[Bug fortran/61234] New: Warn for use-stmt without explicit only-list.

[Joost.VandeVondele at mat dot ethz.ch]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=61234

            Bug ID: 61234
           Summary: Warn for use-stmt without explicit only-list.
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: Joost.VandeVondele at mat dot ethz.ch

It would be nice to have a warning (-Wuse-only) for a use-stmt without explicit
only-list. It would allow for enforcing this good style with -Werror.

Extra useful would be if the warning message would list everything that would
be required on the only-list.