[Bug bootstrap/66521] xgcc: cc1plus segfaults when compiling libstdc++-v3/src/c++11/ostream-inst.cc

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66521

--- Comment #7 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Eric Gallager from comment #5)
> this one; I think I had to pass the '--disable-libstdcxx-filesystem-ts' flag
> to configure last time to get past it... I'll open a new PR about it.

Please do, I'm planning to backport the Filesystem TS for GCC 5.3 so if it
breaks the bootstrap on darwin I'd like to know the details.