https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108550
--- Comment #6 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
Ah!
Started with
commit dc062b4986328bfeec3ebd744a9c116e28828bf0
Author: Jason Merrill <ja...@redhat.com>
Date: Wed Aug 5 13:56:14 2015 -0400
re PR c++/66260 ([C++14] Failure to compile variable template with
recursively defined partial specialization)
PR c++/66260
PR c++/66596
PR c++/66649
PR c++/66923
* pt.c (lookup_template_variable): Use NULL_TREE for type.
(instantiate_template_1): Also set DECL_TI_ARGS based on
the immediate parent.
(tsubst_copy_and_build) [TEMPLATE_ID_EXPR]: Handle variable
templates.
(finish_template_variable): Add complain parm.
* cp-tree.h: Adjust.
From-SVN: r226642
