[ruby-cvs:70488] ngoto:r63398 (trunk): mkmf.rb: set cppflags

[ngoto at ruby-lang.org]

ngoto	2018-05-12 00:46:21 +0900 (Sat, 12 May 2018)

  New Revision: 63398

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=63398

  Log:
    mkmf.rb: set cppflags
    
    * ext/mkmf.rb (configuration): set the default cppflags, which is
      referred from the default CPPFLAGS, for extension libraries.
      This fixes build failure of ext/zlib on Solaris 10.
      [Bug #14746] [ruby-dev:50539]

  Modified files:
    trunk/lib/mkmf.rb