https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78489
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |5.5.0 Summary|Substitution failure does |[6/7/8 Regression] |not happen in lexical order |Substitution failure does |for NTTP declarations. |not happen in lexical order | |for NTTP declarations. Known to fail| |6.4.0, 7.3.0, 8.0.1 --- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- GCC 5.x compiled this without error.