[Python-modules-team] Bug#861249: FTBFS: math_test.Vector2TypeTest.test_cross fails

[Aaron M. Ucko]

Source: pygame
Version: 1.9.1release+dfsg-10+b2
Severity: serious
Justification: fails to build from source (but built successfully in the past)

pygame FTBFS on several architectures (arm64, ppc64el, s390x, and the
non-release architectures powerpc and ppc64):

  FAIL: test_cross (pygame.tests.math_test.Vector2TypeTest)
  ----------------------------------------------------------------------
  Traceback (most recent call last):
    File "/<<BUILDDIR>>/pygame-1.9.3+dfsg/.pybuild/pythonX.Y_2.7/build/pygame/tests/math_test.py", line 360, in test_cross
      self.assertEqual(self.v1.cross(self.v1), 0)
  AssertionError: -3.2862601528904633e-16 != 0

On most of these architectures (all but arm64), there were additional
test suite failures, which I'll report separately.  I presume the
non-release architecture powerpcspe would have encountered the same
error if that build hadn't silently skipped the test suite altogether
for some reason.

Could you please take a look?

Thanks!

-- 
Aaron M. Ucko, KB1CJC (amu at alum.mit.edu, ucko at debian.org)
http://www.mit.edu/~amu/ | http://stuff.mit.edu/cgi/finger/?amu@monk.mit.edu