Hello, thanks for responses! I've tried to add "-lc++" to "cmake_linker_flags", but I have the same issue. If I use another version of darwin I get only 1 linker error "Library not found -llex" (even with WITH_C11) The build log that I had and still have: http://hastebin.com/arohoyinuf.rb Thanks -- Best regards Valentin Rueda