When a device node has no siblings hald aborts - this happens on many non-x86 architectures under NetBSD, namely macppc, sparc64 and sgimips ( x86 doesn't trigger it for some reason )

It's trivial to fix:
--- hald/device_info.c.orig     2010-01-24 19:45:40.000000000 -0500
+++ hald/device_info.c
@@ -1083,8 +1083,15 @@ rules_match_and_merge_device (void *fdi_
                                /*HAL_INFO(("no match, skip to rule (%llx)", rul
e->jump_position));*/
                                rule = di_jump(rule);
 
+#if 0
+                               /*
+                                * XXX
+                                * this fires when a node has a single child
+                                * which happens on some non-x86 machines
+                                */
                                if(rule == NULL)
                                        DIE(("Rule is NULL on jump"));
+#endif
 
                                continue;
                        }
With this hald Just Works(tm) on NetBSD/macppc:
/usr/pkgsrc/sysutils/hal# lshal

Dumping 71 device(s) from the Global Device List:
-------------------------------------------------
udi = '/org/freedesktop/Hal/devices/computer'
  info.product = 'Computer'  (string)
  info.subsystem = 'unknown'  (string)
  info.udi = '/org/freedesktop/Hal/devices/computer'  (string)
  netbsd.device = 'mainbus0'  (string)
  power_management.can_hibernate = false  (bool)
  power_management.can_suspend = true  (bool)
  power_management.type = 'apm'  (string)
  system.formfactor = 'desktop'  (string)
  system.kernel.machine = 'macppc'  (string)
  system.kernel.name = 'NetBSD'  (string)
  system.kernel.version = '5.99.24'  (string)

udi = '/org/freedesktop/Hal/devices/uninorth2'
  info.parent = '/org/freedesktop/Hal/devices/computer'  (string)
  info.product = 'uninorth2'  (string)
  info.udi = '/org/freedesktop/Hal/devices/uninorth2'  (string)
  netbsd.device = 'uninorth2'  (string)

udi = '/org/freedesktop/Hal/devices/pci3'
  info.parent = '/org/freedesktop/Hal/devices/uninorth2'  (string)
  info.product = 'pci3'  (string)
  info.udi = '/org/freedesktop/Hal/devices/pci3'  (string)
  netbsd.device = 'pci3'  (string)

udi = '/org/freedesktop/Hal/devices/gem0'
  info.parent = '/org/freedesktop/Hal/devices/pci3'  (string)
  info.product = 'gem0'  (string)
  info.udi = '/org/freedesktop/Hal/devices/gem0'  (string)
  netbsd.device = 'gem0'  (string)

udi = '/org/freedesktop/Hal/devices/brgphy1'
  info.parent = '/org/freedesktop/Hal/devices/gem0'  (string)
  info.product = 'brgphy1'  (string)
  info.udi = '/org/freedesktop/Hal/devices/brgphy1'  (string)
  netbsd.device = 'brgphy1'  (string)
...
etc.