https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82033
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Sam Thursfield from comment #0) > This builds fine using `g++ -std=c++11 -pthread`. *Unless* you built the > compiler with `--disable-bootstrap`. In that case, it fails: Don't do that then? What compiler is used for the stage-1 build? If it's GCC, what does 'gcc -v' show?