[Bug bootstrap/86739] [9 Regression] Bootstrap broken with host GCC 4.1.2

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86739

--- Comment #4 from Jonathan Wakely <redi at gcc dot gnu.org> ---
See PR 7412

"Fixed on mainline for GCC 4.3.0. DR 106 is implemented for C++0x mode and for
non-strict C++98 mode."