gEDA-user: gnetlist quitting after execl call

[Oliver King-Smith <oliverks1@xxxxxxxxx>]

   I am extending gnetlist and I dislike scheme.  To work around this I
   wrote a little program in C++ to do the heavy lifting and I am trying
   to call it from my scheme extension to gnetlist.
   I wrote the following function in scheme:
   (define magic:write_nmos_fet
     (lambda (w l m)
       (display (string-append "in write_nmos_fet " (number->string w)
   "\n") )

       (execl "/sw/share/gEDA/scheme/subfunction" " --m=" (number->string
   m)
              " --w=" (number->string w)  " --l=" (number->string l) "
   --type=nmos" )
       (display "Finished C call\n" )
         ))
   This works and calls my C++ program (called subfunction right now).
   The C++ program runs without problems and produces the expected
   output.  My problem is nothing seems to run in my scheme program after
   calling subfunction.  For example the line:
       (display "Finished C call\n" )
   does not run.  Nothing else appears to run after this.  However there
   are no error messages.
   Does anyone have any suggestions as to why this might be?
   Is there a better way to be calling external programs from gnetlist?
   Oliver


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