http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42792
Andrew Pinski <pinskia at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |WORKSFORME --- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-28 19:14:37 UTC --- The only time tree_check_failed is used is when ENABLE_TREE_CHECKING is defined. I don't know why this fails for you but it works for many other people. Maybe one of the system headers define ENABLE_TREE_CHECKING. Since this works for many other people and this is the only bug report about this failure, I am going to close this as worksforme.