# Linker doesn't like these unmangled:
# re2::RE2*
__ZN3re23RE2*
__ZNK3re23RE2*
# re2::StringPiece*
__ZN3re211StringPiece*
__ZNK3re211StringPiece*
# operator<<(std::ostream&, re2::StringPiece const&)
__ZlsRSoRKN3re211StringPieceE
# re2::FilteredRE2*
__ZN3re211FilteredRE2*