* tests/conform/test-conform-main.c (main): Do not run the
conformance test suite if we are on X11 but we do not have
a DISPLAY available. Some of the tests require a DISPLAY,
and everything passes through a clutter_init() call which will
fail anyway. If we are running make distcheck on an headless
box we might as well just skip the conformance test suite
without a meaningless error.
ab9464b33d