#BEGIN
    {
    if (!once) {
        string = FILENAME;
	string = toupper(string);
	gsub("\\\.","_",string);
	print "#ifndef	" string ;
	print "#define	" string ;
	print "#ifdef __cplusplus" ;
	print "extern \"C\" {" ;
	print "#endif " ;
	once = 1;
    }
    print $0
    }
END {
	print "#ifdef __cplusplus" ;
	print "}" ;
	print "#endif " ;
	print "#endif /* " string " */";
    }