../../libpager/pager-memcpy.c:51:28: error: expected ';' at end of declaration
  error_t do_vm_copy (void)
                           ^
                           ;
../../libpager/pager-memcpy.c:171:67: error: expected ';' at end of declaration
  void fault (int signo, long int sigcode, struct sigcontext *scp)
                                                                  ^
                                                                  ;
../../libpager/pager-memcpy.c:207:15: error: use of undeclared identifier 'buf'
  if (setjmp (buf) == 0)
              ^
/usr/include/setjmp.h:68:31: note: expanded from macro 'setjmp'
# define setjmp(env)    _setjmp (env)
                                 ^
../../libpager/pager-memcpy.c:210:11: error: use of undeclared identifier 'do_copy'; did you mean 'vm_copy'?
                       &do_copy, (sighandler_t) &fault);
                        ^~~~~~~
                        vm_copy
/usr/include/mach/mach_interface.h:872:15: note: 'vm_copy' declared here
kern_return_t vm_copy
              ^
4 errors generated.