Build failure: python3 cross

[flokli]

python3: 3.11.9 -> 3.12.4 (737b5cd) regressed cross compilation for python3.

Steps To Reproduce

Steps to reproduce the behavior:

1. nix-build -A pkgsCross.aarch64-multiplatform.python3

Build log

error: builder for '/nix/store/01a9nj8xa7ly11amy2riigp7p318pm4m-python3-aarch64-unknown-linux-gnu-3.12.4.drv' failed with exit code 1;
       last 10 log lines:
       > In file included from ./Include/internal/pycore_object.h:13,
       >                  from Objects/cellobject.c:4:
       > ./Include/internal/pycore_interp.h:193:24: error: field 'dtoa' has incomplete type
       >   193 |     struct _dtoa_state dtoa;
       >       |                        ^~~~
       > make: *** [Makefile:2737: Objects/abstract.o] Error 1
       > make: *** [Makefile:2737: Parser/tokenizer.o] Error 1
       > make: *** [Makefile:2737: Objects/bytesobject.o] Error 1
       > make: *** [Makefile:2737: Objects/cellobject.o] Error 1
       > make: *** [Makefile:2737: Objects/bytearrayobject.o] Error 1
       For full logs, run 'nix log /nix/store/01a9nj8xa7ly11amy2riigp7p318pm4m-python3-aarch64-unknown-linux-gnu-3.12.4.drv'.

Additional context

737b5cd4f2f0113727312a12b4dfceee877a88c3 is the first bad commit
commit 737b5cd4f2f0113727312a12b4dfceee877a88c3
Author: Martin Weinelt <[email protected]>
Date:   Wed Jun 19 04:03:40 2024 +0200

    python3: 3.11.9 -> 3.12.4
    
    As per our documented update schedule, we'll default to Python 3.12 in
    the 24.11 release cycle, while recursing into both 3.11 and 3.12.

 pkgs/development/interpreters/python/default.nix | 30 +++++++++++++++---------------
 pkgs/top-level/all-packages.nix                  |  4 ++--
 2 files changed, 17 insertions(+), 17 deletions(-)
❯ git bisect log
git bisect start
# status: waiting for both good and bad commits
# good: [cbe5cf5d81dee7911aa8f88f143889f2abeae871] buildRustCrate: don't swallow build.rs output
git bisect good cbe5cf5d81dee7911aa8f88f143889f2abeae871
# status: waiting for bad commit, 1 good commit known
# bad: [79316737d60c607c023eb5a68526d9a560229fd4] Merge pull request #325011 from r-ryantm/auto-update/dkimpy
git bisect bad 79316737d60c607c023eb5a68526d9a560229fd4
# bad: [b9ebc70b93c7bcc81000d2214768079225e9224a] python312Packages.python-kasa: 0.6.2.1 -> 0.7.0.2
git bisect bad b9ebc70b93c7bcc81000d2214768079225e9224a
# bad: [43c7c50717602d54f82ecc579ade0287241a4b16] python3Packages.deepdiff: 6.7.1 -> 7.0.1
git bisect bad 43c7c50717602d54f82ecc579ade0287241a4b16
# good: [f822b2ba5c97189cd5cfcf6364dbf5318cfcba27] Merge remote-tracking branch 'origin/staging-next' into staging
git bisect good f822b2ba5c97189cd5cfcf6364dbf5318cfcba27
# good: [ae3742c661e9f6067f11295fdc09714494777c58] Merge pull request #315740 from mweinelt/xz-5.6.2
git bisect good ae3742c661e9f6067f11295fdc09714494777c58
# bad: [520dca3b6eefe88a02f0af4752b809399c7bb2f8] python3Packages.awslambdaric: 2.0.10 -> 2.0.11
git bisect bad 520dca3b6eefe88a02f0af4752b809399c7bb2f8
# bad: [e4676179b3325ef268d63789d60522acee78428d] python311Packages.pluggy: 1.4.0 -> 1.5.0
git bisect bad e4676179b3325ef268d63789d60522acee78428d
# good: [12df9ba6c373c7b864683904adc585acf98dddaa] Merge #321340: gcc12: 12.3.0 -> 12.4.0
git bisect good 12df9ba6c373c7b864683904adc585acf98dddaa
# good: [1abd769c912f7d7196d662f80887f9e1bcf0f1d5] Merge #320434: nettle: 3.9.1 -> 3.10
git bisect good 1abd769c912f7d7196d662f80887f9e1bcf0f1d5
# bad: [737b5cd4f2f0113727312a12b4dfceee877a88c3] python3: 3.11.9 -> 3.12.4
git bisect bad 737b5cd4f2f0113727312a12b4dfceee877a88c3
# good: [2ae2c768200fc23b00565be98d2001e1cc9ef7ff] Merge #316547: findutils: 4.9.0 -> 4.10.0
git bisect good 2ae2c768200fc23b00565be98d2001e1cc9ef7ff
# good: [1766c845a88dd9d4f303b8c1f639e9f2ac2aa4a2] Merge #318438: xkeyboard_config: 2.41 -> 2.42
git bisect good 1766c845a88dd9d4f303b8c1f639e9f2ac2aa4a2
# first bad commit: [737b5cd4f2f0113727312a12b4dfceee877a88c3] python3: 3.11.9 -> 3.12.4

Notify maintainers

@mweinelt @Artturin @FRidh

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[yu-re-ka]

python/cpython#121178

[flokli]

preparing a PR.