https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97876
--- Comment #10 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-10 branch has been updated by Jonathan Wakely <r...@gcc.gnu.org>: https://gcc.gnu.org/g:a186d72afd6cfb13efd4a0ec82049d79892334fd commit r10-9056-ga186d72afd6cfb13efd4a0ec82049d79892334fd Author: Jonathan Wakely <jwak...@redhat.com> Date: Thu Nov 19 22:32:54 2020 +0000 libstdc++: Fix compilation error with clang-8 [PR 97876] This fixes a compilation error with clang-8 and earlier. This change is only on the gcc-10 branch, not master, because the <stop_token> header is included indirectly in more places on the branch than on master. PR libstdc++/97876 * include/std/stop_token (_Stop_state_t): Define default constructor as user-provided not defaulted.