Hello Elena,
I tried to follow your suggestion and I modified the CFLAGS but I still have the following error:
make: *** [sim] Error 2
Is make's generic error response for any sort of error. Somewhere further up should be the actual reason that made the compilation stop.
Could you try and include the information requested on:
http://einsteintoolkit.org/support.html#general-guidelines-for-questions
please?
Yours, Roland