[Bug c++/48869] [4.5/4.6/4.7 Regression] OpenMP task construct fails to instantiate copy constructor(same as Bug 36523)

[jason at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48869

--- Comment #6 from Jason Merrill <jason at gcc dot gnu.org> 2011-05-04 
17:46:33 UTC ---
I think it would be fine to mark_used the copy ctor in cases where it might or
might not be used.