Bug#983169: ensmallen FTBFS on several architectures: test failure

[Adrian Bunk]

Source: ensmallen
Version: 2.16.0-1
Severity: serious
Tags: ftbfs

https://buildd.debian.org/status/package.php?p=ensmallen

...
Running tests...
/usr/bin/ctest --force-new-ctest-process -j8
Test project /<<PKGBUILDDIR>>/obj-aarch64-linux-gnu
    Start 1: ensmallen_tests
1/1 Test #1: ensmallen_tests ..................***Failed  486.69 sec
ensmallen version: 2.16.0 (Severely Dented Can Of Polyurethane)
armadillo version: 10.1.2 (Orchid Ambush)

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
ensmallen_tests is a Catch v2.4.1 host application.
Run with -? for options

-------------------------------------------------------------------------------
AdamSchafferFunctionN2Test
-------------------------------------------------------------------------------
./tests/adam_test.cpp:331
...............................................................................

./tests/test_function_tools.hpp:114: FAILED:
  REQUIRE( objective == Approx(expectedObjective).margin(objectiveMargin) )
with expansion:
  0.4988660447 == Approx( 0.0 )

===============================================================================
test cases:   274 |   273 passed | 1 failed
assertions: 13331 | 13330 passed | 1 failed



0% tests passed, 1 tests failed out of 1

Total Test time (real) = 486.69 sec

The following tests FAILED:
	  1 - ensmallen_tests (Failed)
Errors while running CTest
make[2]: *** [Makefile:119: test] Error 8