https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98810
Christophe Lyon <clyon at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |clyon at gcc dot gnu.org --- Comment #7 from Christophe Lyon <clyon at gcc dot gnu.org> --- Hi, the backport in gcc-9 branch is causing errors: ERROR: g++.dg/cpp2a/nontype-class-defarg1.C -std=c++14: syntax error in target selector "target c++20" for " dg-do 2 compile { target c++20 } "