In file included from /code/illumos-gate/proto/root_i386/usr/include/iso/stdlib_iso.h:50:0,
                 from /code/illumos-gate/proto/root_i386/usr/include/stdlib.h:37,
                 from sbdadm.c:26:
/code/illumos-gate/proto/root_i386/usr/include/sys/null.h:28:14: error: initialization makes integer from pointer without a cast [-Werror=int-conversion]
 #define NULL ((void *)0)
              ^
sbdadm.c:91:25: note: in expansion of macro 'NULL'
  { NULL, 0, 0, NULL, 0, NULL}
                         ^~~~
/code/illumos-gate/proto/root_i386/usr/include/sys/null.h:28:14: note: (near initialization for 'subCommands[5].operand')
 #define NULL ((void *)0)
              ^
sbdadm.c:91:25: note: in expansion of macro 'NULL'
  { NULL, 0, 0, NULL, 0, NULL}
                         ^~~~
cc1: all warnings being treated as errors