Any clues on Bug 230053 - emulators/virtualbox-ose 5.2.16 failed to build?

[Graham Menhennitt]

G'day all,

Does anybody have any clues on how to fix/workaround Bug 230053 - 
emulators/virtualbox-ose 5.2.16 failed to build?

I've build VBox many times in the past but have just got this error.


In file included from 
/usr/ports_build/usr/data/FreeBSD/ports/emulators/virtualbox-ose/work/VirtualBox-5.2.22/src/recompiler/cpu-exec.c:30:
/usr/ports_build/usr/data/FreeBSD/ports/emulators/virtualbox-ose/work/VirtualBox-5.2.22/src/recompiler/target-i386/exec.h:41:38: 
error: register 'r14' unsuitable for global register variables on this 
target
register struct CPUX86State *env asm(AREG0);
                                      ^
/usr/ports_build/usr/data/FreeBSD/ports/emulators/virtualbox-ose/work/VirtualBox-5.2.22/src/recompiler/dyngen-exec.h:81:15: 
note: expanded from macro 'AREG0'
#define AREG0 "r14"
               ^

Any ideas?

Thanks,

     Graham