https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99291
--- Comment #1 from Roland Illig <roland.illig at gmx dot de> --- similarly in common/config/riscv/riscv-common.c: > %<-march=%s%>: Extension `%s' appear more than one time. The `%s' is obsolete and should be replaced with %qs.
