Bug#905767: emacs25: FTBFS due to test failures on arm64 in a binNMU against new version of libmagick

[Niels Thykier]

Package: emacs25
Version: 25.2+1-6+b3
Severity: serious
Tags: ftbfs
Justification: fails to build from source

Hi,

The latest binNMU of emacs25 on arm64 FTBFS due to the following test failure:

"""
[...]
   passed  35/37  eieio-test-35-named-object
   passed  36/37  eieio-test-36-build-class-alist
Test eieio-test-37-obsolete-name-in-constructor backtrace:
  #[nil "\304\305\306!\307D\310\311\312\216\313     \"\211)\204\31
  ert--run-test-internal([cl-struct-ert--test-execution-info [cl-struc
  ert-run-test([cl-struct-ert-test eieio-test-37-obsolete-name-in-cons
  ert-run-or-rerun-test([cl-struct-ert--stats (not (tag :expensive-tes
  ert-run-tests((not (tag :expensive-test)) #[385 "\306\307\"\203G\2
  ert-run-tests-batch((not (tag :expensive-test)))
  ert-run-tests-batch-and-exit((not (tag :expensive-test)))
  eval((ert-run-tests-batch-and-exit (quote (not (tag :expensive-test)
  command-line-1(("-L" ":/<<BUILDDIR>>/emacs25-25.2+1/debian/b
  command-line()
  normal-top-level()
Test eieio-test-37-obsolete-name-in-constructor condition:
    (ert-test-failed
     ((should
       (equal
        (eieio--testing "toto")
        '...))
      :form
      (equal
       [eieio-class-tag--eieio--testing]
       ("toto" 2))
      :value nil :explanation
      (different-types
       [eieio-class-tag--eieio--testing]
       ("toto" 2))))
   FAILED  37/37  eieio-test-37-obsolete-name-in-constructor

Ran 37 tests, 36 results as expected, 1 unexpected (2018-07-18 08:49:03+0000)

1 unexpected results:
   FAILED  eieio-test-37-obsolete-name-in-constructor

ERROR: eieio-tests.log
"""

Thanks,
~Niels