merge revision(s) 57763:
fix for mingw64 * util.c: define MINGW_HAS_SECURE_API for qsort_s on recent mingw64.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57922 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
merge revision(s) 57763:
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_2_4@57922 b2dd03c8-39d4-4d8f-98ff-823fe69b080e