, (fold-bag-dependencies) goes trhough *all* the dependencies, down to
> make-boot0. The replacement in expat causes this loop to apply
> (package-cross-derivation) to them, including those which are not
> cross-compilable, at which point building fails (make-boot0).

Indeed, looks like a genuine bug. Cc’ing bug-guix so we can keep track
of it.

> Probably building with --no-grafts is a suitable work-around, or
> cross-building expat beforehand (thus I won't need grafting) but I am
> leaving my store untoched for a while to be able to produce a proper
> fix.

Yeah, I’d suggest using --no-grafts until this is fixed.


--- End Message ---
--- Begin Message --- Subject: close 24841 Date: Thu, 29 Jul 2021 23:43:01 -0700 User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux)

As there has been no more feedback recently, I will now close this bug


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