https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108350
--- Comment #20 from Bill Zissimopoulos <gnu.org at billz dot fastmail.fm> --- Regarding LINE 192: I would add that if somehow the path returned by GetFinalPathNameByHandle does not conform to the \\?\X: or \\?\UNC\ pattern I would fall back to GetFullPathName.
