OTHER: Make the OSS plugin compile on FreeBSD again, broken by OSS4 patch.
OTHER: Make the OSS plugin compile on FreeBSD again, broken by OSS4 patch.

Thanks to Auke Schrijnen for reporting and testing.

krad-radio/xmms2-krad,theefer/xmms2,oneman/xmms2-oneman-old,mantaraya36/xmms2-mantaraya36,six600110/xmms2,oneman/xmms2-oneman,dreamerc/xmms2,theeternalsw0rd/xmms2,oneman/xmms2-oneman,krad-radio/xmms2-krad,krad-radio/xmms2-krad,oneman/xmms2-oneman-old,oneman/xmms2-oneman,mantaraya36/xmms2-mantaraya36,theefer/xmms2,theeternalsw0rd/xmms2,theeternalsw0rd/xmms2,mantaraya36/xmms2-mantaraya36,dreamerc/xmms2,chrippa/xmms2,oneman/xmms2-oneman,theefer/xmms2,theeternalsw0rd/xmms2,six600110/xmms2,xmms2/xmms2-stable,krad-radio/xmms2-krad,chrippa/xmms2,theefer/xmms2,theeternalsw0rd/xmms2,six600110/xmms2,mantaraya36/xmms2-mantaraya36,theefer/xmms2,xmms2/xmms2-stable,theefer/xmms2,six600110/xmms2,chrippa/xmms2,xmms2/xmms2-stable,theefer/xmms2,chrippa/xmms2,krad-radio/xmms2-krad,oneman/xmms2-oneman,xmms2/xmms2-stable,oneman/xmms2-oneman-old,xmms2/xmms2-stable,krad-radio/xmms2-krad,mantaraya36/xmms2-mantaraya36,six600110/xmms2,oneman/xmms2-oneman-old,chrippa/xmms2,dreamerc/xmms2,mantaraya36/xmms2-mantaraya36,dreamerc/xmms2,six600110/xmms2,theeternalsw0rd/xmms2,xmms2/xmms2-stable,mantaraya36/xmms2-mantaraya36,dreamerc/xmms2,oneman/xmms2-oneman-old,oneman/xmms2-oneman,oneman/xmms2-oneman,chrippa/xmms2