[ruby-cvs:61547] naruse:r54385 (ruby_2_3): merge revision(s) 54003: [Backport #12153]

[naruse at ruby-lang.org]

naruse	2016-03-29 17:03:45 +0900 (Tue, 29 Mar 2016)

  New Revision: 54385

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=54385

  Log:
    merge revision(s) 54003: [Backport #12153]
    
    * test/-ext-/float/test_nextafter.rb: In AIX,
      nextafter(+0.0,-0.0)=+0.0, and nextafter(-0.0,+0.0)=-0.0,
      but they should return -0.0 and +0.0, respectively. This is
      a known bug in nextafter(3) on AIX, so skip related tests.

  Modified directories:
    branches/ruby_2_3/
  Modified files:
    branches/ruby_2_3/ChangeLog
    branches/ruby_2_3/test/-ext-/float/test_nextafter.rb
    branches/ruby_2_3/version.h