[Bug c++/65042] gcc5 has a template depth problem that was fine in gcc4

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65042

--- Comment #4 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
What command line options are used?
With explicit -ftemplate-depth=25 (or even 27) it indeed fails, succeeds with
28, but the default is 900 AFAIK.  Have those command line options changed in
any way since the compilation with the older g++?