‘OUTPUT_DRAWMODE_CONTRAST’ defined but not used

[Khaled Hosny]

On Tue, Aug 25, 2015 at 05:54:32PM +0200, Stephan Bergmann wrote:
> On 08/25/2015 05:30 PM, Khaled Hosny wrote:
> >In may build I see this warning a lot:
> >In file included from cui/source/tabpages/textattr.cxx:37:0:
> >include/svx/dlgutil.hxx:37:28: warning: ‘OUTPUT_DRAWMODE_CONTRAST’ defined but not used [-Wunused-variable]
> >  static const DrawModeFlags OUTPUT_DRAWMODE_CONTRAST = DrawModeFlags::SettingsLine | DrawModeFlags::SettingsFill | DrawModeFlags::SettingsText | DrawModeFlags::SettingsGradient;
> >
> >I’m guessing it is caused by the static in the declaration since
> >OUTPUT_DRAWMODE_CONTRAST seems to be used somewhere.
> 
> Compilers are free to not emit storage for that per-copilation-unit const
> variable (what an oxymoron), and most compilers are apparently smart enough
> to not emit a -Wunused-variable in such a case (or else the build should
> break for many developers, assuming developers routinely configure
> --enable-werror).  Yours just isn't

I wouldn’t be able to finish any build if I turned this on, I get even
more warnings about deprecated std::auto_ptr which seems to be used in
boost’s get_pointer.hpp.

> ---some dated GCC?

That is GCC 5.2.0, so I guess a rather too new one.

Regards,
Khaled