Bug#1098270: trimesh: Build fails on s390x due to math errors in autopkgtest

Source: trimesh
Version: 4.5.1-3
Severity: normal
X-Debbugs-Cc: [email protected], [email protected]
User: [email protected]
Usertags: s390x

Several unit tests of trimesh are currently failing on s390x due to math
errors:
https://buildd.debian.org/status/fetch.php?pkg=trimesh&arch=s390x&ver=4.5.1-3&stamp=1739446909&raw=0

I'm not familiar with IBM Z, but I suspect the errors may be caused by
endianness issues (possibly in a supporting library).
We currently don't have any other big endian builds to compare with, so it's
unclear if this is the case.

Example output:

/build/reproducible-
path/trimesh-4.5.1/.pybuild/cpython3_3.13/build/tests/test_ply.py:127:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

args = (array([-4.0472194e+16, -2.0552418e-08,  8.8456492e+04, ...,
       -2.9970339e+22, -4.0331457e+16, -4.0331457e+16],
 ...95, 1.091329758947, 1.53650744212 , ...,
       2.356194490192, 0.785398163397, 0.785398163397], shape=(8954,)), 7, '')
kwargs = {}, old_name = 'y', new_name = 'desired'

    @functools.wraps(fun)
    def wrapper(*args, **kwargs):
        for old_name, new_name in zip(old_names, new_names):
            if old_name in kwargs:
                if dep_version:
                    end_version = dep_version.split('.')
                    end_version[1] = str(int(end_version[1]) + 2)
                    end_version = '.'.join(end_version)
                    msg = (f"Use of keyword argument `{old_name}` is "
                           f"deprecated and replaced by `{new_name}`. "
                           f"Support for `{old_name}` will be removed "
                           f"in NumPy {end_version}.")
                    warnings.warn(msg, DeprecationWarning, stacklevel=2)
                if new_name in kwargs:
                    msg = (f"{fun.__name__}() got multiple values for "
                           f"argument now known as `{new_name}`")
                    raise TypeError(msg)
                kwargs[new_name] = kwargs.pop(old_name)
>       return fun(*args, **kwargs)
E       AssertionError:
E       Arrays are not almost equal to 7 decimals
E
E       nan location mismatch:
E        ACTUAL: array([-4.0472194e+16, -2.0552418e-08,  8.8456492e+04, ...,
E              -2.9970339e+22, -4.0331457e+16, -4.0331457e+16],
E             shape=(8954,), dtype='<f4')
E        DESIRED: array([1.5707963, 1.0913298, 1.5365074, ..., 2.3561945,
0.7853982,
E              0.7853982], shape=(8954,))


-- System Information:
Debian Release: trixie/sid
  APT prefers testing
  APT policy: (990, 'testing'), (500, 'unstable-debug'), (500, 'testing-debug'), (500, 'stable'), (300, 'unstable'), (1, 'experimental-debug'), (1, 'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 6.12.12-amd64 (SMP w/4 CPU threads; PREEMPT)
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB:en
Shell: /bin/sh linked to /usr/bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled