[Bug fortran/31601] New: RFC: legacy-only allowed: State that code is allowed with -std=legacy ?

[burnus at gcc dot gnu dot org]

Currently, it is far from obvious that rejected code might be compilable with
-std=legacy/-fno-range-check or similar (is there anything else?). I think one
could add a note to the error message:

Examples: 
"Integer too big for its kind at %C" -> "Integer too big for its kind at %C.
Use -fno-range-check to disable this check"

"Duplicate PROTECTED attribute specified at %L" -> "Duplicate PROTECTED
attribute specified at %L. Use -std=legacy to disable this check"

If one does so, one might also consider to promote some of the STD_GNU to
STD_LEGACY. My candidate would be, e.g., re-typing of used symbols ("use a,
only: sym; integer sym").


-- 
           Summary: RFC: legacy-only allowed: State that code is allowed
                    with -std=legacy ?
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: diagnostic
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: burnus at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31601