libzmq: Problem: compilation broken with Solaris Studio

"src/ctx.cpp", line 506: Error: Could not find a match for std::map<std::string,zmq::endpoint_t>::insert(std::pair<const char*, zmq::endpoint_t>) needed in zmq::ctx_t::register_endpoint(const char*, const zmq::endpoint_t&).
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/utility", line 103: Note: Candidate 'std::pair<const std::string, zmq::endpoint_t>::pair(const std::string &, const zmq::endpoint_t&)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/utility", line 104: Note: Candidate 'std::pair<const std::string, zmq::endpoint_t>::pair()' is not viable: too many arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 235: Note: Candidate 'std::map<std::string,zmq::endpoint_t>::insert(const std::pair<const std::string, zmq::endpoint_t>&)' is not viable: argument 'x' can't be converted from 'std::pair<const char*, zmq::endpoint_t>' to 'const std::pair<const std::string, zmq::endpoint_t>&'.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 269: Note: Candidate 'std::map<std::string,zmq::endpoint_t>::insert(__rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::endpoint_t>, __rwstd::__select1st<std::pair<const std::string, zmq::endpoint_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::endpoint_t>>>::const_iterator, __rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::endpoint_t>, __rwstd::__select1st<std::pair<const std::string, zmq::endpoint_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::endpoint_t>>>::const_iterator)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 265: Note: Candidate 'std::map<std::string,zmq::endpoint_t>::insert(__rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::endpoint_t>, __rwstd::__select1st<std::pair<const std::string, zmq::endpoint_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::endpoint_t>>>::iterator, __rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::endpoint_t>, __rwstd::__select1st<std::pair<const std::string, zmq::endpoint_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::endpoint_t>>>::iterator)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 261: Note: Candidate 'std::map<std::string,zmq::endpoint_t>::insert(const std::pair<const std::string, zmq::endpoint_t>*, const std::pair<const std::string, zmq::endpoint_t>*)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/utility", line 103: Note: Candidate 'std::pair<std::string, zmq::endpoint_t>::pair(const std::string &, const zmq::endpoint_t&)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/utility", line 104: Note: Candidate 'std::pair<std::string, zmq::endpoint_t>::pair()' is not viable: too many arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 248: Note: Candidate 'std::map<std::string,zmq::endpoint_t>::insert(const std::pair<std::string, zmq::endpoint_t>&)' is not viable: argument '__x' can't be converted from 'std::pair<const char*, zmq::endpoint_t>' to 'const std::pair<std::string, zmq::endpoint_t>&'.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 243: Note: Candidate 'std::map<std::string,zmq::endpoint_t>::insert(__rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::endpoint_t>, __rwstd::__select1st<std::pair<const std::string, zmq::endpoint_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::endpoint_t>>>::iterator, const std::pair<const std::string, zmq::endpoint_t>&)' is not viable: too few arguments.


