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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