https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82939
Richard Biener <rguenth at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2017-11-13 CC| |rguenth at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #3 from Richard Biener <rguenth at gcc dot gnu.org> --- Hmm, GCC 4.2 as host compiler and using non-standard flags (-Os). Can you try with standard flags? It's probably miscompiling libcpp and/or genmatch.