Issue overview

Current Behavior

Every new compiler version out there removes deprecated stuff from C++ STD lib, and this is especially true on Xcode / clang.

We're having to define some macros when building via conan -c tools.build:cxxflags="['-D_LIBCPP_ENABLE_CXX17_REMOVED_UNARY_BINARY_FUNCTION']" and some more inside our cmake.

Expected Behavior

Steps to Reproduce

Update to xcode 15.3 or 15.4

 In file included from ./boost/unordered/detail/implementation.hpp:48:
./boost/unordered/detail/fwd.hpp:53:16: error: no member named 'piecewise_construct' in namespace 'std'; did you mean 'piecewise_construct_t'?
    using std::piecewise_construct;
          ~~~~~^~~~~~~~~~~~~~~~~~~
               piecewise_construct_t
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX14.5.sdk/usr/include/c++/v1/__utility/piecewise_construct.h:20:29: note: 'piecewise_construct_t' declared here
struct _LIBCPP_TEMPLATE_VIS piecewise_construct_t { explicit piecewise_construct_t() = default; };

https://github.com/openstudiocoalition/OpenStudioApplication/actions/runs/9923938518/job/27414679234#step:17:5403

Possible Solution

Upgrade to a more recent boost, 1.85.0 right now

Details

Environment

Some additional details about your environment for this issue (if relevant):

• Platform (Operating system, version): all, but especially mac
• Version of OpenStudio (if using an intermediate build, include SHA): ba1b94b

Context

Found after upgrading compiler on an arm mac.