[Bug libstdc++/116859] [15 Regression] Bootstrap broken on FreeBSD due to _GLIBCXX_USE_C99_LONG_LONG_DYNAMIC

[kargls at comcast dot net via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116859

--- Comment #6 from kargls at comcast dot net ---
(In reply to Jakub Jelinek from comment #5)
> Created attachment 59203 [details]
> gcc15-pr116859.patch
> 
> Here it is in patch form.  But I can't really test it on FreeBSD nor
> DragonFly.

I just grabbed the patch.  It will take about an hour to get
to the failing point.  I'll report back when completed.