[Bug debug/77985] DW_AT_comp_dir is omitted when filename is absolute and the file does not contain a specific typedef

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=77985

--- Comment #10 from Richard Biener <rguenth at gcc dot gnu.org> ---
Please post the patch to gcc-patches@ where other people can see this and
comment.