auto_ptr deprecation warnings from boost

[Michael Stahl]

On 26.08.2015 15:57, Stephan Bergmann wrote:
> On 08/26/2015 03:43 PM, Michael Stahl wrote:
>> On 26.08.2015 15:34, Stephan Bergmann wrote:
>>> On 08/25/2015 05:59 PM, Khaled Hosny wrote:
>>>> 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.
>>>
>>> These would go away (or at least not cause an error) if you use
>>> --without-system-boost, IIUC.
>>
>> that's not the case for me.  but it's odd that these warnings aren't
>> converted to errors with --enable-werror - they remain warnings.
> 
> Yeah, I see lots of such auto_ptr-related warnings when building with 
> GCC (none with Clang), but never as errors, so assumed their 
> non-errorness was due to the various
> 
>    +# pragma GCC diagnostic ignored "-Wdeprecated-declarations"
> 
> in external/boost/boost.wdeprecated-auto_ptr.patch.0, finding no other 
> obvious place in the LO sources that cause them to be demoted from error 
> to mere warning.

yes but that would be "GCC diagnostic warning" - the "GCC diagnostic
ignored" is supposed to suppress them completely.

https://gcc.gnu.org/onlinedocs/gcc-5.1.0/gcc/Diagnostic-Pragmas.html

>>>>> ---some dated GCC?
>>>>
>>>> That is GCC 5.2.0, so I guess a rather too new one.
>>>
>>> Odd, neither the Fedora 22 GCC 5.1.1 nor a recent trunk build (towards
>>> GCC 6) triggers that warning for me when building cui.
>>
>> i'm getting loads of these on Fedora 22.
> 
> "these" being auto_ptr-related warnings, or the OUTPUT_DRAWMODE_CONTRAST 
> -Wunused-variable that my "that warning" references?

the auto_ptr ones.