illumos gate

NULL pointer errors:

    In file included from ../../common/sys/param.h:48:0,
                     from ../../common/sys/t_lock.h:38,
                     from ../../common/sys/buf.h:45,
                     from ../../common/sys/devops.h:35,
                     from ../../common/sys/sunddi.h:39,
                     from ../../i86pc/sys/smp_impldefs.h:31,
                     from ../../i86pc/io/ppm/acpisleep.c:29:
    ../../i86pc/io/ppm/acpisleep.c: In function 'acpi_enter_sleepstate':
    ../../common/sys/null.h:32:14: error: passing argument 2 of 'AcpiSetFirmwareWakingVector' makes integer from pointer without a cast [-Werror=int-conversion]
     #define NULL ((void *)0)
                  ^
    ../../i86pc/io/ppm/acpisleep.c:90:44: note: in expansion of macro 'NULL'
      if (AcpiSetFirmwareWakingVector(wakephys, NULL) != AE_OK) {
                                                ^~~~
    In file included from ../../intel/sys/acpi/acpi.h:173:0,
                     from ../../i86pc/io/ppm/acpisleep.c:43:
    ../../intel/sys/acpi/acpixf.h:1270:1: note: expected 'ACPI_PHYSICAL_ADDRESS {aka long unsigned int}' but argument is of type 'void *'
     AcpiSetFirmwareWakingVector (
     ^
    ../../intel/sys/acpi/acpixf.h:204:5: note: in definition of macro 'ACPI_EXTERNAL_RETURN_STATUS'
         Prototype;
         ^~~~~~~~~
    ../../intel/sys/acpi/acpixf.h:1268:1: note: in expansion of macro 'ACPI_HW_DEPENDENT_RETURN_STATUS'
     ACPI_HW_DEPENDENT_RETURN_STATUS (
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    cc1: all warnings being treated as errors