http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55163
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2013-02-20 Ever Confirmed|0 |1 --- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> 2013-02-20 14:05:37 UTC --- Note that this is your host C++ compiler complaining - GCC now needs a C++ compiler to build. What version is your host compiler? It looks like there is a mismatch of the hosts flex / g++ expectations about line-endings (though I don't remember that g++ ever cared for that difference for me ...). What's your LANG/LC_* environment? Maybe you confuse GCCs input character set somehow.