https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81091
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2018-05-04 Ever confirmed|0 |1 --- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> --- I was concerned this would be an ABI change for 32-bit targets, but libstdc++ already ensures that std::streamoff is a 64-bit type even when ::off_t isn't. So now I think building it with large file support should not change the type of anything in the libstdc++ API or the exported ABI.