[Flightgear-devel] Use of included xml files from Instruments-3d/* from an aircraft located outside of $FG_ROOT

[Hal V. E. <hv...@gm...>]

I starting working on making the SCR-522C radio functional and ran into a 
problem.  Looking at other devices in Aircraft/Instruments3d to see how I 
could initialize the device I found that the kma20 does this by using a 
initialization xml file that is included from the aircraft-set.xml file.  So I 
copied how it was doing things.   

When working on this from an aircraft that is not located in $FG_ROOT (IE. my 
clone of fg-data using fg-aircraft=<my fgdata clone/my aircraft>) I was 
getting file not found errors.  At first I though that perhaps I had a typo or 
something similar in my code but after looking things over very carefully I 
couldn't find the problem.  So as a test I modified the aircraft-set.xml for the 
same aircraft  in $FG_ROOT and tested with it and it didn't have the problem.  
I did some more testing and found if I run the aircraft from my development 
copy of fgdata it works but only if the xml file I am including in the 
aircraft-set.xml file is located in the same tree as the aircraft.  So it does 
not find it in the $FG_ROOT directories like it should based on how the fg-
aircraft stuff has been explained.  Is this a bug or I am not understanding how 
this should work?

Hal