[mythtv] Myth System Status "unknown"

[Paul]

I noticed on the Information -> System Status page  on Listing Status
I see the Myth version as follows:

Myth Version 0.20.20060828-3 Unknown

What does the "unknown" represent? is it a compile time value?

ie
I think this is the source code:

http://svn.mythtv.org/trac/browser/trunk/mythtv/programs/mythfrontend/statusbox.cpp

...snip
719  extern const char *myth_source_version;
720 	    contentLines[count++] = QObject::tr("Myth version:") + " " +
721 	                                   MYTH_BINARY_VERSION + "   " +
722 	                                    myth_source_version;

..snip

Why is the myth_source_version blank or unknown?


Just curious...
Paul