https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87536
Marek Polacek <mpolacek at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #4 from Marek Polacek <mpolacek at gcc dot gnu.org> --- I no longer get any crashes here: $ xg++ -c -std=c++20 87536.C 87536.C:2:6: error: C++20 concept definition syntax is ‘concept <name> = <expr>’ 2 | bool concept X = X<T>; | ^~~~~~~ $ xg++ -c -std=c++17 87536.C -fconcepts-ts cc1plus: note: ‘-fconcepts-ts’ is deprecated and will be removed in GCC 15; please convert your code to C++20 concepts