I have much respect for Paul's work, as well for the TU (trusted users) guys.
It's up to the TU to decide the future of this package, not me.
Until then I added the following post_install and post_update:
echo ">>>
----------------------------------------WARNING----------------------------------------"
echo ">>> This is not an official ardour or arch package, as most of
AUR users already know. "
echo ">>> Please if you really want to try this svn snapshot, make
sure you update it frequently"
echo ">>> and that you are capable of providing useful debug
information for the developers."
echo ">>>"
echo ">>> From the main developer as of 2010/12: "
echo ">>> we have not asked (and are not asking) for people not"
echo ">>> comfortable with debuggers and other tracing tools to "
echo ">>> be using ardour3 at this time."
echo ">>>"
echo ">>> The authors also recomend that Arch users DO NOT use this
PKGBUILD"
echo ">>> and instead make all the steps using svn and 'svn
update'."
echo ">>>
----------------------------------------------------------------------------------------"