farsight: Fix linking
farsight: Fix linking

Thanks to shadeslayer for the patch

Reviewed-by: Dario Freddi <13766fedd7fab95772ad5dbaab26aa09796881e8@collabora.com>

TelepathyIM/telepathy-qt,tiagosh/telepathy-qt,TelepathyIM/telepathy-qt,detrout/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,anantkamath/telepathy-qt,TelepathyIM/telepathy-qt,TelepathyQt/telepathy-qt,tiagosh/telepathy-qt,TelepathyQt/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt,TelepathyQt/telepathy-qt,special/telepathy-qt-upstream,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,freedesktop-unofficial-mirror/telepathy__telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,freedesktop-unofficial-mirror/telepathy__telepathy-qt4,anantkamath/telepathy-qt,detrout/telepathy-qt,special/telepathy-qt-upstream,TelepathyQt/telepathy-qt,freedesktop-unofficial-mirror/telepathy__telepathy-qt,detrout/telepathy-qt,tiagosh/telepathy-qt,TelepathyIM/telepathy-qt,TelepathyIM/telepathy-qt,special/telepathy-qt-upstream,anantkamath/telepathy-qt,tiagosh/telepathy-qt