https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81421
martin <mfe at live dot de> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #18 from martin <mfe at live dot de> --- Thanks for your hint. I reinstalled grep which fixed the issue. grep/egrep/fgrep is now on version 2.15 and the symlinks disappeared.