[ruby-cvs:71192] nobu:r64101 (trunk): reduce LibreSSL warnings

[nobu at ruby-lang.org]

nobu	2018-07-29 17:13:05 +0900 (Sun, 29 Jul 2018)

  New Revision: 64101

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=64101

  Log:
    reduce LibreSSL warnings
    
    * ext/openssl/extconf.rb: LibreSSL headers emit "overriding WinCrypt
      defines" warnings if wincrypt.h has been included (except for
      x509.h) on Windows.  get rid of including the header by defining
      NOCRYPT macro.

  Modified files:
    trunk/ext/openssl/extconf.rb