[Bug fortran/30929] -pedantic-error produced only warnings and no errors

["burnus at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #4 from burnus at gcc dot gnu dot org  2007-03-05 18:08 -------
> I am not sure if gfortran diagnostics are different,

I think gfortran handles the warnings quite different, not that I know much
about the details of the C frontend.

> but... are you sure that particular warning is a pedantic warning and not 
> simply an unconditional warning?

primary.c:  if (x_hex && pedantic
primary.c-      && (gfc_notify_std (GFC_STD_GNU, "Extension: Hexadecimal "

This gives only an error with pedantic set (and -std=f95 or -std=f2003).

Otherwise, -pedantic is quite interwoven with the rest: options.c, e.g.:

  if (pedantic)
    {
      gfc_option.warn_ampersand = 1;
      gfc_option.warn_tabs = 0;
    }

No idea how to untangle -pedantic from -Wtabs or -Wampersand if
-pedantic-errors has been given, but -Werror has not.

Silently accepting and ignoring it, seems not to be the right way. The simple
solution is not to accept -pedantic-errors (and to point to -Werror) or to turn
on -Werror for -pedantic-errors. Both are rather easy solutions - and feel a
bit clumsy. It needs presumably quite a lot of work to support -pedantic-errors
properly.

First and simpler step should be to change "Warning:" into "Error:" for -Werror
to be in line with the C front end.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=30929