/^\/\* EXTPROTO \*\/$/ {
    getline	# function return
    printf "%-16s ", $0
    getline	# function name and args
    l = index($0, "(")
    outstring = sprintf("%%-23.%ds __PROTO(", l - 1)
    printf outstring, $0
    reststring = substr($0, l)
    printf reststring
    print ");"
}
