[Bug libstdc++/65942] [5/6 Regression] [C++14] cannot use std::function as comparator in algorithms

[a...@cloudius-systems.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65942

--- Comment #14 from Avi Kivity <a...@cloudius-systems.com> ---
Please consider backporting this to 5.2.