https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62100
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|WAITING |UNCONFIRMED Ever confirmed|1 |0 --- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Peter A. Bigot from comment #4) > But one difference is that I'm using -std=c++1y (and sometimes -std=c++11). > Would that be enough to be an ABI change? No, it shouldn't be (if it is then it's a bug that needs to be fixed). I agree nothing looks suspicious in that output. If the separately-built libstdc++ uses different configuration that would be a problem, but it's not possible to tell from that output.