[Bug c++/56208] [4.8 Regression] Some classic sfinae cases fail to work

[daniel.kruegler at googlemail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56208

--- Comment #5 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2013-02-05 06:37:06 UTC ---
I think I found the problem, the root is actually not related to sfinae
(fortunately), but to the way how name-lookup in classes work in gcc. The
problem can be fixed (as a workaround), if we move the static member function

template<class T>
static T make();

into namespace scope (as non-member function). I apologize for the lengthy
thread within this issue. But it nonetheless is a regression, because that
name-lookup worked correctly in previous versions of gcc.