xwayland: Fix build without glamor
When building Xwayland without glamor support enabled using automake,
the build would fail at link time trying to find glamor_block_handler
:
/usr/bin/ld: xwayland-glx.o: in function egl_drawable_wait_x': hw/xwayland/xwayland-glx.c:102: undefined reference to
glamor_block_handler'
Make sure we don't try to build xwayland-glx.c
without glamor in the
Xwayland Makefile.
Note: Meson build is fine because it's already build only with glamor enabled.
Fixes: commit 84692415 - "xwayland: Add EGL-backed GLX provider" Signed-off-by: Olivier Fourdan ofourdan@redhat.com