[ruby-cvs:58701] nagachika:r51553 (ruby_2_2): merge revision(s) 50104, 50105: [Backport #10906]

[nagachika at ruby-lang.org]

nagachika	2015-08-12 23:58:06 +0900 (Wed, 12 Aug 2015)

  New Revision: 51553

  http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=51553

  Log:
    merge revision(s) 50104,50105: [Backport #10906]
    
    * ext/date/extconf.rb: try_cflags("-std=iso9899:1999") [Bug #10906]
      ruby itself (including numeric.c) is built with strict compile
      options including -std=iso9899:1999, but ext/date is not.
      By the way -std=iso9899:1999 is not only a warning option but also
      changes behavior like MACRO definitions for example INFINITY.
      gcc on Solaris affect this.

  Modified directories:
    branches/ruby_2_2/
  Modified files:
    branches/ruby_2_2/ChangeLog
    branches/ruby_2_2/ext/date/extconf.rb
    branches/ruby_2_2/version.h