thanks friends, but: I have cwiid lib up to date : cwiid-0.6.00-12 headers files seems be ok: [...] Checking for header cwiid.h : yes Checking for header bluetooth/bluetooth.h : yes Checking for 'cwiid' >= 0.6.00 : not found The configuration failed (complete log in /home/paum/AUR/ardour3-svn/src/ardour3-build/build/config.log) ==> ERROR: A failure occurred in build(). Aborting... that is what I dont understand.. fero