id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
12144,Clang 3.9 trunk DONT_USE_HAS_NEW_OPERATOR warning,drivehappy@…,Robert Ramey,"Clang 3.9 is reporting the following warning:

{{{
boost/boost.1.58.0/boost/archive/detail/iserializer.hpp:65:7: error: macro expansion producing 'defined' has undefined behavior [-Werror,-Wexpansion-to-defined]
#if ! DONT_USE_HAS_NEW_OPERATOR
      ^
boost/boost.1.58.0/boost/archive/detail/iserializer.hpp:61:5: note: expanded from macro 'DONT_USE_HAS_NEW_OPERATOR'
    defined(__BORLANDC__)                              \
    ^
}}}

I believe this may have been initially fixed with: https://svn.boost.org/trac/boost/ticket/8120

Changing the source to not directly #define on #defined seems to resolve this warning:
{{{
#ifndef BOOST_MSVC
	#if BOOST_WORKAROUND(__IBMCPP__, < 1210)               \
            || defined(__SUNPRO_CC) && (__SUNPRO_CC < 0x590)
		#define DONT_USE_HAS_NEW_OPERATOR 1
	#else
		#define DONT_USE_HAS_NEW_OPERATOR 0
	#endif
#else
    #define DONT_USE_HAS_NEW_OPERATOR 0
#endif
}}}",Bugs,reopened,To Be Determined,serialization,Boost 1.61.0,Problem,,,