devel/boost-libs: apply upstream patch for C++17 support

Since clang 16 (and gcc 11) the default C++ standard is now gnu++17.
Several ports that use boost/functional.hpp now complain with (for
example print/libmspub01):

  In file included from MSPUBCollector.cpp:17:
  In file included from /usr/local/include/boost/multi_array.hpp:34:
  In file included from /usr/local/include/boost/multi_array/multi_array_ref.hpp:32:
  /usr/local/include/boost/functional.hpp:45:24: error: no member named 'unary_function' in namespace 'std'; did you mean '__unary_function'?
              using std::unary_function;
                    ~~~~~^~~~~~~~~~~~~~
                         __unary_function
  /usr/include/c++/v1/__functional/unary_function.h:46:1: note: '__unary_function' declared here
  using __unary_function = __unary_function_keep_layout_base<_Arg, _Result>;
  ^
  In file included from MSPUBCollector.cpp:17:
  In file included from /usr/local/include/boost/multi_array.hpp:34:
  In file included from /usr/local/include/boost/multi_array/multi_array_ref.hpp:32:
  /usr/local/include/boost/functional.hpp:46:24: error: no member named 'binary_function' in namespace 'std'; did you mean '__binary_function'?
              using std::binary_function;
                    ~~~~~^~~~~~~~~~~~~~~
                         __binary_function
  /usr/include/c++/v1/__functional/binary_function.h:49:1: note: '__binary_function' declared here
  using __binary_function = __binary_function_keep_layout_base<_Arg1, _Arg2, _Result>;
  ^

This is because std::unary_function and std::binary_function were
removed from C++17. Upstream boost/functional fixed this in
https://github.com/boostorg/functional/commit/6a573e4, so apply that
patch until boost 1.83.0 is released with it.

PR:		271488
Approved by:	fluffy (maintainer)
MFH:		2023Q2

0 files changed, 0 insertions, 0 deletions