https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109512
kargl at gcc dot gnu.org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever confirmed|0 |1 CC| |kargl at gcc dot gnu.org Last reconfirmed| |2023-04-14 --- Comment #1 from kargl at gcc dot gnu.org --- Confirmed. 8.7 IMPLICIT statement ... An IMPLICIT NONE statement can indicate ..., or that external and dummy procedures need to be explicitly given the EXTERNAL attribute. 'bar' is clearly a dummy procedure, so 'externa bar' is required.