[Bug other/21823] MAXPATHLEN usage in [gcc]/fixincludes

[xry111 at mengyan1223 dot wang via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=21823

--- Comment #8 from Xi Ruoyao <xry111 at mengyan1223 dot wang> ---
(In reply to Xi Ruoyao from comment #7)
> New patch, for both PR 80047 and this one.

https://gcc.gnu.org/pipermail/gcc-patches/2021-November/584164.html