cairo: disable X for all plaforms except linux
cairo: disable X for all plaforms except linux

BigBrother-International/gst-cerbero,shoreflyer/cerbero,ikonst/cerbero,AlertMe/cerbero,shoreflyer/cerbero,GStreamer/cerbero,justinjoy/cerbero,GStreamer/cerbero,superdump/cerbero,cee1/cerbero-mac,sdroege/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,flexVDI/cerbero,ylatuya/cerbero,davibe/cerbero,sdroege/cerbero,fluendo/cerbero,BigBrother-International/gst-cerbero,brion/cerbero,justinjoy/cerbero,nzjrs/cerbero,brion/cerbero,centricular/cerbero,ikonst/cerbero,ramaxlo/cerbero,ford-prefect/cerbero,flexVDI/cerbero,davibe/cerbero,ikonst/cerbero,GStreamer/cerbero,jackjansen/cerbero-2013,GStreamer/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,centricular/cerbero,ford-prefect/cerbero,nzjrs/cerbero,fluendo/cerbero,AlertMe/cerbero,jackjansen/cerbero,sdroege/cerbero,superdump/cerbero,davibe/cerbero,centricular/cerbero,shoreflyer/cerbero,lubosz/cerbero,atsushieno/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,brion/cerbero,BigBrother-International/gst-cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,ramaxlo/cerbero,nirbheek/cerbero-old,shoreflyer/cerbero,ramaxlo/cerbero,brion/cerbero,nzjrs/cerbero,nirbheek/cerbero-old,jackjansen/cerbero-2013,lubosz/cerbero,OptoFidelity/cerbero,sdroege/cerbero,sdroege/cerbero,OptoFidelity/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,EricssonResearch/cerbero,centricular/cerbero,justinjoy/cerbero,atsushieno/cerbero,EricssonResearch/cerbero,atsushieno/cerbero,ramaxlo/cerbero,BigBrother-International/gst-cerbero,ford-prefect/cerbero,jackjansen/cerbero,justinjoy/cerbero,nirbheek/cerbero,AlertMe/cerbero,centricular/cerbero,freedesktop-unofficial-mirror/gstreamer-sdk__cerbero,fluendo/cerbero,lubosz/cerbero,shoreflyer/cerbero,flexVDI/cerbero,fluendo/cerbero,ramaxlo/cerbero,nirbheek/cerbero,ylatuya/cerbero,ford-prefect/cerbero,AlertMe/cerbero,multipath-rtp/cerbero,BigBrother-International/gst-cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,cee1/cerbero-mac,superdump/cerbero,jackjansen/cerbero-2013,GStreamer/cerbero,cee1/cerbero-mac,jackjansen/cerbero,ikonst/cerbero,nicolewu/cerbero,ylatuya/cerbero,fluendo/cerbero,nicolewu/cerbero,nirbheek/cerbero-old,flexVDI/cerbero,EricssonResearch/cerbero,nirbheek/cerbero,nicolewu/cerbero,EricssonResearch/cerbero,atsushieno/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,AlertMe/cerbero,OptoFidelity/cerbero,multipath-rtp/cerbero,flexVDI/cerbero,cee1/cerbero-mac,lubosz/cerbero,jackjansen/cerbero,ylatuya/cerbero,brion/cerbero,jackjansen/cerbero-2013,multipath-rtp/cerbero,freedesktop-unofficial-mirror/gstreamer__sdk__cerbero,multipath-rtp/cerbero,atsushieno/cerbero,jackjansen/cerbero-2013,ikonst/cerbero,nzjrs/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,nzjrs/cerbero,EricssonResearch/cerbero,superdump/cerbero,nirbheek/cerbero,davibe/cerbero,nirbheek/cerbero-old,multipath-rtp/cerbero,OptoFidelity/cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero,freedesktop-unofficial-mirror/gstreamer__cerbero