libstdc++ bootstrap failure after r261525

[Jeff Law]

On 06/12/2018 03:26 PM, Martin Sebor wrote:
> Bootstrap fails in libstdc++ with the following error.
> I haven't investigated it much except to take a peek
> at recent libstdc++ commits where r261525 looks like it
> introduced __glibcxx_check_can_increment_range, so it
> seems like it might have something to do with it.  I don't
> see a __glibcxx_requires_can_increment_range macro defined
> anywhere in the patch so maybe it's a typo?  Francois, can
> you please see what's going on?
> 
> /opt/notnfs/msebor/build/gcc-86114/x86_64-pc-linux-gnu/libstdc++-v3/include/bits/stl_algobase.h:452:45:
> error: ‘__glibcxx_requires_can_increment_range’ was not declared in this
> scope
> Â Â Â Â Â Â  __glibcxx_requires_can_increment_range(__first, __last, __result);
> 
> Thanks
> Martin
Yup.  My tester is flagging it as well.

jeff