[DRE-maint] Bug#795663: ruby-timecop: FTBFS under some timezones

[Chris Lamb]

Source: ruby-timecop
Version: 0.7.3-1
Severity: serious
Tags: patch
Justification: fails to build from source

Dear Maintainer,

ruby-timecop fails to build from source on unstable/amd64 under some
timezones (eg. TZ="/usr/share/zoneinfo/Etc/GMT+12"):

  [..]
  ┌──────────────────────────────────────────────────────────────────────────────┐
  │ Run tests for ruby2.1 from debian/ruby-tests.rb                     
          │
  └──────────────────────────────────────────────────────────────────────────────┘
  
  RUBYLIB=/tmp/buildd/ruby-timecop-0.7.3/debian/ruby-timecop/usr/lib/ruby/vendor_ruby:.
  ruby2.1 debian/ruby-tests.rb
  ./test/timecop_without_date_but_with_time_test.rb
  MiniTest::Unit::TestCase is now Minitest::Test. From
  ./test/timecop_without_date_but_with_time_test.rb:3:in `<main>'
  Run options: --seed 23950
  
  # Running:
  
  .
  
  Finished in 0.019255s, 51.9351 runs/s, 0.0000 assertions/s.
  
  1 runs, 0 assertions, 0 failures, 0 errors, 0 skips
  ./test/time_stack_item_test.rb
  MiniTest::Unit::TestCase is now Minitest::Test. From
  ./test/time_stack_item_test.rb:7:in `<main>'
  Run options: --seed 64273
  
  # Running:
  
  ..F.........................
  
  Finished in 0.085731s, 326.6023 runs/s, 816.5057 assertions/s.
  
    1) Failure:
  TestTimeStackItem#test_timezones_apply_dates
  [./test/time_stack_item_test.rb:187]:
  Expected: Thu, 03 Jan 2013
    Actual: Wed, 02 Jan 2013
  
  28 runs, 70 assertions, 1 failures, 0 errors, 0 skips
  debian/ruby-tests.rb:3:in `block in <main>': unhandled exception
  	from debian/ruby-tests.rb:1:in `each'
  	from debian/ruby-tests.rb:1:in `<main>'
  ERROR: Test "ruby2.1" failed. Exiting.
  dh_auto_install: dh_ruby --install
  /tmp/buildd/ruby-timecop-0.7.3/debian/ruby-timecop returned exit code
  1
  debian/rules:4: recipe for target 'binary' failed
  make: *** [binary] Error 1
  dpkg-buildpackage: error: fakeroot debian/rules binary gave error exit
  status 2

  [..]

The full build log is attached or can be viewed here:

  https://reproducible.debian.net/logs/unstable/amd64/ruby-timecop_0.7.3-1.build1.log.gz

Adding `export TZ=UTC` to debian/rules fixes this for me.


Regards,

-- 
      ,''`.
     : :'  :     Chris Lamb
     `. `'`      lamby at debian.org / chris-lamb.co.uk
       `-
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