https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61362
--- Comment #6 from Thibaut LUTZ <thibaut.lutz at googlemail dot com> --- My previous test cases still fails with 6.0.0 20151012 on linux64. It passes with "-std=c++11". Fails with "-std=c++14", "-std=c++17", "-std=c++1y". Same error: prog.cc: In instantiation of ‘struct S<int>::<lambda()>’: prog.cc:3:29: required from here prog.cc:3:10: internal compiler error: in tsubst_copy, at cp/pt.c:13708 int f{[this](){return 42;}()};