Bug#789826: ignition-math2: FTBFS: test suite fails on some platforms

[Aaron M. Ucko]

Source: ignition-math2
Version: 2.1.1+dfsg1-1
Severity: important

Builds of ignition-math2 wound up failing with test suite errors on a
few platforms:

* On i386 with any kernel (Linux, FreeBSD, or the Hurd),
  UNIT_Line2_TEST fails:

    [ RUN      ] Line2Test.CollinearPoint
    /«BUILDDIR»/ignition-math2-2.1.1+dfsg1/src/Line2_TEST.cc:150: Failure
    Value of: lineA.Collinear(pt, 1e-4)
      Actual: false
    Expected: true
    /«BUILDDIR»/ignition-math2-2.1.1+dfsg1/src/Line2_TEST.cc:162: Failure
    Value of: lineA.Collinear(pt, 1e-4)
      Actual: false
    Expected: true
    [  FAILED  ] Line2Test.CollinearPoint (0 ms)

* On both armel and mips, some check_UNIT_*_TEST commands failed -- it
  looks like the test suite ran in parallel, and these commands started
  before the corresponding UNIT_*_TEST commands finished.

Could you please take a look?  You can find the full logs at

https://buildd.debian.org/status/logs.php?pkg=ignition-math2&ver=2.1.1%2Bdfsg1-1

Thanks!