[Patch, gcc-wwdocs] Update to Fortran changes

[Tobias Burnus]

Hi Mark,

On 11/26/19 11:46 AM, Mark Eggleston wrote:
> I've check the changes with W3 validator. There are no problems 
> related to my changes, however, it does object to the lack of 
> character encoding in the file.

Note that some script modifies the file a bit – the final file does have 
a character encoding (content="text/html; charset=utf-8").

> This is the first time in changing the wwwdoc, I haven't included a 
> change log as there there doesn't appear to be any ChangeLog files.

There is only a commit log (see 'git log'); the format is still a bit in 
a flux as before there was only 'csv' where it applied to a single file.

[With git it is useful to have a meaningful single line (for "git log 
--pretty=oneline") and, if needed, an empty line and something more. As 
the main repository is going to move to GIT as well, this also applies 
there. – But you already follow this style.]

> The patch is attached. OK to commit?

I wonder whether you should use a main bullet point with something like 
"Legacy improvements (<code>-fdec</code>)" under which you put the 
current list. [Or some other wording.] That makes it easier to read for 
users – those, who care about legacy support, can quickly look at the 
-fdec changes – while those interested in standard Fortran can skip it. 
(Except for the character-diagnostic type-info improvement, all are 
items seem to be for -fdec or -fdec-…)

In particular, currently, the following item does not make clear that it 
is about legacy support: "Variables with the <code>AUTOMATIC</code> 
attribute can be used in <code>EQUIVALENCE</code> statements."

I think it can remain as is with the -fdec umbrella item. But without it 
really requires the background knowledge that the AUTOMATIC attribute is 
only available with -fdec-static (or -fdec).

Cheers,

Tobias