Joaking [1] filed a orphan request for bcc [2]:
This is out of date, it's in version 0.3.0 and now is available
v0.5.0. Furthermore, the new maintainer adopted it and don't fix any
of the problems of this pkgbuild(he didn't commit nothing).
[1] https://aur.archlinux.org/account/Joaking/
[2] https://aur.archlinux.org/pkgbase/bcc/