Index: /trunk/psLib/src/sys/psExit.h
===================================================================
--- /trunk/psLib/src/sys/psExit.h	(revision 10978)
+++ /trunk/psLib/src/sys/psExit.h	(revision 10979)
@@ -6,5 +6,6 @@
 /// These provide a bit finer granularity compared to success/fail
 typedef enum {
-    PS_EXIT_SUCCESS = 0,                ///< Successful termination
+    PS_EXIT_SUCCESS = 0,                ///< Successful termination; matches EXIT_SUCCESS
+    PS_EXIT_UNKNOWN_ERROR = 1,          ///< Error of unknown nature; matches EXIT_FAILURE
     PS_EXIT_SYS_ERROR,                  ///< Error with a system call
     PS_EXIT_CONFIG_ERROR,               ///< Error with configuration