*** ./lsof_4.86_src/main.c.ORIG	Thu Oct 20 00:22:50 2011
--- ./lsof_4.86_src/main.c	Thu Oct 20 00:31:48 2011
***************
*** 111,116 ****
--- 111,133 ----
  	    Pn++;
  	else
  	    Pn = argv[0];
+ 
+ /*
+  * Only use this if we know this has been built for 32bit kernel,
+  * and we are potentially executing this with a 64bit kernel.
+  * Assumes a 64-bit version is available as "lsof64" to execute in
+  * place of this 32-bit default.
+  */
+         if ( (strcmp(Pn, "lsof64")) && (__KERNEL_64()) ) {
+          /* This is a not lsof64, but it is a 64-bit kernel.  The current
+           * lsof will not work.  Attempt to exec "lsof64" instead.
+           */
+             execvp ("/opt/freeware/sbin/lsof64", argv);
+             perror(Pn);
+             (void) fprintf(stderr, "Could not exec /opt/freeware/sbin/lsof64\n");
+             Exit(1);
+          }
+ 
  /*
   * Close all file descriptors above 2.
   *