https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89358
Martin Liška <marxin at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |fdumont at gcc dot gnu.org Known to work| |6.4.0 Summary|Combining -std=c++14 and |[7/8/9 Regression] |-std=c++17 objects gives |Combining -std=c++14 and |ODR warnings |-std=c++17 objects gives | |ODR warnings Known to fail| |7.3.0, 8.2.0, 9.0 --- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> --- I see it starting with r243379, would it be possible culprit of that?