std::binary_function has been removed from C++17 & build fails on FreeBSD 14.1

[jeffpc]

Compilation fails on FreeBSD 14.1 because comboaddress.hh uses std::binary_function which (according to [1]) has been deprecated in C++11 and removed from C++17. Clang 18.1.5 (the default compiler on FreeBSD 14.1) fails as a result. It looks like simplesocket already got a fix for that earlier this year (3af5e1d449128d0f3c), but the submodule pointers haven't been updated so galmon is still pulling in the commit without the fix.

[1] https://en.cppreference.com/w/cpp/utility/functional/binary_function

In file included from ubxtool.cc:34:
ext/powerblog/ext/simplesocket/comboaddress.hh:157:40: error: no template named 'binary_function' in namespace 'std'; did you mean '__binary_function'?
  157 |   struct addressOnlyEqual: public std::binary_function<ComboAddress, ComboAddress, bool>
      |                                   ~~~~~^~~~~~~~~~~~~~~
      |                                        __binary_function
/usr/include/c++/v1/__functional/binary_function.h:49:1: note: '__binary_function' declared here
   49 | using __binary_function = __binary_function_keep_layout_base<_Arg1, _Arg2, _Result>;
      | ^

[jeffpc]

This is still a problem. The solution turns out to be as easy as updating the ext/powerblog/ext/simplesocket submodule which has had the fix for over a year now.