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Re: Deprecation warnings with GCC 12


Hi Steve,

These warnings have already been addressed in the master branch because we
switched to C++17 (so those deprecated functions were removed and no longer
available). We didn't cherry-pick the change to v6 though, because it was
more of a cleanup than a bug fix (and v6 is staying with C++14, so it will
always have those functions). I think you could safely ignore the warnings
in the build with the understanding they will be fixed in v7.


On Tue, Jan 25, 2022 at 10:46 PM Steven A. Falco <stevenfalco@xxxxxxxxx>

> I don't know if anyone is currently interested in deprecation warnings
> with GCC 12, but I'm seeing messages like:
> /builddir/build/BUILD/kicad-6.0.1/include/hashtables.h:36:25: warning:
> 'template<class _Arg1, class _Arg2, class _Result> struct
> std::binary_function' is deprecated [-Wdeprecated-declarations]
> and
> /builddir/build/BUILD/kicad-6.0.1/include/hashtables.h:80:29: warning:
> 'template<class _Arg, class _Result> struct std::unary_function' is
> deprecated [-Wdeprecated-declarations]
> when building with GCC 12.  I'm not a C++ developer so I don't know how
> significant these are.
> A full log is available here:
> https://kojipkgs.fedoraproject.org//work/tasks/7031/81867031/build.log
> Should I write this up as an issue, or should it be ignored for now?
>         Steve
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