Re: Add -Wdocumentation

[Bálint Réczey <balint () balintreczey hu>]

Hi,

2013/12/13 Alexis La Goutte <alexis.lagoutte () gmail com>:
> Hi,
>
> On Mon, Dec 9, 2013 at 5:58 PM, Bálint Réczey <balint () balintreczey hu>
> wrote:
> > 2013/12/9 Joerg Mayer <jmayer () loplof de>:
> > > On Fri, Dec 06, 2013 at 03:38:08PM +0100, Alexis La Goutte wrote:
> > > > I plan to add -Wdocumentation [1] by default to Wireshark (when build
> > > > with
> > > > Clang).
> > > > I have already fix in trunk the documentation.
> > > >
> > > > The major issue to add -Wdocumentation is other library (like
> > > > glib/gtk...)
> > > > It is don't use doxygen and make a lot of error.
> > > >
> > > > To fix this, i use pragma to disable error for glib.h or gtk using a
> > > > wrapper (like wsgcrypt.h)
> > > >
> > > > I attach the patch for gtk.h (the patch for glib.h is to big
> > > > (>500ko)...
> > > > because modified all dissector !)
> > > >
> > > > It is ok for you ?
> > >
> > > This solution looks like overkill to me (touching lots and lots of
> > > actual
> > > source files). Isn't there a way to handle this (at least mostly) via
> > > the
> > > build mechanisms
> >
> > I agree with Joerg, I think this -Wdocumentation flag badly needs a
> >
> > way of excluding headers in /usr/include and /usr/local/include .
>
> I not found other solution, to don't include /usr/*/include...
I mean this would be a necessary feature in Clang to support excluding
warnings from system headers.
Apparently it ignores those warnings by default and you can enable
warnings using -Wsystem-headers,
but headers found on -I paths are not considered to be system headers.

> > An alternative solution could be running Doxygen  and processing its
> > result/output, and I think it would work, too.
> Yes, but -Wdocumentation found some warning/error no found by Doxygen and it
> is include to build system (no need to have doxygen and graphviz...)
> I use just a wrapper (like libcrypt.h) !
Instead of using a wrapper I suggest adding a flag to clang to let
users extend the system header paths.
It would solve our problem and let many other projects benefit from it.

Cheers,
Balint

[1] http://clang-developers.42468.n3.nabble.com/Clang-Suppress-static-analysis-of-system-header-files-td4026991.html
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