$ export CXX=clang++
$ meson setup _build
$ meson compile -C _build
[...]
In file included from ../dbus_interface.cpp:43:
../dbus_interface_backend.cpp:1116:34: error: 'core' cannot be captured because it does not have automatic storage duration
idle_call->run_once([core, idle_call] ()
^
../dbus_interface_backend.cpp:51:24: note: 'core' declared here
wf::compositor_core_t& core = wf::get_core();
^