https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92909
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The releases/gcc-9 branch has been updated by Jason Merrill <ja...@gcc.gnu.org>: https://gcc.gnu.org/g:c3747bca3849b1e06358db9cb2389d8089c49e3e commit r9-8379-gc3747bca3849b1e06358db9cb2389d8089c49e3e Author: Jason Merrill <ja...@redhat.com> Date: Sat Mar 14 17:10:39 2020 -0400 c++: Find parameter pack in typedef in lambda [92909]. find_parameter_packs_r doesn't look through typedefs, which is normally correct, but that means we need to handle their declarations specially. gcc/cp/ChangeLog 2020-03-14 Jason Merrill <ja...@redhat.com> PR c++/92909 * pt.c (find_parameter_packs_r): [DECL_EXPR]: Walk DECL_ORIGINAL_TYPE of a typedef.
