merge revision(s) 36138: [Backport #6607]
* include/ruby/backward/rubysig.h: fix visibility. [Bug #6607]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@38315 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 36138: [Backport #6607]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_3@38315 b2dd03c8-39d4-4d8f-98ff-823fe69b080e