[Bug c++/98362] bad file data on Windows for C++ 20 module

[nathan at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98362

--- Comment #2 from Nathan Sidwell <nathan at gcc dot gnu.org> ---
Created attachment 49797
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=49797&action=edit
test patch

care to try this?