Weird compiler behavior from lemon-generated parser

I am trying to learn how to use the Lemon parser generator, and I built a learning project. However, when I try to compile the sources, I get some strange errors from GCC. It looks like there could be some text transcribing problem or typo, but I can't find it. Being the files and output quite long I zipped and attached the whole folder. I am compiling using the C++11 standard. The file "log" contains the compiler output. Hope some of you could help me out on this. Here is the project