https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68848
--- Comment #5 from Daniel Kahn Gillmor <dkg at fifthhorseman dot net> --- Created attachment 37007 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37007&action=edit ignore -fdebug-prefix-map when generating DW_AT_producer Here is an alternate approach (suggested by Bernd Schmidt): just avoid writing -fdebug-prefix-map to the DW_AT_producer field entirely.
