run 'timeout make check' from pqm?

[Martin Pool]

There is a utility in Ubuntu called timeout that runs a process and
kills it after n seconds.  Maybe we should run the tests under pqm
through this to guard against the occasional cases where the tests
hang?  I think it would be better to tell pqm to use it rather than
putting it into the makefile and causing trouble on machines that
don't have it.

  timeout 3600 make check

-- 
Martin