Thank you for all the answers to my questions. With your help I found the 
following solution:

# start simulator
test4: test4.cir
        ngspice  test4.cir

# run drc2
test4.drc : test4.sch
        gnetlist -g drc2 test4.sch -o test4.drc
        if grep ERROR test4.drc ; then \
          echo "Failed DRC test!" ; false ; \
        fi

# create spice netlist
test4.cir : test4.sch test4.drc
        if grep ERROR test4.drc ; \
          then echo "Failed DRC test!" ; false ;   \
          else gnetlist -g spice-sdb test4.sch -o test4.cir > test4.gnet ; \
        fi


I will put it in my HOWTO about the design environment.

Peter


Reply via email to