SDL2 WAYLAND_xkb_context_new crash

Hello,
I try to run an application on archlinux arm (weston 2.0.0, wayland) build with SDL2 (tried 2.0.5 or 2.0.10).
I get a segmentation fault in line 422 of SDL_waylandvideo.c.
In function Wayland_VideoInit(_THIS) call WAYLAND_xkb_context_new(0) failed somehow.
I have no idea how to track down this problem.