[Therion] Showing qestion mark texts broken?

[Benedikt Hallinger]

Hi,
i try to add a layout for showing the question mark texts.
For this i tried the additions from the websites:
a) https://therion.speleo.sk/samples.doc/60.html
b) http://marcocorvi.altervista.org/caving/tbe/m_05/m_054.htm
but neither seems to work. a) produces no change and b) triggers a 
compile error :(


This is a) implemented in my layout.conf (taken from the web)
---------------------------
layout showContinationText.inc
code metapost
     def p_continuation(expr pos,theta,sc,al) =

       % draw question mark above station:
       % rotation=0, scaling=1, offset=(0,2)
       %
       p_continuation_UIS(pos, 0.0, 1.0, (0, 2) );

       % if text attribute is set
       if known ATTR_text:
         % set labeling color to red
         push_label_fill_color(1.0, 0.0, 0.0);

         % draw filled label with text below station
         p_label.bot(ATTR__text, pos shifted (0,-0.5u), 0.0, 8);

         % restore original labeling color
         pop_label_fill_color;
       fi;
     enddef;
   endcode
endlayout
--------------------

and my thconfig export command includes this: "-layout 
showContinationText.inc", which in other cases is enough to activate it. 
The layout file is also loaded, i checked that.
However, no text is shown...

What am i doing wrong?


With best regards and happy christmas!