emulators/qemu31: unbreak with libglvnd >= 1.3.4
In file included from ui/egl-helpers.c:21:
include/ui/egl-helpers.h:46:55: error: unknown type name 'Window'
EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win);
^
ui/egl-helpers.c:276:55: error: unknown type name 'Window'
EGLSurface qemu_egl_init_surface_x11(EGLContext ectx, Window win)
^
PR: 258269
Reported by: antoine (via exp-run)