[Bug libstdc++/60594] [4.8/4.9 Regression] std::function of a type with a declared (but not defined) return type fails to compile

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60594

--- Comment #10 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Author: redi
Date: Tue May  6 11:45:14 2014
New Revision: 210103

URL: http://gcc.gnu.org/viewcvs?rev=210103&root=gcc&view=rev
Log:
Backport libstdc++/60594 fix from mainline.

    PR libstdc++/60594
    * include/std/functional (function::_Callable): Exclude own type
    from the callable checks.
    * testsuite/20_util/function/60594.cc: New.

Added:
    branches/gcc-4_9-branch/libstdc++-v3/testsuite/20_util/function/60594.cc
Modified:
    branches/gcc-4_9-branch/libstdc++-v3/ChangeLog
    branches/gcc-4_9-branch/libstdc++-v3/include/std/functional