"src/ctx.cpp", line 582: Error: Could not find a match for std::multimap<std::string, zmq::ctx_t::pending_connection_t, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::insert(std::pair<std::string, zmq::ctx_t::pending_connection_t>) needed in zmq::ctx_t::pend_connection(const std::string &, const zmq::endpoint_t&, zmq::pipe_t**).
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/utility", line 103: Note: Candidate 'std::pair<const std::string, zmq::ctx_t::pending_connection_t>::pair(const std::string &, const zmq::ctx_t::pending_connection_t&)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/utility", line 104: Note: Candidate 'std::pair<const std::string, zmq::ctx_t::pending_connection_t>::pair()' is not viable: too many arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 487: Note: Candidate 'std::multimap<std::string, zmq::ctx_t::pending_connection_t, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::insert(const std::pair<const std::string, zmq::ctx_t::pending_connection_t>&)' is not viable: argument 'x' can't be converted from 'std::pair<std::string, zmq::ctx_t::pending_connection_t>' to 'const std::pair<const std::string, zmq::ctx_t::pending_connection_t>&'.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 508: Note: Candidate 'std::multimap<std::string, zmq::ctx_t::pending_connection_t, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::insert(__rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::ctx_t::pending_connection_t>, __rwstd::__select1st<std::pair<const std::string, zmq::ctx_t::pending_connection_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::const_iterator, __rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::ctx_t::pending_connection_t>, __rwstd::__select1st<std::pair<const std::string, zmq::ctx_t::pending_connection_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::const_iterator)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 504: Note: Candidate 'std::multimap<std::string, zmq::ctx_t::pending_connection_t, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::insert(__rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::ctx_t::pending_connection_t>, __rwstd::__select1st<std::pair<const std::string, zmq::ctx_t::pending_connection_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::iterator, __rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::ctx_t::pending_connection_t>, __rwstd::__select1st<std::pair<const std::string, zmq::ctx_t::pending_connection_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::iterator)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 500: Note: Candidate 'std::multimap<std::string, zmq::ctx_t::pending_connection_t, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::insert(const std::pair<const std::string, zmq::ctx_t::pending_connection_t>*, const std::pair<const std::string, zmq::ctx_t::pending_connection_t>*)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 488: Note: Candidate 'std::multimap<std::string, zmq::ctx_t::pending_connection_t, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::insert(__rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::ctx_t::pending_connection_t>, __rwstd::__select1st<std::pair<const std::string, zmq::ctx_t::pending_connection_t>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::ctx_t::pending_connection_t>>>::iterator, const std::pair<const std::string, zmq::ctx_t::pending_connection_t>&)' is not viable: too few arguments.


"src/radio.cpp", line 81: Error: Could not find a match for std::multimap<std::string, zmq::pipe_t*, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::insert(std::pair<std::string, zmq::pipe_t*>) needed in zmq::radio_t::xread_activated(zmq::pipe_t*).
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/utility", line 103: Note: Candidate 'std::pair<const std::string, zmq::pipe_t*>::pair(const std::string &, zmq::pipe_t*const&)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/utility", line 104: Note: Candidate 'std::pair<const std::string, zmq::pipe_t*>::pair()' is not viable: too many arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 487: Note: Candidate 'std::multimap<std::string, zmq::pipe_t*, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::insert(const std::pair<const std::string, zmq::pipe_t*>&)' is not viable: argument 'x' can't be converted from 'std::pair<std::string, zmq::pipe_t*>' to 'const std::pair<const std::string, zmq::pipe_t*>&'.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 508: Note: Candidate 'std::multimap<std::string, zmq::pipe_t*, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::insert(__rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::pipe_t*>, __rwstd::__select1st<std::pair<const std::string, zmq::pipe_t*>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::const_iterator, __rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::pipe_t*>, __rwstd::__select1st<std::pair<const std::string, zmq::pipe_t*>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::const_iterator)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 504: Note: Candidate 'std::multimap<std::string, zmq::pipe_t*, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::insert(__rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::pipe_t*>, __rwstd::__select1st<std::pair<const std::string, zmq::pipe_t*>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::iterator, __rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::pipe_t*>, __rwstd::__select1st<std::pair<const std::string, zmq::pipe_t*>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::iterator)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 500: Note: Candidate 'std::multimap<std::string, zmq::pipe_t*, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::insert(const std::pair<const std::string, zmq::pipe_t*>*, const std::pair<const std::string, zmq::pipe_t*>*)' is not viable: too few arguments.
"/opt/developerstudio12.6/lib/compilers/include/CC/Cstd/map", line 488: Note: Candidate 'std::multimap<std::string, zmq::pipe_t*, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::insert(__rwstd::__rb_tree<std::string, std::pair<const std::string, zmq::pipe_t*>, __rwstd::__select1st<std::pair<const std::string, zmq::pipe_t*>, std::string>, std::less<std::string>, std::allocator<std::pair<const std::string, zmq::pipe_t*>>>::iterator, const std::pair<const std::string, zmq::pipe_t*>&)' is not viable: too few arguments.

@sigiesec https://github.com/zeromq/libzmq/pull/2796 and https://github.com/zeromq/libzmq/pull/2799 causes a regression on Solaris 10/11, reported in https://github.com/zeromq/pyzmq/issues/1157 any idea how to fix the above? SunCC only supports C++97