see 90d21559 for boost fix and
see effe6b3d for bridges fix for mac

Change-Id: Ic6209ce0927dafd39763ef0b2fabbcaa7abf743f
Reviewed-on: https://gerrit.libreoffice.org/46002Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>
Tested-by: Jenkins <ci@libreoffice.org>