{
  ## Explicit VAR declarations
  if (match($1,var)>0) print $2 "\t" system_name;

   ## Implicit declarations from the arg list
  if (match($1,"arg")>0) {
    args=substr($3,2,length($3)-3);
    N=split(args, arg, ",");
    for (i=1;i<=N;i++){
      if ( (length(arg[i])>0)&&(matches(not_an_arg,arg[i])==0)&&(match(arg[i],"^[0-9]+[.]*")==0) ){
        print arg[i] "\t" system_name;
      }
    print args
  }
    }
  }
}' system_name=$2 |\
grep -v '^\$' #|\
#sort -u > $1_sympar.txt 2>mtt_error.txt
grep -v '^\$' | mtt_strip_args |\
sort -u > $1_sympar.txt 2>mtt_error.txt

# Now invoke the standard error handling.
# mtt_error mtt_error.txt
mtt_error mtt_error.txt