In file included from /tmp/ports/usr/ports/www/firefox/work/firefox-73.0/config/external/rlbox/rlbox_thread_locals.cpp:10:                                                                
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/include/mozilla/rlbox/rlbox_noop_sandbox.hpp:4:
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/stl_wrappers/cstdlib:44:
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/system_wrappers/cstdlib:3:
In file included from /usr/include/c++/v1/cstdlib:85:
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/system_wrappers/stdlib.h:3:
In file included from /usr/include/c++/v1/stdlib.h:100:
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/system_wrappers/math.h:3:
In file included from /usr/include/c++/v1/math.h:311:
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/stl_wrappers/type_traits:50:
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/include/mozilla/mozalloc.h:31:
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/stl_wrappers/new:44:
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/system_wrappers/new:3:
In file included from /usr/include/c++/v1/new:90:
In file included from /tmp/ports/usr/ports/www/firefox/work/.build/dist/system_wrappers/exception:3:
/usr/include/c++/v1/exception:180:5: error: no member named 'abort' in namespace 'std::__1'; did you mean simply 'abort'?
    _VSTD::abort();
    ^~~~~~~
/usr/include/c++/v1/__config:759:15: note: expanded from macro '_VSTD'
#define _VSTD std::_LIBCPP_ABI_NAMESPACE
              ^
/usr/include/stdlib.h:86:17: note: 'abort' declared here
_Noreturn void   abort(void);
                 ^