Fix compile error on debian8 and gentoo
https://rubyci.org/logs/rubyci.s3.amazonaws.com/debian8/ruby-trunk/log/20180711T213004Z.log.html.gz#miniruby https://rubyci.org/logs/rubyci.s3.amazonaws.com/gentoo/ruby-trunk/log/20180711T213003Z.log.html.gz#miniruby
./include/ruby/ruby.h:2213:49: error: missing binary operator before token "(" # if defined(__has_attribute) && __has_attribute(diagnose_if) ^
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63958 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix compile error on debian8 and gentoo
https://rubyci.org/logs/rubyci.s3.amazonaws.com/debian8/ruby-trunk/log/20180711T213004Z.log.html.gz#miniruby
https://rubyci.org/logs/rubyci.s3.amazonaws.com/gentoo/ruby-trunk/log/20180711T213003Z.log.html.gz#miniruby
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63958 b2dd03c8-39d4-4d8f-98ff-823fe69b080e