[Bug fortran/120220] New: Lack of testing for -fc-prototypes and -fc-prototypes-external

[tkoenig at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120220

            Bug ID: 120220
           Summary: Lack of testing for -fc-prototypes and
                    -fc-prototypes-external
           Product: gcc
           Version: 15.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: tkoenig at gcc dot gnu.org
  Target Milestone: ---

There is currently no way of testing the output of -fc-prototypes and
-fc-prototypes-external, which makes it much easier for regressions such
as PR120107 and PR120139 to creep in.

See also https://gcc.gnu.org/pipermail/fortran/2025-May/062134.html .