[Bug c++/59759] internal compiler error: in unify, using std::enable_if on classes

[gereon.kremer at cs dot rwth-aachen.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=59759

--- Comment #6 from Gereon Kremer <gereon.kremer at cs dot rwth-aachen.de> ---
Any news here?

The problem persists with version g++ (GCC) 4.9.1 20140903 (prerelease).