https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105506
--- Comment #4 from Brecht Sanders <brechtsanders at users dot sourceforge.net> --- I just ran `gcc -print-prog-name=cc1` and saw the output was only `cc1` while on working versions it reports a full path to `cc1.exe` (e.g. `d:/prog/winlibs64_stage/custombuilt/share/gcc/bin/../libexec/gcc/x86_64-w64-mingw32/12.1.0/cc1.exe`). In this minimal case Process Monitor also shows the handle to `cc1.exe` is successfully opened but the subsequent calls to QueryInformationVolume and QueryAllInformationFile fail with BUFFER_OVERFLOW.
