match (linkage, visibility) {
(RLinkage::External, Visibility::Default) => Linkage::Export,
(RLinkage::Internal, Visibility::Default) => Linkage::Local,
match (linkage, visibility) {
(RLinkage::External, Visibility::Default) => Linkage::Export,
(RLinkage::Internal, Visibility::Default) => Linkage::Local,