[DRE-maint] Bug#796511: ruby-taglib2: FTBFS on powerpc

[Christian Hofstaedtler]

Package: ruby-taglib2
Version: 0.1.5-2
Severity: serious
Justification: fails to build from source (but built successfully in the past)

Dear Maintainer,

your package ruby-taglib2 fails to build from from source on powerpc
(and other archs, but it has never built there).

Relevant snippet from the buildd log:

https://buildd.debian.org/status/fetch.php?pkg=ruby-taglib2&arch=powerpc&ver=0.1.5-2%2Bb5&stamp=1435042146

  1) Failure:
TagLibFileTest#test_write [/«PKGBUILDDIR»/tests/file.rb:69]:
Expected: "title"
  Actual: "Title"

21 runs, 33 assertions, 1 failures, 0 errors, 0 skips
ERROR: Test "ruby2.1" failed. Exiting.
dh_auto_install: dh_ruby --install /«PKGBUILDDIR»/debian/ruby-taglib2 returned exit code 1


It fails similaryly on mipsel:
https://buildd.debian.org/status/fetch.php?pkg=ruby-taglib2&arch=mipsel&ver=0.1.5-2%2Bb5&stamp=1435055649
And ppc64el:
https://buildd.debian.org/status/fetch.php?pkg=ruby-taglib2&arch=ppc64el&ver=0.1.5-2&stamp=1438303400

Best,
Christian