https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85575
--- Comment #10 from Jürgen Reuter <juergen.reuter at desy dot de> --- (In reply to Dominique d'Humieres from comment #9) > AFAICT > > (1) The behavior is present even without module: add > > implicit none > integer :: cl > > to the test in comment 4 and it compiles if -std=f* is not used. > > (2) The extension seems to "work" as expected. > > (3) The extension is not documented. > > How do you expect this PR to be fixed? > > (a) Remove the extension (beware benchmarks). > (b) Limit it to codes compiled with -std=legacy. > (c) Document it. > ... Tough question. Documentation never hurts, so probably yes. Now that you mentioned that this also works for external functions, I would suppose this was for backwards compatibility with code developed with g77. I would prefer gfortran to follow the standard and throw an error without restricting to -std=fXXXX, and allow the extension only for -std=legacy. But I feel that this is the responsibility of the developer team to decide on the policy.
