https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67273
lh_mouse <lh_mouse at 126 dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |lh_mouse at 126 dot com --- Comment #1 from lh_mouse <lh_mouse at 126 dot com> --- Not very sure whether it is related to this one: struct foo { template<typename F> void iterate(F f){ int i = 1; f(i); } void kick(){ iterate([&](auto i){ }); } }; Replacing `auto` with `int` gets rid of the warning.