https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80701
Dominique d'Humieres <dominiq at lps dot ens.fr> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |WAITING Last reconfirmed| |2017-05-10 Ever confirmed|0 |1 --- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> --- > The compiler does generate a warning about the implicit interface if > -Wimplicit-interface is turned on explicitly. I would suggest this should > be on by default with -Wall on any source not written in F77, How do you know it before hand? In addition I don't think the warning is relevant: if I add an interface, the warning disappears (as it should), but there is still no mention of the "undefined" symbol that is used in the code. > or when a higher standard is enforced. IMO this should be closed as WONTFIX.