[Bug fortran/91167] -pedantic-errors does not turn -pedantic warnings into errors

[mark.eggleston at codethink dot co.uk]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91167

--- Comment #2 from mark.eggleston at codethink dot co.uk ---
On 15/07/2019 11:24, dominiq at lps dot ens.fr wrote:
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91167
>
> Dominique d'Humieres <dominiq at lps dot ens.fr> changed:
>
>             What    |Removed                     |Added
> ----------------------------------------------------------------------------
>             Priority|P3                          |P5
>               Status|UNCONFIRMED                 |NEW
>     Last reconfirmed|                            |2019-07-15
>               Blocks|                            |89078
>       Ever confirmed|0                           |1
>             Severity|normal                      |enhancement
>
> --- Comment #1 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
> As old as gcc 4.4.7.
>
> Anyway the documentation of -pedantic is wrong (pr35930) and IIRC is not
> handled by gfortran.
 From the code it looks like -pedantic is handled as it is checked in 
fortran/options,c setting the standards bits accordingly. Warning and 
errors produced by gfc_notify_std are output based on standards bit 
mask, most GNU and Legacy warnings are output using gfc_notify_standard. 
GNU Extension warnings from what I've seen so far are only output if 
-pedantic is used as an option.
>
>
> Referenced Bugs:
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89078
> [Bug 89078] [meta-bug] Improve the gfortran manual