gmp: force build of shared libraries on Windows
gmp: force build of shared libraries on Windows

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