BEGIN {

if (ARGC <=  2)  {

    print "Bogus use of awk file, requires arg"

    exit 1   

} else  {

    v=ARGV[1]

    ARGV[1]=""

}

}

$0 ~  /#define DW_VERSION_DATE_STR/ { print $1, $2, "\"",v,"\"" }

$0 !~ /^#define DW_VERSION_DATE_STR/ { print $0 }