+#if defined(__SGI_CC__)
+// Okay this is bad styling, but the native SGI compiler is very picky, it
+// wont let you compare/assign between a NULL (void *) and another pointer
+// type. To be really clean we'd need to pass in another argument, the type
+// of p.
+// Also note the use of 0L, this would allow future possible 64bit support
+// (as yet untested) by ensuring that we zero all the bits in a pointer
+// (which is always the same length as a long (at least with the LP64 standard)
+// --- offer aug 98
+#define wxDELETE(p) if ( (p) ) { delete (p); p = 0L; }
+#else
+#define wxDELETE(p) if ( (p) != NULL ) { delete p; p = NULL; }
+#endif /* __SGI__CC__ */