Fix static-linked-ext encodings
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55434 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Fix static-linked-ext encodings
different than ENCOBJS, to get rid of circular dependency.
build libencs when linking encodings statically.
[ruby-core:75618] [Bug #12401]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55434 b2dd03c8-39d4-4d8f-98ff-823fe69b080e