Index: trunk/psLib/src/astro/psTime.h
===================================================================
--- trunk/psLib/src/astro/psTime.h	(revision 17023)
+++ trunk/psLib/src/astro/psTime.h	(revision 22678)
@@ -474,6 +474,10 @@
 );
 
-// used by p_psEOCInit()
-const char *p_psTimeConfigFilename(const char *filename);
+/// Return the name of the configuration file used for time
+///
+/// The name is derived first from the environment variable PS_CONFIG_FILE if set; next from a previously used
+/// configuration file if available; finally from the default which is set at install time.
+const char *p_psTimeConfigFilename(const char *filename // Filename to use, or NULL
+    );
 
 /// @}