Ruby

When building https://github.com/Ancurio/mkxp for windows (via i686-w64-mingw32), the following build error occurs:

In file included from /usr/i686-w64-mingw32/include/ruby-2.4.0/ruby/defines.h:243:0, from /usr/i686-w64-mingw32/include/ruby-2.4.0/ruby/ruby.h:36, from /usr/i686-w64-mingw32/include/ruby-2.4.0/ruby.h:33, from mkxp/binding-mri/binding-util.h:25, from mkxp/binding-mri/binding-mri.cpp:23: /usr/i686-w64-mingw32/include/boost/functional/hash/detail/float_functions.hpp: In member function 'Float boost::hash_detail::call_frexp<Float>::operator()(Float, int*) const': /usr/i686-w64-mingw32/include/ruby-2.4.0/ruby/win32.h:759:23: error: expected unqualified-id before '__extension__' #define frexp(_X, _Y) __extension__ ({\ ^ /usr/i686-w64-mingw32/include/ruby-2.4.0/ruby/win32.h:759:23: error: expected ';' before '__extension__'