[ruby-cvs:66679] nagachika:r59501 (ruby_2_4): merge revision(s) 58287: [Backport #13411]

[nagachika at ruby-lang.org]

nagachika	2017-08-04 23:39:29 +0900 (Fri, 04 Aug 2017)

  New Revision: 59501

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=59501

  Log:
    merge revision(s) 58287: [Backport #13411]
    
    configure.in: rpath with OPTDIR
    
    * configure.in: add rpath flags which is needed for OPTDIR as well
      as -L options, when it is given.  [ruby-dev:50065] [Bug #13411]

  Modified directories:
    branches/ruby_2_4/
  Modified files:
    branches/ruby_2_4/configure.in
    branches/ruby_2_4/version.h